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Attachment 4 - Engineering and Traffic Survey for Speed Limits

Manteca City Council
May 2, 2023

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Attachment 4 - Engineering and Traffic Survey for Speed Limits
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May 2, 2023
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ENGINEERING AND TRAFFIC SURVEY FOR

SPEED LIMITS
Final Report
May 2, 2023
City of Manteca
Engineering Department
ATTACHMENT 4
ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
i May 2023

TABLE OF CONTENTS
Table of Contents ................................................................................................................ i

1.0 Introduction ............................................................................................................. 1

1.1 Regulations and Guidelines. ....................................................................................................... 1

1.2 Requirements and Methodology of an Engineering and Traffic Study ..................... 4

2.0 Speed Survey Evaluation ........................................................................................ 5

2.1 Field Review ...................................................................................................................................... 8

2.2 Statistical Analysis Factors ........................................................................................................... 9

2.3 California MUTCD and CVC Guidance .................................................................................. 10

2.4 Collision History. ........................................................................................................................... 11

3.0 Results And Recommendations ........................................................................... 12 List of Tables
Table 1: Survey Locations and Limits ............................................................................... 5 Table 2: 2020 California State Highways Collision Rates ............................................. 11 Table 3: Speed Survey Recommendations .................................................................... 12 ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
1 May 2023

1.0 INTRODUCTION
This Engineering and Traffic Survey is intended to serve as the basis for the establishment and enforcement of speed limits for selected streets within the City of Manteca. This survey was developed and calculated by the City and independently collected by the private consulting firm National Data & Surveying Services.

Engineering and traffic surveys for speed limits are regularly conducted once every five (5) years by governing municipalities for the purpose of complying with Section 40802(a) of the California Vehicle Code (CVC) and the national Uniform Vehicle Code. Engineering and traffic surveys may be extended to every seven (7) years if the arresting officer has successfully completed the training requirements, and the radar device used to measure the speed has been calibrated as specified in Section 40802(c) of the CVC, or every fourteen (14) years if a registered engineer evaluates the section of the highway and determines that no significant changes in roadway or traffic conditions have occurred as specified in Section 40802(c) of the California Vehicle Code (CVC). In addition, an engineering and traffic survey should be conducted on newly constructed roadways or roadways where the roadway conditions have significantly changed.

1.1 Regulations and Guidelines
Division 11, Chapter 7, of the 2023 California Vehicle Code defines the California Speed Laws. Section 22352 of the CVC indicates that prima facie speed limits are 15 miles per hour (mph) at unprotected railroad grade crossings, highway intersections with site restrictions, and on any alley. In addition, the prima facie speed limit is 25 mph in residential and business districts, when approaching or passing a school building or grounds thereof or when passing a senior center or other facility primarily used by senior citizens. Division 1 of the CVC defines a business district and residence district in Section 235 and 515, respectively.
“A "business district" is that portion of a highway and the property contiguous thereto (a) upon one side of which highway, for a distance of 600 feet, 50 percent or more of the contiguous property fronting thereon is occupied by buildings in use for business, or (b) upon both sides of which highway, collectively, for a distance of 300 feet, 50 percent or more of the contiguous property fronting thereon is so occupied. A business district may be longer than the distances specified in this section if the above ratio of buildings in use for business to the length of the highway exists.”1
“A "residence district" is that portion of a highway and the property contiguous thereto, other than a business district, (a) upon one side of which highway, within 1 California Department of Motor Vehicles, California Vehicle Code, Division 1, Section 235, 2023.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
2 May 2023
a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 13 or more separate dwelling houses or business structures, or (b) upon both sides of which highway, collectively, within a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 16 or more separate dwelling houses or business structures. A residence district may be longer than one-quarter of a mile if the above ratio of separate dwelling houses or business structures to the length of the highway exists.”2
Section 22357(a) permits the establishment of speed limits greater than 25 mph based on the following text:
“Whenever a local authority determines upon the basis of an engineering and traffic survey that a speed greater than 25 miles per hour would facilitate the orderly movement of vehicular traffic and would be reasonable and safe upon any street other than a state highway otherwise subject to a prima facie limit of 25 miles per hour, the local authority may by ordinance determine and declare a prima facie speed limit of 30, 35, 40, 45, 50, 55, or 60 miles per hour or a maximum speed limit of 65 miles per hour, whichever is found most appropriate to facilitate the orderly movement of traffic and is reasonable and safe.”3 Therefore, the CVC allows local authorities to increase or decrease the prima facie limits by ordinance or resolution to appropriate limits as determined by an engineering and traffic survey. Posted speed limits not defined in the CVC must be justified by an Engineering and Traffic Survey for Speed Limits by ordinance. The CVC requires that speed surveys must be performed with the use of radar or other electronic devices at locations where speed limits are to be enforced with the use of radar. The current survey must be completed within five years as specified in Section 40802(a); seven years as specified in Section 40802(c), or fourteen years as specified in Section 40802(c), of the date of the preceding survey. A survey allowed to expire passed the valid duration of the previous survey would constitute a speed trap as defined in Sections 40802(a) and 40802(b) of the CVC:
(a) A “speed trap” is either of the following:
“(1) A particular section of a highway measured as to distance and with boundaries marked, designated, or otherwise determined in order that the speed of a vehicle may be calculated by securing the time it takes the vehicle to travel the known distance.
2 California Department of Motor Vehicles, California Vehicle Code, Division 1, Section 515, 2023. 3 California Department of Motor Vehicles, California Vehicle Code, Division 11. Chapter 7, Section 22357(a), 2023.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
3 May 2023
(2) A particular section of a highway with a prima facie speed limit that is provided by this code or by local ordinance under paragraph (1) of subdivision (b) of Section 22352, or established under Section 22354, 22357, 22358, or 22358.3, if that prima facie speed limit is not justified by an engineering and traffic survey conducted within five years prior to the date of the alleged violation, and enforcement of the speed limit involves the use of radar or any other electronic device that measures the speed of moving objects. This paragraph does not apply to a local street, road, school zone, senior zone, business activity district, or speed limit adopted under Section 22358.7 or 22358.8
(b) (1) For purposes of this section, a local street or road is one that is functionally classified as "local" on the "California Road System Maps," that are approved by the Federal Highway Administration and maintained by the Department of Transportation. It may also be defined as a "local street or road" if it primarily provides access to abutting residential property and meets the following three conditions:
(A) Roadway width of not more than 40 feet.
(B) Not more than one-half of a mile of uninterrupted length. Interruptions shall include official traffic control signals as defined in Section 445. (C) Not more than one traffic lane in each direction.
(2) For purposes of this section "school zone" means that area approaching or passing a school building or the grounds thereof that is contiguous to a highway and on which is posted a standard "SCHOOL" warning sign, while children are going to or leaving the school either during school hours or during the noon recess period. "School zone" also includes the area approaching or passing any school grounds that are not separated from the highway by a fence, gate, or other physical barrier while the grounds are in use by children if that highway is posted with a standard "SCHOOL" warning sign.”4 4 California Department of Motor Vehicles, California Vehicle Code, Division 17. Chapter 2, Section 40802, 2023.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
4 May 2023

1.2 Requirements and Methodology of an Engineering and
Traffic Study
Speed zones are primarily established to protect the public from the unreasonable behavior of reckless, unreliable, or otherwise dangerous drivers. Speed limits are generally established at or near the 85th percentile speed, which is defined as the speed at or below which 85 percent of traffic is moving. Speed limits established on this basis conform to the consensus of those who drive on the roadways as to what speed is reasonable and safe, and are not dependent on the judgment of one or a few individuals.

The Engineering and Traffic Survey, as defined in Section 627 of the CVC, must consider the prevailing speeds, collision records, pedestrian and bicycle activity, roadway traffic and roadside conditions not readily apparent to the driver. Speed zones are also established to advise motorists of road conditions or hazards, which may not be readily apparent to a reasonable driver. For this reason, a field review of related road/traffic variables is conducted which is considered in combination with the statistical data and collision history of a particular roadway segment to determine a safe and reasonable speed limit. The specific procedures used in the performance of an Engineering and Traffic Study are outlined in the California Manual on Uniform Traffic Control Devices (MUTCD) 2014 Edition Revision 6. The statistical factors used to analyze the collected speed survey data and additional factors as noted in the California MUTCD 2014 Edition Revision 6 to consider are defined in section 2.3 of this report.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
5 May 2023

2.0 SPEED SURVEY EVALUATION
One hundred and six (106) locations were evaluated by City of Manteca and included in this report. These roadway sections and limits of the sections are listed in Table 1.

Table 1: Survey Locations and Limits
NO STREET LIMIT 1 LIMIT 2
1 Airport Way Roth Rd Daisywood Dr
2 Airport Way Daisywood Dr Union Pacific Railroad (UPRR) 3 Airport Way Union Pacific Railroad (UPRR) Crom St
4 Airport Way Crom St Daniels St
5 Airport Way Daniels St Woodward Ave
6 Alameda Street Powers Ave N Main St
7 Alameda Street N Main St N Union Rd
8 Atherton Drive 3550 ft. south of Woodward
Ave
Woodward Ave
9 Atherton Drive Woodward Ave Van Ryn Ave
10 Atherton Drive Van Ryn Ave Main St
11 Atherton Drive Main St Union Rd
12 Atherton Drive Union Rd Airport Way
13 Atherton Drive Airport Way 575 ft west of Hearthsong Dr 14 Austin Road 1,500 ft. north of Yosemite Ave 1,350 ft. south of Louise Ave 15 Austin Road Yosemite Ave 2,000 ft. north of Graves Rd 16 Austin Road Moffat Blvd 1650 ft. south of Sedan Ave
17 Buena Vista Drive Woodward Ave 400 ft. south of Mono St 18 Button Avenue Yosemite Ave Cottage Ave
19 Center Street Fremont Ave Main St
20 Center Street Main St Union Rd
21 Center Street Union Rd 335 ft. west of Trevino Ave
22 Commerce Avenue Yosemite Ave Phoenix Dr
23 Cottage Avenue Louise Ave State Route 99
24 Cottage Avenue State Route 99 Yosemite Ave
25 Crestwood Avenue Lathrop Rd Northgate Dr
26 Crom Street Union Rd Airport Way
27 Daisywood Drive River Berry Dr Airport Way
28 Daniels Street Union Rd Airport Way
29 Daniels Street Airport Way McKinley Ave
30 Edison Street Powers Ave Main St
31 Elm Avenue Louise Ave Alameda St
32 Elm Avenue Alameda St Center St
33 Fishback Road Yosemite Ave Wawona St
34 Fishback Road Wawona St Daniels St
35 Fremont Avenue Alameda St Yosemite Ave
36 Grafton Street Tesoro Dr Buena Vista Dr
ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
6 May 2023
NO STREET LIMIT 1 LIMIT 2
37 Hacienda Street/Walnut
Avenue
Louise Ave Yosemite Ave
38 Heartland Drive Atherton Dr Buena Vista Dr
39 Highway 99 East Frontage
Road
1250’ north of Southland Rd Southland Rd
40 Hoyt Lane King Richard Way Northgate Dr
41 Industrial Park Drive Moffat Blvd Main St
42 Lancaster Drive Springtime Ave Main St
43 Lathrop Road Main St Union Rd
44 Lathrop Road Union Rd 1340 ft. west of Airport Way
45 Locust Avenue Yosemite Ave Mission Ridge Dr
46 London Avenue Lathrop Rd Nicol Way
47 Louise Avenue 1350 ft. east of Pestana Ave Cottage Ave 48 Louise Avenue Cottage Ave Main St
49 Louise Avenue Main St Union Rd
50 Louise Avenue Union Rd 2550 ft. west of Airport Way
51 Main Street Louise Ave Lathrop Rd
52 Main Street Louise Ave Alameda St
53 Main Street Alameda St Wetmore St
54 Main Street Wetmore St Atherton Dr
55 Main Street Woodward Ave Sedan Ave
56 Mission Ridge Drive Main St Union Rd
57 Moffat Boulevard Austin Rd Powers Ave
58 Moffat Boulevard Powers Ave Main St
59 Mono Street Pillsbury Rd Springfield Dr
60 Nehemiah Drive 1275 ft. east of Pestana Ave Button Ave 61 North Street Lovell Way Cottage Ave
62 North Street Cottage Ave Main St
63 North Street Main St Elm Ave
64 Northgate Drive Main St Union Rd
65 Northgate Drive Union Rd Airport Way
66 Northwoods Avenue Lovell Way Yosemite Ave
67 Oleander Avenue 775 ft. south of Sephos St Red Pheasant Ln 68 Peach Avenue 530 ft. west of Macedo St 135 ft. east of Al Fonseca Ln 69 Pestana Avenue 120 ft. north of Pin Oak Ct Louise Ave 70 Pestana Avenue Louise Ave Yosemite Ave
71 Phoenix Drive Commerce Ct Spreckels Ave
72 Pillsbury Road Woodward Ave 375 ft. south of Mono St 73 Powers Avenue North St Moffat Blvd
74 Primavera Avenue Northgate Dr Nicol Way
75 Roth Road Intermodal Way Airport Way
76 Southland Road Mitchell Rd Highway 99 E Frontage Rd
77 Spreckels Avenue Yosemite Ave Moffat Blvd
ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
7 May 2023
NO STREET LIMIT 1 LIMIT 2
78 Tannehill Drive Main St Atherton Dr
79 Tesoro Drive/Sereno Drive Atherton Dr Atherton Dr
80 Thomas Street Winters Dr Fishback Rd
81 Trailwood Avenue Northgate Dr Louise Ave
82 Union Road Shady Pines St Lathrop Rd
83 Union Road Lathrop Rd Louise Ave
84 Union Road Louise Ave Center St
85 Union Road Center St Wawona St
86 Union Road Wawona St 400 ft. south of Sephos St
87 Van Ryn Avenue Industrial Park Dr Woodward Ave
88 Vasconcellos Avenue Louise Ave 545 ft. south of Serene Way 89 Wawona Street Main St Union Rd
90 Wawona Street Union Rd Airport Way
91 Wellington Avenue Atherton Dr Woodward Ave
92 Wetmore Street Main St Mellon Ave
93 Winters Drive Yosemite Ave Wawona St
94 Winters Drive Wawona St Daniels St
95 Woodward Avenue Moffat Blvd Main St
96 Woodward Avenue Main St Union Rd
97 Woodward Avenue Union Rd Airport Way
98 Woodward Avenue Airport Way McKinley Ave
99 Woodward Avenue McKinley Ave South Woodward Ave
100 South Woodward Avenue Woodward Ave Williamson Rd
101 Yosemite Avenue State Route 99 Powers Ave
102 Yosemite Avenue Powers Ave Main St
103 Yosemite Avenue Main St El Portal Ave
104 Yosemite Avenue El Portal Ave Winters Dr
105 Yosemite Avenue Winters Dr Union Pacific Railroad (UPRR) 106 Main Street E Atherton Dr E Woodward Ave
ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
8 May 2023

2.1 Field Review
Speed data was collected using manual radar surveys performed by a sub-consultant to City of Manteca, NDS – National Data & Surveying Services and City staff. Each of the radar speed checks were made from an inconspicuously parked, unmarked vehicle. An effort was made to ensure that the presence of the vehicle in no way affected the speed of the traffic being surveyed. Field information from these speed surveys and other roadway characteristics were recorded on field data forms and later coded into engineering software for analysis purposes. Chapter 2B of the California MUTCD 2014 Edition Revision 6 indicates that it is desirable to have a minimum sample of 100 vehicles for a speed zone survey for an arterial street. This may result in excessive survey periods for low volume roadways, but a survey should not contain less than 50 vehicles. In addition, average daily traffic volumes (ADT) were collected at all the locations.

Examples of the field data collected for the purposes of analyzing related roadway characteristics as they pertain to the determination of appropriate speed limits are listed below:

1. Segment length and width;

2. Traffic flow characteristics;

3. Number of lanes and other channelization/striping factors;

4. Frequency of intersections, driveways, on-street parking, bike lanes;

5. Locations of stop signs, traffic signals, and other regulatory traffic control devices;

6. Obstructions to driver/pedestrian visibility;

7. Land use and proximity of schools, parks/recreation areas and senior centers; and,

8. Any other unusual conditions or hazards not readily apparent to the driver.

The results of the field review for related roadway and traffic variables are summarized in the Engineering and Traffic Survey forms included in the Appendix.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
9 May 2023

2.2 Statistical Analysis Factors
Significant factors used to analyze the collected survey data are summarized below:

1. 85th Percentile Speed. The Critical Speed, or the 85th percentile speed, is defined as that speed at or below which 85 percent of the traffic is moving. This factor is the primary guide in determining what speeds the majority of safe and reasonable drivers are traveling. Therefore, the practice is to set the speed limit to the nearest 5 mph increment from the critical speed unless other factors require a lower limit.

Speed limits set on this basis provide law enforcement officials with a means of controlling reckless or unreliable drivers who will not conform to what the majority finds reasonable.

2. The 10-mph Pace. The 10-mph Pace is the 10-mph increment range, which contains the largest number of recorded vehicles. The pace is a measure of the dispersion of speeds within the sample surveyed. Speed limits should normally be set to fall within the 10-mph pace. However, conditions not readily apparent to the driver or adhering to State mandated limits such as in Residence Districts may require setting speed limits below the 10-mph pace.

3. 50th Percentile Speed. The Median Speed, or 50th Percentile Speed, represents the mid-point value within the range of recorded speeds for a particular roadway location. In other words, 50 percent of the vehicles travel faster than and 50 percent travel slower than, the median speed. This value is another measure of the central tendency of the vehicle speed distribution. Typically speed limits should not be set below the 50th Percentile Speed, since it would result in greater than 50- percent of the drivers exceeding the speed limit.

4. Percent of Vehicles in Pace Speed. The percent of vehicles in the 10-mph pace speed is an indication of the grouping of vehicular speeds. Ideally, if all vehicles were traveling at or about the same speed, there would be a reduced likelihood of vehicular collisions. In speed limit analysis, the higher the percent of vehicles within the pace speed, the more favorable the speed distribution. The percent of the 10- mph pace is often between 60 and 90 percent.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
10 May 2023

2.3 California MUTCD and CVC Guidance
Based on the California MUTCD 2014 Edition Revision 6 and CVC sections 22357 and 22358.6, speed limits “shall be established at the nearest 5 mph increment of the 85thpercentile speed of free-flowing traffic.”5 In matching existing conditions with the traffic safety needs of the community, engineering judgment may reduce the posted speed limit by 5 mph due to specific factors such as road characteristics, the pace speed, roadside development and environment, pedestrian activity, and collision history. Alternatively, the California MUTCD 2014 Edition Revision 6 states that "for cases in which the nearest 5 mph increment of the 85th- percentile speed would require a rounding up, then the speed limit may be rounded down to the nearest 5 mph increment below the 85th-percentile speed, if no further reduction is used."5
5 California Department of Transportation, 2014 California MUTCD, Chapter 2B, page 134, 7 November 2014.

ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
11 May 2023

2.4 Collision History
The Engineering and Traffic Survey forms summarize the available collision information for each of the street segments. The collision information was obtained from the UC Berkeley Traffic Injury Mapping System from January 1, 2018 to December 31, 2020. For this analysis, only collisions during the 3-year period between January 1, 2018 to December 31, 2020 were considered. Based on the number of total collisions studied over the 3-year period and ADT counts, a collision rate per million vehicle miles was calculated for each segment. To provide a general comparison of the collision rates on the segments to expected collisions rates for similar types of local roadways, the collision rates for each segment were compared to the statewide average rate listed in the 2020 Crash Data on California State Highways (road miles, travel, crashes, crash rates) as listed in Table 2.

Table 2: 2020 California State Highways Collision Rates Lane Type Total Collision Rate Per Million Vehicle Miles (3-year rates for 2018, 2019, and 2020)
2&3 Lanes 1.18
4 lanes (undivided highway) 1.46
4 lanes (divided highway) 1.10
ATTACHMENT 4
City of Manteca
Engineering and Traffic Survey for Speed Limits
12 May 2023

3.0 RESULTS AND RECOMMENDATIONS
The recommendations contained in this report are intended to establish posted speed limits. Prima facie posted speed limits attempt to advise the motorist and enforcement of the reasonable speed for a particular section of roadway for the prevailing conditions.

The Engineering and Traffic Survey forms, presented in the Appendix, illustrate the results of a thorough evaluation of the available data and indicate a recommended speed limit for each of the street segments surveyed. A summary of the data analysis, along with recommended speed limits can be found in Table 3.

Table 3: Speed Survey Recommendations
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
1 Airport Way
between Roth Rd
and Daisywood Dr
45 45 51 47 44-53 76% A 5‐mph reduction from the
85th‐percentile speed due to
fronting residential district
and the lack of continuous
bike lanes and Sidewalks.
2 Airport Way
between Daisywood
Dr and UPRR
45 40 41 37 32- 41 82% 85th-percentile speed
3 Airport Way
between UPRR and
Crom St
45 40 45 40 37-46 65%
A 5‐mph reduction from the
85th‐percentile speed due to
fronting residential district,
and consistency with
adjacent segments.
4 Airport Way
between Crom St
and Daniels St
40 40 45 41 38-47 77%
A 5‐mph reduction from the
85th‐percentile speed due to
fronting residential
5 Airport Way
between Daniels St
and Woodward Ave
40 40 41 36 31-40 70% 85th-percentile speed
6 Alameda Street
between Powers Ave
and N Main St
25 25 33 29 23-32 82% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC.

A speed limit of 25 mph is
recommended.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
13 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
7 Alameda Street
between N Main St
and N Union Rd
25 25 29 26 21-30 93% 85th-percentile speed
rounded down to the nearest
5mph increment per CVC
Section 22358.6(c). No
further reduction is allowed.
8 Atherton Drive
between 3550 ft. south
of Woodward Ave and
Woodward Ave
45 45 49 44 41-50 77% 85th-percentile speed
rounded down to the nearest
5mph increment per CVC
Section 22358.6(c). No
further reduction is allowed.
9 Atherton Drive
between Woodward
Ave and Van Ryn Ave
45 45 52 46 41-50 71%
A 5-mph reduction from the 85thpercentile speed due to proximity to apartment buildings and the
lack of bike lanes.
10 Atherton Drive
between Van Ryn Ave
and Main St
45 45 51 46 42-51 71%
A 5-mph reduction from the 85thpercentile speed due to proximity to apartment buildings and the
lack of continuous bike lanes.
11 Atherton Drive
between Main St and
Union Rd
45 45 50 45 42-51 68%
A 5-mph reduction from the
85th-percentile speed due to
proximity to school and park,
and the lack of a bike lane.
12 Atherton Drive
between Union Rd
and Airport Way
35 WB /
45 – 35
EB
45 50 45 40-49 70%
A 5-mph reduction from the 85thpercentile speed due to the pace speed, collision rate exceeding
State average collision rate, and
proximity to park.
13 Atherton Drive
between Airport
Way and 575 ft west
of Hearthsong Dr
45 45 49 44 40-49 68% 85th-percentile speed
rounded down to the nearest
5mph increment per CVC
Section 22358.6(c). No
further reduction is allowed.
14 AUSTIN ROAD
between 1,500 ft.
north of Yosemite
Ave to 1,350 ft.
south of Louise Ave
45 45 52 47 43-52 73% A 5-mph reduction from the
85th-percentile speed due to
the fronting residential.
15 Austin Road
between Yosemite
Ave and 2,000 ft.
north of Graves Rd
40 40 47 44 38-47 81% A 5-mph reduction from the
85th-percentile speed due
to the fronting residential
district.
16 Austin Road between
Moffat Blvd and 1650
ft. south of Sedan Ave
55 55 60 54 49-58 59%
A 5-mph reduction from the 85thpercentile speed due to the fronting residential district
and pace speed
ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
14 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
17 Buena Vista Drive
between Woodward
Ave and to 400 ft.
south of Mono St
25 25 36 33 27-36 89% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
18 Button Avenue
between Yosemite Ave
and Cottage Ave
40 40 47 42 38-47 74% A 5-mph reduction from the
85th-percentile speed due to
proximity to school and the
lack of continuous bike lanes.
19 Center Street
between Fremont Ave
and Main St
30 30 36 31 26-35 75% A 5-mph reduction from the 85thpercentile speed due to the collision rate exceeding State
average, fronting residential
district, and school crossing.
20 Center Street
between Main St and
Union Rd
30 30 37 33 28-37 78% A 5-mph reduction from the 85thpercentile speed due to the collision rate exceeding State
average, fronting residential
district, and school crossing.
21 Center Street
between Union Rd
and to 335 ft. west of
Trevino Ave
25 25 32 28 23-32 83% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
22 Commerce Avenue
between Yosemite Ave
and Phoenix Dr
30 30 32 27 22-31 73% 85th-percentile speed
23 Cottage Avenue
between Louise
Ave and State
Route 99
40 40 45 40 36-45 79% A 5-mph reduction from the 85thpercentile speed due to uncontrolled crosswalk, the
collision rate exceeding the
expected rate, and the lack of
bike lanes.
24 Cottage Avenue
between State
Route 99 and
Yosemite Ave
30 30 37 32 28-37 82% A 5-mph reduction from the 85thpercentile speed due to uncontrolled crosswalk, the
fronting residential district, and
the lack of bike lanes.
25 Crestwood Avenue
between Lathrop Rd
and Northgate Dr
30 30 37 34 29-38 82% A 5-mph reduction from the 85thpercentile speed due to the fronting residential district and
proximity to park.
26 Crom Street between
Union Rd and Airport
Way
35 35 35 32 28-37 83% 85th-percentile speed
ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
15 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
27 Daisywood Drive
between River Berry
Dr and Airport Way
30 30 32 28 23-32 88% 85th-percentile speed
28 Daniels Street
between Union Rd
and Airport Way
30 30 37 34 29-38 84% A 5-mph reduction from the 85thpercentile speed due to the fronting residential district and
proximity to school.
29 Daniels Street
between Airport Way
and McKinley Ave
35 35 42 36 32-41 65% A 5-mph reduction from the 85thpercentile speed due to the lack of continuous bike lanes.
30 Edison Street
between Powers
Ave and Main St
25 25 32 28 24-33 87% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
31 Elm Avenue between
Louise Ave and
Alameda St
25 25 31 28 23-32 87% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
32 Elm Avenue between
Alameda St and
Center St
25 25 32 29 23-32 90% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
33 Fishback Road
between Yosemite Ave
and Wawona St
35 35 42 37 32-41 66% A 5-mph reduction from the 85thpercentile speed due to fronting residential district, existing
school crossing, proximity to
school, and the lack of bike
lanes.
34 Fishback Road
between Wawona St
and Daniels St
30 30 35 31 26-35 82% A 5-mph reduction from the
85th-percentile speed due to
fronting residential district.
35 Fremont Avenue
between Alameda St
and Yosemite Ave
25 25 32 28 23-32 84% A 5-mph reduction from the
85th-percentile speed due to
fronting residential district,
uncontrolled crosswalk, and
proximity to school.
36 Grafton Street
between Tesoro Dr
and Buena Vista Dr
25 25 32 26 21-30 72% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
16 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
37 Hacienda
Street/Walnut
Avenue between
Louise Ave and
Yosemite Ave
25 25 35 30 24-33 76% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
38 Heartland Drive
between Atherton
Dr and Buena Vista
Dr
25 25 33 29 25-34 77% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
39 Highway 99 East
Frontage Road
between 1250’ north
of Southland and
Southland Rd
40 40 42 35 32-41 57% 85th-percentile speed
40 Hoyt Lane between
King Richard Way and
Northgate Dr
25 25 32 28 23-32 70% A 5-mph reduction from the 85thpercentile speed due to fronting residential district, uncontrolled
crosswalk, and proximity to
school.
41 Industrial Park
Drive between
Moffat Blvd and
Main St
35 35 42 38 33-42 84% A 5-mph reduction from the
85th-percentile speed due to
uncontrolled crosswalk and
the lack of continuous bike
lanes and sidewalks.
42 Lancaster Drive
between Springtime
Ave and Main St
25 25 33 28 24-33 72% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
43 Lathrop Road
between Main St and
Union Rd
45 45 47 42 37-46 69%
85th-percentile speed
44 Lathrop Road
between Union Rd
and 1340 ft. west of
Airport Way
45 45 47 42 38-47 68%
85th-percentile speed
45 Locust Avenue
between Yosemite Ave
and Mission Ridge Dr
25 25 35 30 27-36 81% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
17 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
46 London Avenue
between Lathrop Rd
and Nicol Way
25 25 35 30 26-35 79% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
47 Louise Avenue
between 1350 ft. east
of Pestana Ave and
Cottage Ave
40 40 47 42 38-47 78% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.
48 Louise Avenue
between Cottage
Ave and Main St
40 40 47 43 38-47 82% A 5-mph reduction from the 85thpercentile speed due to fronting residential district and the lack of
continuous bike lanes and
sidewalks.
49 Louise Avenue
between Main St and
Union Rd
40 40 44 40 36-45 86% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
50 Louise Avenue
between Union Rd
and 2550 ft. west of
Airport Way
40 40 46 40 35-44 71% A 5-mph reduction from the 85thpercentile speed due to pace speed.
51 Main Street between
Louise Ave and
Lathrop Rd
40 40 44 41 36-45 85% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
52 Main Street between
Louise Ave and
Alameda St
40 40 41 37 31-40 75%
85th-percentile speed
53 Main Street
between Alameda St
and Wetmore St
30 30 35 30 27-36 86% A 5-mph reduction from the 85thpercentile speed due to uncontrolled crosswalk, and the
lack of continuous bike lanes
north of Yosemite Ave..
54 Main Street between
Wetmore St to
Atherton Dr
35 35 42 38 33-42 83% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.
55 Main Street
between Woodward
Ave and Sedan Ave
SB 40
NB 40-
45 40 46 41 35-44 67% A 5-mph reduction from the 85thpercentile speed due to pace speed and fronting residential
district.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
18 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
56 Mission Ridge
Drive between Main
St and Union Rd
30 30 37 33 29-38 85% A 5-mph reduction from the 85thpercentile speed due to fronting residential district and proximity to
park.
57 Moffat Boulevard
between Austin Rd
and Powers Ave
45 45 49 44 38-47 79% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
58 Moffat Boulevard
between Powers Ave
and Main St
40 40 46 41 35-44 67% A 5-mph reduction from the 85thpercentile speed due to pace speed, uncontrolled crosswalk,
and pedestrians crossing the road
to access transit center.
59 Mono Street between
Pillsbury Rd and
Springfield Dr
None 25 34 28 24-33 62% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
60 Nehemiah Drive
between 1275 ft. east
of Pestana Ave and
Button Ave
25 25 33 28 25-34 77% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
61 North Street
between Lovell
Way and Cottage
Ave
25 25 30 27 21-30 83% A 5-mph reduction from the 85thpercentile speed due to fronting residential district, uncontrolled
crosswalk, and the collision rate
exceeding expected collisions
rate.
62 North Street between
Cottage Ave and Main
St
30 30 35 32 27-36 90% A 5-mph reduction from the 85thpercentile speed due to fronting residential district, uncontrolled
crosswalk, and lack of continuous
bike lane.
63 North Street between
Main St and Elm Ave
30 30 35 32 27-36 88% A 5-mph reduction from the 85thpercentile speed due to fronting residential district and lack of a
bike lane.
64 Northgate Drive
between Main St
and Union Rd
35 35 42 38 34-43 82% A 5-mph reduction from the 85thpercentile speed due to fronting residential district, existing
school crossing, proximity to
school, and the lack of a bike
lane.
65 Northgate Drive
between Union Rd
and Airport Way
25 25 33 29 24-33 80% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
19 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
66 Northwoods
Avenue between
Lovell Way and
Yosemite Ave
25 25 30 26 22-31 86% A 5-mph reduction from the 85thpercentile speed due to fronting residential district north of Mcnary
Cir and lack of a bike lane.
67 Oleander Avenue
between 775 ft. south
of Sephos St and Red
Pheasant Ln
None 25 36 30 25-34 59% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
68 Peach Avenue
between 530 ft. west
of Macedo St and 135
ft. east of Al Fonseca
Ln
35 35 38 34 29-38 61% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
69 Pestana Avenue
between 120 ft. north
of Pin Oak Ct and
Louise Ave
25 25 36 31 27-36 78% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
70 Pestana Avenue
between Louise Ave
and Yosemite Ave
30 30 37 34 28-37 79% A 5-mph reduction from the
85th-percentile speed due to
the fronting residential district.
71 Phoenix Drive
between Commerce
Ct and Spreckels Ave
30 30 34 30 26-35 74% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
72 Pillsbury Road
between Woodward
Ave and 375 ft.
south of Mono St
25 25 38 33 28-37 72% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
73 Powers Avenue
between North St and
Moffat Blvd
25 25 29 25 20-29 87% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
74 Primavera Avenue
between Northgate Dr
and Nicol Way
25 25 36 31 26-35 66% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
75 Roth Road between
Intermodal Way and
Airport Way
45 45 45 37 30-39 57%
85th-percentile speed
ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
20 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
76 Southland Road
between Mitchell Rd
and Highway 99 E
Frontage Rd
45 45 50 44 40-49 67% A 5-mph reduction from the 85thpercentile speed due to pace speed and fronting residential
district.
77 Spreckels Avenue
between Yosemite
Ave and Moffat Blvd
40 40 41 35 29-38 61%
85th-percentile speed
78 Tannehill
Drive between
Main St and
Atherton Dr
25 25 38 32 25-34 65% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
79 Tesoro Drive/Sereno
Drive between
Atherton Dr and
Atherton Dr
25 25 35 31 26-35 81% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
80 Thomas Street
between Winters Dr
and Fishback Rd
30 30 32 28 23-32 78%
85th-percentile speed
81 Trailwood Avenue
between Northgate Dr
and Louise Ave
25 25 35 30 24-33 75% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
82 Union Road
between Shady
Pines St and Lathrop
Rd
45 45 49 44 36-45 66% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
83 Union Road
between Lathrop
Rd and Louise Ave
40 40 44 40 35-44 75% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction is
allowed.
84 Union Road between
Louise Ave and Center
St
40 40 41 37 32-41 70%
85th-percentile speed
85 Union Road between
Center St and
Wawona St
35 35 42 39 34-43 88% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
21 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
86 Union Road
between
Wawona St and
400 ft. south of
Sephos St
NB 35-
40 SB 40
35 41 36 32-41 75% A 5-mph reduction from the 85thpercentile speed due to fronting residential district and the existing
uncontrolled crosswalks.
87 Van Ryn Avenue
between Industrial
Park Dr and
Woodward Ave
35 35 41 36 32-41 78% A 5-mph reduction from the 85thpercentile speed due to lack of bike lanes.
88 Vasconcellos
Avenue between
Louise Ave and 545 ft.
south of Serene Way
25 25 39 35 30-39 76% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
89 Wawona Street
between Main St and
Union Rd
25 25 36 33 27-36 80% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
90 Wawona Street
between Union Rd
and Airport Way
25 25 38 32 27-36 74% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
91 Wellington Avenue
between Atherton Dr
and Woodward Ave
25 25 37 32 28-37 70% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
92 Wetmore Street
between Main St and
Mellon Ave
30 35 39 32 28-37 65% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction
is allowed.
93 Winters Drive
between Yosemite
Ave and Wawona St
35 35 36 32 27-36 75%
85th-percentile speed
94 Winters Drive
between Wawona St
and Daniels St
25 25 37 32 27-36 77% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
95 Woodward Avenue
between Moffat Blvd
and Main St
45 45 48 43 39-48 69% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction
is allowed.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
22 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
96 Woodward
Avenue between
Main St and Union
Rd
45 45 50 45 41-50 75% A 5-mph reduction from the 85thpercentile speed due to the existing school crossing and the
lack of bike lanes.
97 Woodward
Avenue between
Union Rd and
Airport Way
30 30 37 34 30-39 86% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.
98 Woodward Avenue
between Airport Way
and McKinley Ave
35 County
None City 35 42 39 34-43 78% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.
99 Woodward
Avenue between
McKinley Ave and
South Woodward
Ave
None 45 52 46 41-50 63% A 5-mph reduction from the 85thpercentile speed to be within 10 mph of adjacent segments, and
due to the lack of bike lanes.
100
South Woodward
Avenue between
Woodward Ave and
Williamson Rd
35 35 41 35 31-40 68% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.
101
Yosemite
Avenue between
State Route 99
and Powers Ave
35 35 41 37 33-42 85% A 5-mph reduction from the 85thpercentile speed due to fronting residential and Commercial
district and proximity to school.
102
Yosemite Avenue
between Powers Ave
and Main St
25 25 29 26 22-31 93% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction
is allowed.
103
Yosemite Avenue
between Main St and
El Portal Ave
25 25 35 31 27-36 87% This roadway meets the
requirements of Section 515 "
Residence District" of the CVC. A
speed limit of 25 mph is
recommended.
104
Yosemite Avenue
between El Portal Ave
and Winters Dr
35 35 39 37 33-42 94% 85th-percentile speed rounded
down to the nearest 5mph
increment per CVC Section
22358.6(c). No further reduction
is allowed.

ATTACHMENT 4
Table 3, continued: Speed Survey Recommendations
City of Manteca
Engineering and Traffic Survey for Speed Limits
23 May 2023
No. Street Segment
Existing
Speed
Limit
(mph)
Recom
Speed
Limit
(mph)
85%
Speed
(mph)
Median
Speed
(mph)
10 mph
Pace
Range
(mph)
% of
Veh.

In
Pace
Justification
105
Yosemite Avenue
between Winters Dr
and Union Pacific
Railroad (UPRR)
45 45 46 41 36-45 76% 85th-percentile speed
106
Main Street between
E Atherton Dr and E
Woodward Ave
35 35 42 39 34-43 87% A 5-mph reduction from the 85thpercentile speed due to fronting residential district.

ATTACHMENT 4
Appendix
Engineering and Traffic Survey Forms
ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time: 10:50 AM
Summary Statistics Speed Number Number
25 0 28
Speed Range 26 0 24
50th percentile speed 27 0 34
85th percentile speed 28 0 24
10 mph pace speed 29 0 17
% in pace speed 30 0 16
31 0 15
32 0 14
33 0 9
34 3 5
35 4 2
36 2 4
37 2 2
38 1 1
39 1 1
40 7 0
41 7 0
42 11 0
43 8 0
44 16 0
258
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1‐2
No
Comments:

Posted Speed Limit:

Speed Justification:

No
Adjacent Land Use:

Divided Median:

Speed Limit Change:
45 mph

1.63 11

0.73 34 ‐ 59 MPH
47 MPH
62 47
46 57
56 55
54 The 85th‐percentile speed of 51 mph indicates a 50 mph speed limit. However, due to fronting residential district and the lack of continuous bike lanes and Sidewalks, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 44 mph to 53 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

Varies Bike Lanes:

State Average Rate:

Number of Lanes:
63 51 MPH
44 ‐ 53  MPH
76%
Uncontrolled Crosswalks
26 ‐ 85
59 60
61 53
51 50
49 48
52 58
64 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
11/17/22
Flat
Varies
8,470
3 Yes
Low/Med/High Density
Residential/Commercial/
Industrial/Business
Industrial Park
Concrete Median/No Median
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
258
6/28/2022
Both
10:10 AM
AIRPORT WAY ‐ Roth Rd to Daisywood Dr
45 A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district and the lack of continuous bike lanes and Sidewalks.

Clear/Dry
Total Observed
0 5
10 15
20 25
30 35
40 34 36 38 40 42 44 46 48 50 52 54 56 58
ATTACHMENT 4
LOCATION 01 - FIGURE A - AIRPORT WAY

BETWEEN ROTH RD AND DAISYWOOD DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:41:13 AM ATTACHMENT 4
LOCATION 01 - FIGURE B - AIRPORT WAY

BETWEEN ROTH RD AND DAISYWOOD DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:41:28 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 11:25 AM
Summary Statistics Speed Number Number
Total Observed 23 0 2
Speed Range 24 0 1
50th percentile speed 25 0 1
85th percentile speed 26 0 0
10 mph pace speed 27 0 0
% in pace speed 28 2 0
29 1 0
30 7 0
31 4 1
32 7 0
33 8 0
34 12 0
35 8 0
36 10 0
37 11 0
38 9 0
39 10 0
40 11 0
41 11 0
42 3 0
119
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
No
Comments:
41 MPH
Yes
32 ‐ 41  MPH
82%
Speed Limit Change:
28 ‐ 51 MPH
37 MPH
TOTAL
56 57
58 59
61 60

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
119
6/28/2022
Both
10:15 AM
AIRPORT WAY ‐ Daisywood Dr to UPRR
43 Posted Speed Limit: 45 mph
Speed Justification: 85th‐percentile speed
12 1.16
62 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
11/17/22
Flat
None
8,945
3 1.06
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐ percentile speed, it is recommended that the posted speed limit be decreased to 40 mph. 48 47
46 45
44 50
49 55
54 53
52 51
30 ‐ 90
Varies Bike Lanes:

Expected Collisions Rate:

Adjacent Land Use:

Yes
TWLTL/No Median/Concrete Median
Low/High Density
Residential/Commercial/
Industrial/Business
Industrial Park
Divided Median:

Uncontrolled Crosswalks
Number of Lanes:
0 2
4 6
8 10
12 14
28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 ATTACHMENT 4
LOCATION 02 - FIGURE A - AIRPORT WAY

BETWEEN DAISYWOOD DR AND UPRR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:41:48 AM ATTACHMENT 4
LOCATION 02 - FIGURE B - AIRPORT WAY

BETWEEN DAISYWOOD DR AND UPRR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:42:08 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date Weather: Clear/Dry
Begin Time: End Time: 3:55 PM
Summary Statistics Speed Number Number
Total Observed 23 0 10
Speed Range 24 0 8
50th percentile speed 25 0 6
85th percentile speed 26 0 5
10 mph pace speed 27 0 3
% in pace speed 28 0 0
29 3 4
30 2 0
31 5 0
32 3 1
33 3 1
34 6 0
35 5 0
36 4 0
37 8 0
38 7 0
39 7 0
40 8 0
41 6 0
42 8 0
113
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Comments:

Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 45 mph indicates a 45 mph speed limit. However, due to fronting residential district, and consistency with adjacent segments, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 37 mph to 46 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit be decreased to 40 mph.

TWLTL/No Median
Low Density
Residential/Commercial/Co
mmercial Mixed Use/
Public/Quasi Public

0.83 10

1.13 26 ‐ 67
Varies Bike Lanes:

Expected Collisions Rate:
29 ‐ 53 MPH
62 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
11/17/22
Flat
Varies
9,729
3 Yes
61 60
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
113
7/5/2022
Both
2:20 PM
AIRPORT WAY ‐ UPRR to Crom St
43 Posted Speed Limit: 45 mph
Speed Limit Change Yes
Speed Justification:
53 52
51 40 MPH
45 MPH
37 ‐ 46  MPH
65%
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district, and consistency with adjacent segments.

Number of Lanes: Adjacent Land Use:
44 50
49 48
47 46
56 57
58 59
45 55
54 0
2 4
6 8
10 12
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ATTACHMENT 4
LOCATION 03 - AIRPORT WAY

BETWEEN UPRR AND CROM ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:42:28 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 10:10 AM
Summary Statistics Speed Number Number
Total Observed 23 0 15
Speed Range 24 0 5
50th percentile speed 25 0 6
85th percentile speed 26 0 4
10 mph pace speed 27 0 4
% in pace speed 28 0 2
29 1 1
30 0 2
31 0 2
32 0 0
33 3 0
34 4 1
35 3 0
36 6 0
37 0 0
38 7 0
39 10 0
40 8 0
41 12 0
42 11 0
107
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 45 mph indicates a 45 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph.

Speed Justification:

Number of Lanes: Adjacent Land Use:
61 60

1.25 24

1.14 26 ‐ 115
Bike Lanes:

TWLTL/No Median
Expected Collisions Rate:

Devided Median:
62 1.18 c/mvm
29 ‐ 54 MPH
41 MPH
None
Count Date:

ANALYSIS INFORMATION
11/17/22
Flat
None
15,384
3 Yes
Varies

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
107
6/30/2022
Both
9:00 AM
AIRPORT WAY ‐ Crom St to Daniels St
43 Posted Speed Limit: 40 mph
Speed Limit Change: No
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district. 44 50
45 56
57 55
45 MPH
38 ‐ 47  MPH
77%
TOTAL
Low/Medium/High
Density
Residential/Commercial/C
ommercial Mixed Use
49 48
47 46
54 53
52 51
58 59
0 2
4 6
8 10
12 14
16 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ATTACHMENT 4
LOCATION 04 - FIGURE A - AIRPORT WAY

BETWEEN CROM ST AND DANIELS ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:42:48 AM ATTACHMENT 4
LOCATION 04 - FIGURE B - AIRPORT WAY

BETWEEN CROM ST AND DANIELS ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:43:13 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: ATD
Date: Weather: Clear/Dry
Begin Time: End Time: 10:45 AM
Summary Statistics Speed Number Number
Total Observed 23 0 4
Speed Range 24 0 3
50th percentile speed 25 0 2
85th percentile speed 26 0 2
10 mph pace speed 27 2 1
% in pace speed 28 2 0
29 3 1
30 5 0
31 9 0
32 6 0
33 8 0
34 7 0
35 9 0
36 12 0
37 9 0
38 8 0
39 8 0
40 6 0
41 7 0
42 3 0
117
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1
No
No
Comments:
56 57
58 59
45 55
54 53
52 51
44 50
49 48
47 46
36 MPH
41 MPH
31 ‐ 40  MPH
70%

VEHICLE SPEED DATA
27 ‐ 49 MPH

RECOMMENDED SPEED LIMIT
Speed
40 MPH
117
6/29/2022
Both
10:00 AM
AIRPORT WAY ‐ Daniels St to Woodward Ave
43 Posted Speed Limit: 40 mph
Speed Limit Change: No
Speed Justification: 85th‐percentile speed
62 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
11/17/22
Flat
None
21,170
3 30 ‐ 90 Yes
Uncontrolled Crosswalks
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 31 mph to 40 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 40 mph. 60 0.75
11 0.63
TOTAL
Divided Median:

Number of Lanes: Adjacent Land Use: Low/High Density
Residential/Commercial/
Business Professional
61 Varies Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 ATTACHMENT 4
LOCATION 05 - AIRPORT WAY

BETWEEN DANIELS ST AND WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:43:38 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 12:00 PM
Speed Limit Change:

Summary Statistics Speed Number Number
Total Observed 18 0 2
Speed Range 19 0 1
50th percentile speed 20 1 0
85th percentile speed 21 0 1
10 mph pace speed 22 0 0
% in pace speed 23 7 0
24 6 0
25 8 2
26 11 0
27 13 0
28 16 0
29 17 0
30 13 0
31 11 0
32 10 0
33 6 0
34 4 0
35 4 0
36 1 0
37 2 0
136
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

0.62 3

1.41 Number of Lanes: Adjacent Land Use:
40 Both Sides Bike Lanes:

Expected Collisions Rate:

Low/Medium/High
Density
Residential/Downtown/C
ommercial
Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 33 mph indicates a 35 mph speed limit. The collision rate is above the expected rate.

Since the  roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range.
20 ‐ 45 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/10/22
Flat
None
3,131
3 Yes
29 MPH
33 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
136
7/5/2022
Both
10:00 AM
ALAMEDA STREET ‐ Powers Ave to N Main St
38 Posted Speed Limit: 25 mph
No
Speed Justification: This roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code. A speed limit of 25 mph is recommended. 23 ‐ 32  MPH
82%
TOTAL
51 52
53 54
55 56
50 49
48 47
46 39
40 45
44 43
42 41
0 2
4 6
8 10
12 14
16 18
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ATTACHMENT 4
LOCATION 06 - ALAMEDA ST

BETWEEN POWERS AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:43:58 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 10:00 AM
Summary Statistics Speed Number Number
Total Observed 20 0 0
Speed Range 21 6 0
50th percentile speed 22 5 0
85th percentile speed 23 11 0
10 mph pace speed 24 9 0
% in pace speed 25 12 0
26 14 0
27 12 0
28 15 0
29 7 0
30 8 0
31 2 0
32 1 0
33 2 0
34 0 0
35 3 0
36 0 0
37 0 0
38 0 0
39 0 0
107
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

Both Sides Bike Lanes:

Expected Collisions Rate:

Divided Median:

Number of Lanes: Adjacent Land Use: Low/Medium/High
Density
Residential/Downtown/P
ark/Commercial
58 57

1.07 5

0.99 TOTAL
0 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
Varies
4,306
3 41 ‐ 46 Yes
Uncontrolled Crosswalks
The 85th‐percentile speed of 29 mph indicates a 30 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 25 mph. The 10 mph pace ranges from 21 mph to 30 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

RECOMMENDED SPEED LIMIT
Speed
25 MPH
107
7/5/2022
Both
9:00 AM
ALAMEDA STREET ‐ N Main St to N Union Rd
40 Posted Speed Limit: 25 mph
Speed Limit Change: No
Per California Vehicle Code Section 22358.6(c), speed limit is being rounded down to the nearest 5mph increment.  No further reduction is allowed.

Speed Justification:
26 MPH
29 MPH
21 ‐ 30  MPH
93%

VEHICLE SPEED DATA
21 ‐ 35 MPH 41
47 46
45 44
43 53
54 55
56 42
52 51
50 49
48 0
2 4
6 8
10 12
14 16
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
ATTACHMENT 4
LOCATION 07 - FIGURE A - ALAMEDA ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:44:13 AM ATTACHMENT 4
LOCATION 07 - FIGURE B - ALAMEDA ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:44:28 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Posted Speed Limit:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 2:05 PM
Speed Limit Change:

Summary Statistics Speed Number Number
Total Observed 21 0 8
Speed Range 22 0 11
50th percentile speed 23 0 13
85th percentile speed 24 0 15
10 mph pace speed 25 0 12
% in pace speed 26 0 6
27 0 3
28 0 7
29 0 6
30 1 4
31 0 1
32 0 3
33 0 0
34 1 6
35 2 1
36 0 1
37 1 0
38 2 0
39 4 0
40 3 0
111
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

0.45 0

0.00 26 ‐ 70
One Side Bike Lanes:

Expected Collisions Rate:
30 ‐ 56 MPH
60 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Varies
1,356
3 No
59 58

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
111
6/28/2022
Both
12:20 PM
41 45 mph
No
Speed Justification: Per California Vehicle Code Section 22358.6(c), speed limit is being rounded down to the nearest 5mph increment.  No further reduction is allowed.

ATHERTON DRIVE ‐ 3550 ft. south of Woodward Ave to Woodward Ave 44 MPH
49 MPH
41 ‐ 50  MPH
77%
TOTAL
54 55
56 57
43 53
52 51
50 49
42 48
47 46
45 44
Uncontrolled Crosswalks
The 85th‐percentile speed of 49 mph indicates a 50 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 45 mph. The 10 mph pace ranges from 41 mph to 50 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/Medium Density
Residential
0 2
4 6
8 10
12 14
16 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 ATTACHMENT 4
LOCATION 08 - ATHERTON DR

BETWEEN SOUTH END AND WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:44:43 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Posted Speed Limit:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 15:20 PM
Summary Statistics Speed Number Number
Total Observed 23 0 13
Speed Range 24 0 11
50th percentile speed 25 0 20
85th percentile speed 26 0 14
10 mph pace speed 27 0 8
% in pace speed 28 0 18
29 0 6
30 0 16
31 0 3
32 0 11
33 0 3
34 0 5
35 1 4
36 3 3
37 0 1
38 3 0
39 5 0
40 7 1
41 4 1
42 16 0
177
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 2
Concrete Median
No
Comments:
44 50
49 48
47 46
56 57
58 59
45 55
54 53
52 51
46 MPH
52 MPH
41 ‐ 50  MPH
71%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
177
6/28/2022
Both
14:20 PM
ATHERTON DRIVE ‐ Woodward Ave to Van Ryn Ave
43 45 mph
Speed Limit Change: No
A 5‐mph reduction from the 85th‐percentile speed due to proximity to apartment buildings and the lack of bike lanes.

Expected Collisions Rate:
62 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/9/22
Flat
None
2,295
3 Yes
Divided Median:

Low/High Density
Residential/Public/Quasi
Public/Business
Industrial Park
35 ‐ 61 MPH
Uncontrolled Crosswalks
The 85th‐percentile speed of 52 mph indicates a 50 mph speed limit. However, due to proximity to apartment buildings and the lack of bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 41 mph to 50 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

Speed Justification:

Number of Lanes: Adjacent Land Use:
61 60

0.88 2

0.90 65
Both Sides Bike Lanes:
0 5
10 15
20 25
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 ATTACHMENT 4
LOCATION 09 - ATHERTON DR

BETWEEN WOODWARD AVE AND VAN RYN AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:45:03 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Date: Weather: Clear/Dry
Begin Time: End Time: 10:00 AM
Summary Statistics Speed Number Number
Total Observed 25 0 15
Speed Range 26 0 16
50th percentile speed 27 0 10
85th percentile speed 28 0 9
10 mph pace speed 29 0 11
% in pace speed 30 0 5
31 0 9
32 0 4
33 2 4
34 1 5
35 1 3
36 2 2
37 3 0
38 1 1
39 2 0
40 3 0
41 7 0
42 7 0
43 10 0
44 6 0
139
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 2
No
Comments:

Speed Justification:

Number of Lanes: Adjacent Land Use:
46 52
51 50
49 48
58 59
60 61
47 57
56 55
54 53
46 MPH
51 MPH
42 ‐ 51  MPH
71%

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
139
2/15/2023
Both
9:00 AM
ATHERTON DRIVE ‐ Van Ryn Ave to Main St
45 Posted Speed Limit: 45 mph
Speed Limit Change: No
A 5‐mph reduction from the 85th‐percentile speed due to proximity to apartment buildings and the lack of continuous bike lanes.
33 ‐ 58 MPH
64 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Varies
6,308
3 Yes
63 State Average Rate:

Divided Median:
62 0.88
1 0.16
66 TOTAL
Uncontrolled Crosswalks
The 85th‐percentile speed of 51 mph indicates a 50 mph speed limit. However, due to proximity to apartment buildings and the lack of continuous bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 42 mph to 51 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

TWLTL/Concrete Median
Low/Medium/High Density
Residential/Commercial
Mixed Use
Varies Bike Lanes:
0 2
4 6
8 10
12 14
16 18
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 ATTACHMENT 4
LOCATION 10 - ATHERTON DR

BETWEEN VAN RYN AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:45:18 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 11:00 AM
Speed Limit Change:

Summary Statistics Speed Number Number
Total Observed 27 0 22
Speed Range 28 0 14
50th percentile speed 29 0 10
85th percentile speed 30 0 10
10 mph pace speed 31 0 11
% in pace speed 32 0 4
33 0 5
34 1 5
35 2 0
36 5 1
37 7 2
38 5 1
39 10 1
40 10 0
41 10 0
42 12 1
43 14 1
44 19 1
45 21 0
46 17 0
222
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 2
No
Comments:
58 48
54 53
52 51
50 49
60 61
62 63
59 57
56 55
45 MPH
50 MPH
42 ‐ 51  MPH
68%

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
222
2/15/2023
Both
10:10 AM
ATHERTON DRIVE ‐ Main St to Union Rd
47 Posted Speed Limit: 45 mph
No
Speed Justification: A 5‐mph reduction from the 85th‐percentile speed due to proximity to school and park, and the lack of a bike lane.

The 85th‐percentile speed of 50 mph indicates a 50 mph speed limit. However, due to proximity to school and park, and the lack of a bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 42 mph to 51 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Therefore, it is recommended that the posted speed limit remains at 45 mph. 34 ‐ 64 MPH
66 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Varies
7,562
3 Yes
64 Number of Lanes: Adjacent Land Use:

Devided Median:
65 1.00
5 0.60
65 Varies Bike Lanes:

State Average Rate:

TOTAL
Concrete Median
Low Density
Residential/Public/Quasi
Public/Commercial/
Commercial Mixed Use
Uncontrolled Crosswalks
0 5
10 15
20 25
34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64
ATTACHMENT 4
LOCATION 11 - FIGURE A - ATHERTON DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:45:33 AM ATTACHMENT 4
LOCATION 11 - FIGURE B - ATHERTON DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:45:48 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:
35 mph WB / 45‐35 mph EB
Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 16
Speed Range 28 0 9
50th percentile speed 29 1 6
85th percentile speed 30 1 5
10 mph pace speed 31 0 6
% in pace speed 32 0 5
33 1 5
34 0 3
35 2 0
36 2 0
37 5 0
38 5 1
39 4 0
40 7 0
41 7 0
42 10 1
43 10 0
44 16 0
45 14 0
46 14 0
156
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 2
No
Comments:

Uncontrolled Crosswalks
Low/Medium Density
Residential/Commercial/
Commercial Mixed Use

1.20 9

3.04 51 ‐ 64
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median: TWLTL/No Median/Concrete Median
29 ‐ 62 MPH
66 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Varies
2,253
3 Yes
65 64

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
156
6/30/2022
Both
2:45 PM
ATHERTON DRIVE ‐ Union Rd to Airport Way
47 3:45 PM
Posted Speed Limit:

Speed Limit Change:
45 MPH
50 MPH
40 ‐ 49  MPH
70%
TOTAL
49 59
58 57
56 55
The 85th‐percentile speed of 50 mph indicates a 50 mph speed limit. However, due to the pace speed, collision rate exceeding State average collision rate, and proximity to park, a downgrading of the speed limit by 5 mph is justified. It is recommended that the posted speed limit becomes 45 mph. The 10 mph pace ranges from 40 mph to 49 mph and the recommended speed limit falls within this range.

Yes
Speed Justification:
48 54
53 52
51 50
60 61
A 5‐mph reduction from the 85th‐percentile speed due to the pace speed, collision rate exceeding State average collision rate, and proximity to park.
62 63
0 2
4 6
8 10
12 14
16 18
29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61
ATTACHMENT 4
LOCATION 12 - FIGURE A - ATHERTON DR

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:46:03 AM ATTACHMENT 4
LOCATION 12 - FIGURE B - ATHERTON DR

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:46:18 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 10
Speed Range 28 0 8
50th percentile speed 29 0 5
85th percentile speed 30 0 3
10 mph pace speed 31 0 4
% in pace speed 32 0 3
33 0 3
34 1 2
35 2 1
36 2 0
37 4 0
38 6 0
39 4 0
40 4 0
41 6 0
42 9 0
43 11 0
44 6 0
45 6 0
46 10 0
110
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle-miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1-2 WB 2
No
Comments:
48 54
53 52
51 50
49 40 - 49 MPH
68%
TOTAL
60 61
62 63
59 58
57 56
55 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
110
6/30/2022
Both
9:00 AM
47 10:25 AM
Posted Speed Limit: 45 mph
Speed Limit Change:
85th-percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

ATHERTON DRIVE - Airport Way to 575 ft west of Hearthsong Dr 34 - 55 MPH
66 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
9/1/22
Flat
None
2,865
3 Yes
44 MPH
49 MPH
Adjacent Land Use:

Divided Median: Concrete Median/No Concrete Median
Low Density Residential/
Commercial
Uncontrolled Crosswalks
The 85th-percentile speed of 49 mph indicates a 50 mph speed limit. Based on CVC Section 22358.6(c), the 85thpercentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 45 mph. The 10 mph pace ranges from 40 mph to 49 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

No
Speed Justification:
65 64

0.82 2

0.78 60 - 80
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes:
0 2
4 6
8 10
12 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ATTACHMENT 4
LOCATION 13 - FIGURE A - ATHERTON DR

BETWEEN AIRPORT WAY AND WEST END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:46:33 AM ATTACHMENT 4
LOCATION 13 - FIGURE B - ATHERTON DR

BETWEEN AIRPORT WAY AND WEST END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:46:48 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 12
Speed Range 28 0 7
50th percentile speed 29 0 9
85th percentile speed 30 0 6
10 mph pace speed 31 0 8
% in pace speed 32 0 9
33 0 4
34 0 4
35 0 0
36 1 3
37 2 2
38 2 4
39 1 0
40 2 0
41 6 0
42 5 0
43 4 0
44 12 0
45 15 0
46 13 0
131
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:
56 55
48 54
53 52
51 50
49 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
131
2/15/2023
Both
9:00 AM
47 10:05 AM
Posted Speed Limit: 45 mph
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district.

AUSTIN ROAD ‐ 1,500 ft. north of Yosemite Ave to 1,350 ft. south of Louise Ave 66 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
2,664
3 Yes
TOTAL
Very Low/Low Density
Divided Median: Residential/Commercial
Uncontrolled Crosswalks
36 ‐ 58 MPH
47 MPH
52 MPH
43 ‐ 52  MPH
73%
Number of Lanes: Adjacent Land Use:
60 61
62 63
59 58
57 The 85th‐percentile speed of 52 mph indicates a 50 mph speed limit. However, due to the fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 43 mph to 52 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

No
Speed Justification:
65 64

1.00 0

0.00 24 ‐ 38
None Bike Lanes:

State Average Rate:
0 2
4 6
8 10
12 14
16 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 ATTACHMENT 4
LOCATION 14 - FIGURE A - AUSTIN RD

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:47:03 AM ATTACHMENT 4
LOCATION 14 - FIGURE B - AUSTIN RD

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:47:23 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 21
Speed Range 28 0 4
50th percentile speed 29 0 3
85th percentile speed 30 0 5
10 mph pace speed 31 0 2
% in pace speed 32 0 2
33 0 0
34 0 2
35 0 2
36 4 0
37 2 1
38 4 0
39 3 0
40 5 0
41 12 0
42 12 0
43 15 0
44 20 0
45 11 0
46 10 0
140
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. However, due to the fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph.

No
Speed Justification:
48 54
53 52
51 50
60 61
62 63
49 59
58 57
56 55
44 MPH
47 MPH
38 ‐ 47  MPH
81%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
140
3/20/2023
Both
9:10 AM
47 10:10 AM
Posted Speed Limit: 40 mph
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district.

AUSTIN ROAD ‐ Yosemite Ave to 2,000 ft. North of Graves Rd 36 ‐ 57 MPH
66 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
3,847
3 Yes
65 64

0.88 0

0.00 24
None Bike Lanes:

State Average Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Very Low/Low/Med/High
Density
Residential/Commercial/
Commercial Mixed
Use/Industrial
Uncontrolled Crosswalks
0 5
10 15
20 25
36 38 40 42 44 46 48 50 52 54 56
ATTACHMENT 4
LOCATION 15 - AUSTIN RD
BETWEEN YOSEMITE AVE AND 2,000 FT NORTH OF GRAVES RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:47:43 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 0 9
Speed Range 31 0 2
50th percentile speed 32 0 6
85th percentile speed 33 0 12
10 mph pace speed 34 0 6
% in pace speed 35 0 11
36 0 11
37 0 4
38 0 9
39 2 2
40 1 8
41 2 2
42 2 4
43 1 3
44 7 1
45 1 2
46 2 2
47 4 0
48 4 0
49 3 0
123
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 60 mph indicates a 60 mph speed limit. However, due to the fronting residential district and pace speed, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 49 mph to 58 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 55 mph.

No
Speed Justification:
68 67

1.15 2

0.43 24
None Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Low/Medium/High Density
Residential/Commercial/
Commercial Mixed
Use/Industrial
39 ‐ 66 MPH
54 MPH
60 MPH
49 ‐ 58  MPH
59%
63 64
65 66
62 61
60 59
58 69

1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/16/22
Flat
None
3,673
3 Yes
TOTAL
Adjacent Land Use:

Divided Median:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
55 MPH
123
6/28/2022
Both
10:15 AM
AUSTIN ROAD ‐ Moffat Blvd to 1650 ft. south of Sedan Ave 50 11:15 AM
Posted Speed Limit: 55 mph
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district and pace speed.
51 57
56 55
54 53
52 0
2 4
6 8
10 12
14 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 ATTACHMENT 4
LOCATION 16 - FIGURE A - AUSTIN RD

BETWEEN MOFFAT BLVD AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:48:03 AM ATTACHMENT 4
LOCATION 16 - FIGURE B - AUSTIN RD

BETWEEN MOFFAT BLVD AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:48:28 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Rdy
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 25 0 0
Speed Range 26 1 0
50th percentile speed 27 4 0
85th percentile speed 28 4 0
10 mph pace speed 29 7 0
% in pace speed 30 3 0
31 14 0
32 15 0
33 16 0
34 14 0
35 13 0
36 7 0
37 4 0
38 4 0
39 3 0
40 0 0
41 0 0
42 0 0
43 0 0
44 0 0
109
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park

0.92 1

0.74 44
Both Sides Bike Lanes:

Expected Collisions Rate:
26 ‐ 39 MPH
64 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/17/22
Flat
Both Sides
1,341
3 Yes
63 62

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
109
11/29/2022
Both
10:15 AM
45 11:15 AM
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 " Residence District" of the CVC. A speed limit of 25 mph is recommended.

BUENA VISTA DRIVE ‐ Woodward Ave to 400 ft. south of Mono St 33 MPH
36 MPH
27 ‐ 36  MPH
89%
TOTAL
61 47
57 56
55 54
53 Uncontrolled Crosswalks
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. The collision rate is below the expected rate.

Since the  roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
46 52
51 50
49 48
58 59
60 0
2 4
6 8
10 12
14 16
18 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
ATTACHMENT 4
LOCATION 17 - BUENA VISTA DR

BETWEEN WOODWARD AVE AND END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:48:48 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 17
Speed Range 28 0 3
50th percentile speed 29 0 4
85th percentile speed 30 0 3
10 mph pace speed 31 3 0
% in pace speed 32 0 2
33 1 0
34 5 1
35 4 2
36 8 1
37 16 1
38 11 0
39 12 0
40 27 0
41 11 0
42 18 0
43 14 0
44 21 0
45 11 0
46 14 0
210
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. However, due to proximity to school and the lack of continuous bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Therefore, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
48 54
53 52
51 50
60 61
62 63
49 59
58 57
56 55
42 MPH
47 MPH
38 ‐ 47  MPH
74%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
40 MPH
210
3/20/2023
Both
10:15 AM
BUTTON AVENUE ‐ Yosemite Ave to Cottage Ave
47 11:15 AM
Posted Speed Limit: 40 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to proximity to school and the lack of continuous bike lanes.
31 ‐ 57 MPH
66 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
3,228
3 Yes
65 64

1.00 2

0.57 26 ‐ 44
Varies Bike Lanes:

State Average Rate:

Low/High Density
Residential/Commercial/
Public/Quasi Public
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 5
10 15
20 25
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 ATTACHMENT 4
LOCATION 18 - BUTTON AVE

BETWEEN YOSEMITE AVE AND COTTAGE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:49:03 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 5
Speed Range 21 1 1
50th percentile speed 22 0 2
85th percentile speed 23 0 0
10 mph pace speed 24 3 1
% in pace speed 25 6 0
26 6 1
27 5 0
28 10 0
29 17 0
30 15 0
31 8 0
32 10 0
33 6 0
34 15 0
35 9 0
36 4 0
37 4 0
38 5 0
39 0 0
134
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

Number of Lanes: Adjacent Land Use: Downtown
Divided Median:

0.37 5

3.24 51
Both Sides Bike Lanes:

Expected Collisions Rate:
21 ‐ 46 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/4/22
Flat
Varies
3,807
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
134
7/5/2022
Both
11:30 AM
CENTER STREET ‐ Fremont Ave to Main St
40 12:30 PM
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to the collision rate exceeding State average, fronting residential district, and school crossing. 31 MPH
36 MPH
26 ‐ 35  MPH
75%
TOTAL
56 42
52 51
50 49
48 Uncontrolled Crosswalks
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. However, due to fronting residental district and school crossing, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 0
2 4
6 8
10 12
14 16
18 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ATTACHMENT 4
LOCATION 19 - CENTER ST

BETWEEN FREMONT AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:49:23 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 5
Speed Range 21 0 1
50th percentile speed 22 1 3
85th percentile speed 23 0 2
10 mph pace speed 24 1 1
% in pace speed 25 6 0
26 3 0
27 5 1
28 15 1
29 8 0
30 17 1
31 15 0
32 22 0
33 15 0
34 19 0
35 19 0
36 7 0
37 9 0
38 5 0
39 5 0
187
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:
41 47
46 45
44 43
42 28 ‐ 37  MPH
78%
TOTAL
53 54
55 56
52 51
50 49
48 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
187
7/5/2022
Both
10:15 AM
CENTER STREET ‐ Main St to Union Rd
40 11:15 AM
Posted Speed Limit: 30 mph
Clear/Dry
A 5-mph reduction from the 85th-percentile speed due to the collision rate exceeding State average, fronting residential district, and school crossing. 22 ‐ 50 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/27/22
Flat
Varies
6,668
3 Yes
33 MPH
37 MPH
Adjacent Land Use:

Divided Median:

Downtown/Low/Med/High
Density Res/Commercial/
Public/Quasi Public/
Business Professional/Park Uncontrolled Crosswalks
The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to fronting residental district and school crossing, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
58 57

1.02 9

1.21 48 ‐ 63
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes:
0 5
10 15
20 25
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ATTACHMENT 4
LOCATION 20 - FIGURE A - CENTER ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:49:38 AM ATTACHMENT 4
LOCATION 20 - FIGURE B - CENTER ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:49:53 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 0
Speed Range 19 1 0
50th percentile speed 20 2 0
85th percentile speed 21 2 0
10 mph pace speed 22 3 0
% in pace speed 23 8 0
24 12 0
25 19 0
26 17 0
27 14 0
28 19 0
29 16 0
30 18 0
31 11 0
32 11 0
33 7 0
34 6 0
35 4 0
36 3 0
37 2 0
175
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:
39 45
44 43
42 41
40 23 ‐ 32  MPH
83%
TOTAL
51 52
53 54
50 49
48 47
46 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
175
8/9/2022
Both
9:00 AM
CENTER STREET ‐ Union Rd to 335 ft. west of Trevino Ave 38 10:00 AM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 " Residence District" of the CVC.

A speed limit of 25 mph is recommended.
19 ‐ 37 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/1/22
Flat
None
4,673
3 Yes
28 MPH
32 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

High Density Residential/
Commercial/ Park
Uncontrolled Crosswalks
The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. Since the  roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
56 55

0.39 0

0.00 41
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
16 18
20 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ATTACHMENT 4
LOCATION 21 - CENTER ST

BETWEEN UNION RD AND END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:50:08 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time: 11:20 AM
Summary Statistics Speed Number Number
Total Observed 16 0 2
Speed Range 17 0 2
50th percentile speed 18 3 1
85th percentile speed 19 2 2
10 mph pace speed 20 5 1
% in pace speed 21 5 0
22 7 0
23 17 0
24 12 0
25 10 0
26 17 0
27 12 0
28 10 0
29 13 0
30 11 0
31 12 0
32 7 0
33 4 0
34 7 0
35 3 0
165
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
No
Comments:

Number of Lanes: Adjacent Land Use: Industrial/Commercial Devided Median: TWLTL

0.26 2

1.06 50 ‐ 80
Both Sides Bike Lanes:

Expected Collisions Rate:
18 ‐ 40 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
6,612
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
165
6/28/2022
Both
10:20 AM
COMMERCE AVE ‐ Yosemite Ave to Phoenix Dr
36 Posted Speed Limit: 30 mph
Clear/Dry
Speed Limit Change:
85th-percentile speed
27 MPH
32 MPH
22 ‐ 31  MPH
73%
TOTAL
38 48
47 46
45 44
Uncontrolled Crosswalks
The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. The 10 mph pace ranges from 22 mph to 31 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 30 mph.

No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
0 2
4 6
8 10
12 14
16 18
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 22 - COMMERCE AVE

BETWEEN YOSEMITE AVE AND PHOENIX DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:50:24 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time: 9:40 AM
Summary Statistics Speed Number Number
Total Observed 16 0 18
Speed Range 17 0 11
50th percentile speed 18 0 19
85th percentile speed 19 0 21
10 mph pace speed 20 0 19
% in pace speed 21 0 20
22 0 21
23 0 15
24 0 18
25 0 10
26 0 9
27 0 8
28 0 2
29 0 3
30 0 1
31 0 0
32 2 0
33 1 0
34 10 0
35 9 0
217
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/No Median
Yes
Comments:

The 85th‐percentile speed of 45 mph indicates a 45 mph speed limit. However, due to uncontrolled crosswalk, the collision rate exceeding the expected rate, and the lack of bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 36 mph to 45 mph and the recommended speed limit falls within this range.

Therefore, it is recommended that the posted speed limit remains at 40 mph.

No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
38 48
47 46
45 44
40 MPH
45 MPH
36 ‐ 45  MPH
79%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
217
7/5/2022
Both
9:00 AM
COTTAGE AVE ‐ Louise Ave to State Route 99
36 Posted Speed Limit: 40 mph
Clear/Dry
Speed Limit Change:

A 5-mph reduction from the 85th-percentile speed due to uncontrolled crosswalk, the collision rate exceeding the expected rate, and the lack of bike lanes. 32 ‐ 50 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
10,207
2 Yes
54 53

0.34 4

1.58 30 ‐ 46
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Commercial/
Public/Quasi Public Uncontrolled Crosswalks
0 5
10 15
20 25
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ATTACHMENT 4
LOCATION 23 - COTTAGE AVE
BETWEEN LOUISE AVE AND STATE ROUTE 99
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:50:44 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time: 11:35 AM
Summary Statistics Speed Number Number
Total Observed 16 0 21
Speed Range 17 0 9
50th percentile speed 18 0 7
85th percentile speed 19 0 5
10 mph pace speed 20 0 5
% in pace speed 21 0 2
22 0 4
23 0 1
24 4 2
25 0 4
26 4 2
27 7 0
28 11 0
29 17 0
30 33 0
31 25 0
32 37 0
33 15 0
34 25 0
35 25 0
265
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:

Adjacent Land Use:
44 The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to uncontrolled crosswalk, the fronting residential district, and the lack of bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

No
Speed Justification:
54 53

0.65 13

1.79 24 ‐ 56
Varies Bike Lanes:

State Average Rate:

Number of Lanes:

Uncontrolled Crosswalks
24 ‐ 46 MPH
32 MPH
37 MPH
28 ‐ 37  MPH
82%
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
10,194
3 Yes
TOTAL
Divided Median:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
265
3/20/2023
Both
11:18 AM
COTTAGE AVE ‐ State Route 99 to Yosemite Ave
36 Posted Speed Limit: 30 mph
Clear/Dry
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to uncontrolled crosswalk, the fronting residential district, and the lack of bike lanes.

Low/High Density
Residential/Commercial/
Public/Quasi Public
37 43
42 41
40 39
38 49
50 51
52 48
47 46
45 0
5 10
15 20
25 30
35 40
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ATTACHMENT 4
LOCATION 24 - COTTAGE AVE
BETWEEN STATE ROUTE 99 AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:51:04 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time: 12:10 PM
Summary Statistics Speed Number Number
Total Observed 16 0 13
Speed Range 17 0 13
50th percentile speed 18 0 8
85th percentile speed 19 0 3
10 mph pace speed 20 0 5
% in pace speed 21 0 3
22 0 0
23 0 0
24 2 0
25 2 0
26 3 0
27 4 0
28 4 0
29 8 0
30 9 0
31 14 0
32 14 0
33 13 0
34 14 0
35 16 0
148
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Comments:

Speed Justification:

Number of Lanes: Adjacent Land Use:
37 43
42 41
40 39
49 50
51 52
38 48
47 46
45 44
34 MPH
37 MPH
29 ‐ 38  MPH
82%

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
148
2/16/2023
Both
11:10 AM
CRESTWOOD AVE ‐ Lathrop Rd to Northgate Dr
36 Posted Speed Limit: 30 mph
Speed Limit Change: No
A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district and proximity to park.
24 ‐ 41 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/3/22
Flat
Both Sides
3,568
3 Yes
54 State Average Rate:

Divided Median:
53 0.51
1 0.50
65 TOTAL
Uncontrolled Crosswalks
The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to the fronting residential district and proximity to park, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 29 mph to 38 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Therefore, it is recommended that the posted speed limit remains at 30 mph.

TWLTL
Low/Medium/High
Density Residential/
Park/ Commercial
Both Sides Bike Lanes:
0 2
4 6
8 10
12 14
16 18
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
ATTACHMENT 4
LOCATION 25 - CRESTWOOD AVE

BETWEEN LATHROP RD AND NORTHGATE DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:51:24 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time: 12:05 PM
Summary Statistics Speed Number Number
Total Observed 16 0 8
Speed Range 17 0 5
50th percentile speed 18 0 4
85th percentile speed 19 0 4
10 mph pace speed 20 0 0
% in pace speed 21 0 1
22 2 0
23 0 0
24 1 0
25 5 0
26 5 0
27 3 0
28 14 0
29 12 0
30 15 0
31 11 0
32 14 0
33 13 0
34 20 0
35 11 0
148
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:
47 46
Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 35 mph.

No
Speed Justification:
54 53

0.96 2

0.85 45
Varies Bike Lanes:
49 50
51 52
48 Divided Median:
22 ‐ 41 MPH
32 MPH
35 MPH
28 ‐ 37  MPH
83%
Expected Collisions Rate:

Number of Lanes:
55 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
Both Sides
2,243
3 Yes
TOTAL
Very Low/Low/
Medium/High Density
Residental
Park/Public/Quasi Public
Adjacent Land Use:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
148
7/5/2022
Both
10:20 AM
CROM STREET ‐ Union Rd to Airport Way
36 Posted Speed Limit: 35 mph
Clear/Dry
Speed Limit Change:
85th-percentile speed
45 44
37 43
42 41
40 39
38 0
5 10
15 20
25 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ATTACHMENT 4
LOCATION 26 - FIGURE A - CROM ST

BETWEEN UNION RD AND AIRPORT WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:51:44 AM ATTACHMENT 4
LOCATION 26 - FIGURE B - CROM ST

BETWEEN UNION RD AND AIRPORT WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:51:59 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time: 11:45 AM
Summary Statistics Speed Number Number
Total Observed 16 0 1
Speed Range 17 0 2
50th percentile speed 18 0 1
85th percentile speed 19 0 0
10 mph pace speed 20 0 1
% in pace speed 21 0 0
22 1 0
23 4 0
24 5 0
25 13 0
26 13 0
27 13 0
28 12 0
29 10 0
30 8 0
31 5 0
32 5 0
33 4 0
34 2 0
35 0 0
100
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 30 mph.

No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
38 48
47 46
45 44
28 MPH
32 MPH
23 ‐ 32  MPH
88%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
100
8/9/2022
Both
10:15 AM
DAISYWOOD DR ‐ River Berry Dr to Airport Way
36 Posted Speed Limit: 30 mph
Clear/Dry
Speed Limit Change:
85th-percentile speed
22 ‐ 40 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
1,034
3 No
54 53

0.60 2

2.94 31
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park
0 2
4 6
8 10
12 14
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 27 - DAISYWOOD DR

BETWEEN RIVER BERRY DR AND AIRPORT WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:52:14 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time: 12:35 AM
Summary Statistics Speed Number Number
Total Observed 16 0 14
Speed Range 17 0 19
50th percentile speed 18 0 10
85th percentile speed 19 0 5
10 mph pace speed 20 0 4
% in pace speed 21 0 5
22 0 2
23 0 1
24 0 0
25 2 0
26 5 0
27 3 0
28 5 0
29 6 0
30 23 0
31 14 0
32 27 0
33 17 0
34 25 0
35 19 0
206
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL/No Median
No
Comments:
37 43
42 41
40 39
38 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
206
3/20/2023
Both
11:45 AM
DANIELS STREET ‐ Union Rd to Airport Way
36 Posted Speed Limit: 30 mph
Clear/Dry
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district and proximity to school.
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/1/22
Flat
Both Sides
5,408
3 Yes
TOTAL
Divided Median:

Low/Medium Density
Residential/Commercial/
Public/Quasi Public/
Business Professional Uncontrolled Crosswalks
25 ‐ 43 MPH
34 MPH
37 MPH
29 ‐ 38  MPH
84%
49 50
51 52
48 47
46 45
44 The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to the fronting residential district and proximity to school, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 29 mph to 38 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Therefore, it is recommended that the posted speed limit remains at 30 mph.

No
Speed Justification:
54 53

1.00 1

0.17 55
Both Sides Bike Lanes:

State Average Rate:

Number of Lanes: Adjacent Land Use:
0 5
10 15
20 25
30 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ATTACHMENT 4
LOCATION 28 - FIGURE A - DANIELS ST

BETWEEN UNION RD AND AIRPORT WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:52:29 AM ATTACHMENT 4
LOCATION 28 - FIGURE B - DANIELS ST

BETWEEN UNION RD AND AIRPORT WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:52:44 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time: 10:30 AM
Summary Statistics Speed Number Number
Total Observed 16 0 10
Speed Range 17 0 4
50th percentile speed 18 0 10
85th percentile speed 19 0 6
10 mph pace speed 20 0 6
% in pace speed 21 0 4
22 0 5
23 0 3
24 0 3
25 0 1
26 0 2
27 4 1
28 5 0
29 2 1
30 4 1
31 3 0
32 9 1
33 3 0
34 4 0
35 12 0
104
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 2
Concrete Median
No
Comments:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to the lack of continuous bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
Commercial/
Public/Quasi Public/
Commercial Mixed Use
38 48
47 46
45 44
36 MPH
42 MPH
32 ‐ 41  MPH
65%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
104
11/16/2022
Both
9:00 AM
DANIELS STREET ‐ Airport Way to McKinley Ave
36 Posted Speed Limit: 35 mph
Clear/Dry
Speed Limit Change:

A 5-mph reduction from the 85th-percentile speed due to the lack of continuous bike lanes.
27 ‐ 52 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/31/22
Flat
Varies
4,823
3 Yes
54 53

1.05 4

0.72 65 ‐ 90
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 2
4 6
8 10
12 14
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ATTACHMENT 4
LOCATION 29 - FIGURE A - DANIELS ST

BETWEEN AIRPORT WY AND MCKINLEY AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:52:59 AM ATTACHMENT 4
LOCATION 29 - FIGURE B - DANIELS ST

BETWEEN AIRPORT WY AND MCKINLEY AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:53:14 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Surrvey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 1
Speed Range 19 0 1
50th percentile speed 20 1 0
85th percentile speed 21 1 0
10 mph pace speed 22 5 0
% in pace speed 23 5 0
24 10 0
25 12 0
26 10 0
27 13 0
28 13 0
29 9 0
30 13 0
31 13 0
32 7 0
33 9 0
34 0 0
35 2 0
36 0 0
37 1 0
126
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. Since the roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
56 55

0.60 2

1.06 45
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes:

Uncontrolled Crosswalks
20 ‐ 39 MPH
28 MPH
32 MPH
24 ‐ 33  MPH
87%
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/4/22
Flat
None
2,870
3 Yes
TOTAL
Adjacent Land Use:

Divided Median:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
126
11/29/2022
Both
11:45 AM
EDISON STREET ‐ Powers Ave to Main St
38 13:45 PM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 " Residence District" of the CVC.

A speed limit of 25 mph is recommended.
49 48
47 46
Low/Medium/High
Density Residential/
Park/Commercial
51 52
53 54
50 39
45 44
43 42
41 40
0 2
4 6
8 10
12 14
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ATTACHMENT 4
LOCATION 30 - EDISON ST

BETWEEN POWERS AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:53:29 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 0
Speed Range 19 0 0
50th percentile speed 20 0 1
85th percentile speed 21 0 1
10 mph pace speed 22 1 0
% in pace speed 23 5 0
24 10 0
25 13 0
26 10 0
27 5 0
28 17 0
29 8 0
30 10 0
31 7 0
32 3 0
33 3 0
34 2 0
35 3 0
36 1 0
37 1 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:
39 45
44 43
42 41
40 23 ‐ 32  MPH
87%
TOTAL
51 52
53 54
50 49
48 47
46 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
101
7/5/2022
Both
2:30 PM
ELM AVE ‐ Louise Ave to Alameda St
38 3:50 PM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
22 ‐ 41 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/27/22
Flat
Varies
1,403
3 Yes
28 MPH
31 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park
Uncontrolled Crosswalks
The 85th‐percentile speed of 31 mph indicates a 30 mph speed limit. The collision rate is above the expected rate.

Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range.

Speed Limit Change: No
Speed Justification:
56 55

0.50 3

3.91 36 ‐ 45
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
16 18
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ATTACHMENT 4
LOCATION 31 - ELM AVE

BETWEEN LOUISE AVE AND ALAMEDA ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:53:44 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 1
Speed Range 19 0 0
50th percentile speed 20 0 0
85th percentile speed 21 0 0
10 mph pace speed 22 0 0
% in pace speed 23 5 0
24 7 0
25 7 0
26 12 0
27 11 0
28 9 0
29 13 0
30 13 0
31 6 0
32 10 0
33 1 0
34 2 0
35 4 0
36 2 0
37 0 0
103
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. The collision rate is above the expected rate.

Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 52
53 54
90%
TOTAL
40 50
49 48
47 46
Posted Speed Limit:

This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
29 MPH
32 MPH
23 ‐ 32  MPH
Yes
56 55

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
103
7/5/2022
Both
12:45 PM
ELM AVE ‐ Alameda St to Center St
38 2:20 PM
Clear/Dry
25 mph
Both Sides Bike Lanes:

Expected Collisions Rate:
23 ‐ 38 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
Varies
1,136
3 Uncontrolled Crosswalks

0.40 1

2.01 36 ‐ 45
Low Density Residential/
Public/Quasi Public
Number of Lanes: Adjacent Land Use:

Divided Median:
0 2
4 6
8 10
12 14
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
ATTACHMENT 4
LOCATION 32 - ELM AVE

BETWEEN ALAMEDA ST AND CENTER ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:54:04 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 9
Speed Range 19 0 10
50th percentile speed 20 0 5
85th percentile speed 21 0 7
10 mph pace speed 22 0 6
% in pace speed 23 0 3
24 0 3
25 0 3
26 1 1
27 2 2
28 2 2
29 4 0
30 6 0
31 4 1
32 8 1
33 5 0
34 8 0
35 6 0
36 11 0
37 9 0
119
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/No Median
No
Comments:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to fronting residential district, existing school crossing, proximity to school, and the lack of bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
56 55

0.50 2

1.03 24 ‐ 60
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Very Low/Low Density
Residential/Commerial/P
ark/Public/Quasi Public Uncontrolled Crosswalks
26 ‐ 52 MPH
57 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
8/18/22
Flat
None
3,531
3 Yes
37 MPH
42 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
119
6/30/2022
Both
1:30 PM
Fishback Road ‐ Yosemite Ave to Wawona St
38 2:30 PM
Posted Speed Limit: 35 mph
Clear/Dry
A 5-mph reduction from the 85th-percentile speed due to fronting residential district, existing school crossing, proximity to school, and the lack of bike lanes. 32 ‐ 41  MPH
66%
TOTAL
51 52
53 54
50 49
48 47
46 39
45 44
43 42
41 40
0 2
4 6
8 10
12 26 28 30 32 34 36 38 40 42 44 46 48 50 52
ATTACHMENT 4
LOCATION 33 - FISHBACK RD

BETWEEN YOSEMITE AVE AND WAWONA ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:54:24 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

A 5-mph reduction from the 85th-percentile speed due to fronting residential district.

Summary Statistics Speed Number Number
Total Observed 18 0 3
Speed Range 19 0 3
50th percentile speed 20 0 0
85th percentile speed 21 0 0
10 mph pace speed 22 0 1
% in pace speed 23 0 0
24 1 0
25 3 0
26 8 0
27 7 0
28 8 0
29 9 0
30 12 0
31 12 0
32 8 0
33 8 0
34 8 0
35 9 0
36 5 0
37 3 0
108
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/Concrete Median
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 52
53 54
40 50
49 48
47 46
31 MPH
35 MPH
26 ‐ 35  MPH
82%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
108
6/30/2022
Both
11:30 AM
Fishback Road ‐ Wawona St to Daniels St
38 12:45 PM
Posted Speed Limit: 30 mph
Clear/Dry
24 ‐ 42 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/18/22
Flat
Both Sides
3,673
3 Yes
56 55

0.28 1

0.89 60
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Commercial
0 2
4 6
8 10
12 14
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ATTACHMENT 4
LOCATION 34 - FISHBACK RD

BETWEEN WAWONA ST AND DANIELS ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:54:49 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 1
Speed Range 19 0 0
50th percentile speed 20 2 1
85th percentile speed 21 0 1
10 mph pace speed 22 0 1
% in pace speed 23 3 0
24 7 1
25 14 0
26 12 0
27 9 0
28 12 0
29 10 0
30 9 0
31 7 0
32 10 0
33 2 0
34 3 0
35 3 0
36 3 0
37 0 0
111
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:
39 45
44 43
42 41
40 23 ‐ 32  MPH
84%
TOTAL
51 52
53 54
50 49
48 47
46 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
111
7/6/2022
Both
9:00 AM
FREMONT AVE ‐ Alameda St to Yosemite Ave
38 10:50 AM
Posted Speed Limit: 25 mph
Clear/Dry
A 5-mph reduction from the 85th-percentile speed due to fronting residential district, uncontrolled crosswalk, and proximity to school.
20 ‐ 44 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/4/22
Flat
Varies
1,140
3 Yes
28 MPH
32 MPH
Number of Lanes: Adjacent Land Use: Low Density
Residential/Downtown/P
ublic/Quasi Public
Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. However, due to fronting residential district, uncontrolled crosswalk, and proximity to school, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
56 55

0.50 3

4.81 36 ‐ 45
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
16 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 35 - FREMONT AVE

BETWEEN ALAMEDA ST AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:55:09 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 0
Speed Range 19 1 0
50th percentile speed 20 5 0
85th percentile speed 21 6 0
10 mph pace speed 22 8 0
% in pace speed 23 8 0
24 9 0
25 10 0
26 6 0
27 7 0
28 4 0
29 5 0
30 10 0
31 6 0
32 8 0
33 4 0
34 3 0
35 1 0
36 0 0
37 0 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 21 mph to 30 mph and the recommended speed limit falls within this range. The collision rate is blow the expected rate. Therefore, it is recommended that the posted speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 A 5-mph reduction from the 85th-percentile speed due to fronting residential district. 52 Low Density Residential
53 54
40 50
49 48
47 46
26 MPH
32 MPH
21 ‐ 30  MPH
72%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
101
11/30/2022
Both
12:05 PM
GRAFTON STREET ‐ Tesoro Dr to Buena Vista Dr
38 1:35 PM
Posted Speed Limit: 25 mph
Clear/Dry
19 ‐ 35 MPH
57 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
649
3 Yes
56 55

0.68 0

0.00 40 ‐ 50
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 2
4 6
8 10
12 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
ATTACHMENT 4
LOCATION 36 - GRAFTON ST

BETWEEN TESORO DR AND BUENA VISTA DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:55:29 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 3
Speed Range 19 0 0
50th percentile speed 20 0 1
85th percentile speed 21 0 1
10 mph pace speed 22 0 1
% in pace speed 23 1 0
24 4 0
25 5 0
26 8 0
27 11 0
28 12 0
29 9 0
30 8 0
31 5 0
32 10 0
33 6 0
34 3 0
35 6 0
36 5 0
37 4 0
103
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
56 55

1.00 4

0.92 33 ‐ 40
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/Medium/High
Density
Residential/Commercial Uncontrolled Crosswalks
23 ‐ 42 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
None
3,971
3 Yes
30 MPH
35 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
103
7/5/2022
Both
12:15 PM
38 2:10 PM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.

HACIENDA STREET/WALNUT AVE ‐ Louise Ave to Yosemite Ave 24 ‐ 33  MPH
76%
TOTAL
51 52
53 54
50 49
48 47
46 39
45 44
43 42
41 40
0 2
4 6
8 10
12 14
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ATTACHMENT 4
LOCATION 37 - FIGURE A - HACIENDA AVE / WALNUT AVE

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:55:44 AM ATTACHMENT 4
LOCATION 37 - FIGURE B - HACIENDA AVE / WALNUT AVE

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:56:04 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 1 2
Speed Range 19 1 2
50th percentile speed 20 0 1
85th percentile speed 21 2 2
10 mph pace speed 22 3 0
% in pace speed 23 2 0
24 3 0
25 9 0
26 8 0
27 8 0
28 6 0
29 8 0
30 12 0
31 6 0
32 9 0
33 8 0
34 4 0
35 0 0
36 2 0
37 2 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 33 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 25 mph to 34 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
52 53
54 40
50 49
48 47
46 29 MPH
33 MPH
25 ‐ 34  MPH
77%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
101
11/29/2022
Both
1:30 PM
HEARTLAND DRIVE ‐ Atherton Dr to Buena Vista Dr
38 2:50 PM
Posted Speed Limit: 25 mph
Clear/Dry
18 ‐ 41 MPH
57 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Both Sides
694
3 Yes
56 55

0.98 0

0.00 40 ‐ 55
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park
0 2
4 6
8 10
12 14
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ATTACHMENT 4
LOCATION 38 - FIGURE A - HEARTLAND DR

BETWEEN ATHERTON DR AND BUENA VISTA DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:56:19 AM ATTACHMENT 4
LOCATION 38 - FIGURE B - HEARTLAND DR

BETWEEN ATHERTON DR AND BUENA VISTA DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:56:34 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 6
Speed Range 19 0 7
50th percentile speed 20 2 5
85th percentile speed 21 0 6
10 mph pace speed 22 1 4
% in pace speed 23 0 6
24 4 4
25 4 4
26 2 1
27 2 0
28 2 0
29 2 0
30 6 0
31 0 0
32 6 0
33 4 0
34 6 0
35 10 0
36 6 0
37 2 0
102
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
56 55

0.34 0

0.00 24 ‐ 30
None Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Commercial/Business
Professional/Medium
Density Residential Uncontrolled Crosswalks
20 ‐ 46 MPH
57 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/11/22
Flat
None
1,086
3 Yes
35 MPH
42 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
102
6/30/2022
Both
2:00 PM
38 4:00 PM
HIGHWAY 99 EAST FRONTAGE ROAD, 1250’ north of Southland to Southland Rd Posted Speed Limit: 40 mph
Clear/Dry
85th-percentile speed
32 ‐ 41  MPH
57%
TOTAL
51 52
53 54
50 49
48 47
46 39
45 44
43 42
41 40
0 2
4 6
8 10
12 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ATTACHMENT 4
LOCATION 39 - HWY 99 EAST FRONTAGE RD

BETWEEN NORTH CITY LIMIT AND SOUTHLAND RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:56:49 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 0
Speed Range 19 0 0
50th percentile speed 20 7 0
85th percentile speed 21 5 0
10 mph pace speed 22 3 0
% in pace speed 23 8 0
24 5 0
25 8 0
26 8 0
27 6 0
28 4 0
29 8 0
30 7 0
31 10 0
32 7 0
33 6 0
34 3 0
35 5 0
36 1 0
37 0 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:

Number of Lanes: Adjacent Land Use: Park/Public/Quasi Public Divided Median:

0.35 1

1.01 45
Both Sides Bike Lanes:

Expected Collisions Rate:
20 ‐ 36 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
None
2,572
3 Yes
56 55

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
101
6/28/2022
Both
9:00 AM
38 10:45 AM
HOYT LANE ‐ King Richard Way to Northgate Dr
Posted Speed Limit: 25 mph
Clear/Dry
A 5-mph reduction from the 85th-percentile speed due to fronting residential district, uncontrolled crosswalk, and proximity to school.
28 MPH
32 MPH
23 ‐ 32  MPH
70%
TOTAL
54 40
50 49
48 47
46 Uncontrolled Crosswalks
The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. However, due to fronting residential district, uncontrolled crosswalk, and proximity to school, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range. The collision rate is blow the expected rate. Therefore, it is recommended that the posted speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 52
53 0
2 4
6 8
10 12
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
ATTACHMENT 4
LOCATION 40 - HOYT LN

BETWEEN KING RICHARD WY AND NORTHGATE DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:57:09 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 31
Speed Range 21 0 21
50th percentile speed 22 0 28
85th percentile speed 23 0 7
10 mph pace speed 24 0 4
% in pace speed 25 0 1
26 0 5
27 0 3
28 0 3
29 0 2
30 2 1
31 5 1
32 11 0
33 14 0
34 11 0
35 29 0
36 25 0
37 17 0
38 35 0
39 26 0
282
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
Yes
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to uncontrolled crosswalk and the lack of continous bike lanes and sidewalks, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 33 mph to 42 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 Industrial/Commercial/
Commercial Mixed Use
54 55
56 42
52 51
50 49
48 38 MPH
42 MPH
33 ‐ 42  MPH
84%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
282
3/20/2023
Both
1:30 PM
40 2:05 PM
INDUSTRIAL PARK DRIVE ‐ Moffat Blvd to Main St
Posted Speed Limit: 35 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to uncontrolled crosswalk and the lack of continuous bike lanes and sidewalks.
30 ‐ 51 MPH
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
Varies
10,430
3 Yes
58 57

0.94 7

0.65 71
Varies Bike Lanes:

State Average Rate:

Number of Lanes: Adjacent Land Use:

Divided Median: TWLTL/Concrete Median
0 5
10 15
20 25
30 35
40 30 32 34 36 38 40 42 44 46 48 50
ATTACHMENT 4
LOCATION 41 - INDUSTRIAL PARK DR

BETWEEN MOFFAT BLVD AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:57:24 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 1
Speed Range 15 0 1
50th percentile speed 16 1 1
85th percentile speed 17 1 1
10 mph pace speed 18 0 2
% in pace speed 19 2 2
20 2 1
21 3 0
22 5 0
23 6 0
24 8 0
25 4 0
26 7 0
27 5 0
28 12 0
29 9 0
30 11 0
31 6 0
32 6 0
33 8 0
105
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:
35 41
40 39
38 37
36 24 ‐ 33  MPH
72%
TOTAL
47 48
49 50
46 45
44 43
42 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
105
7/7/2022
Both
11:05 AM
34 12:05 AM
LANCASTER DRIVE ‐ Springtime Ave to Main St
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 " Residence District" of the CVC.

A speed limit of 25 mph is recommended.
16 ‐ 40 MPH
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/31/22
Flat
Both Sides
1,235
3 Yes
28 MPH
33 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Commercial
Uncontrolled Crosswalks
The 85th‐percentile speed of 33 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
52 51

0.32 0

0.00 45
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 42 - LANCASTER DR

BETWEEN SPRINGTIME AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:57:39 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 14
Speed Range 21 0 17
50th percentile speed 22 0 18
85th percentile speed 23 0 23
10 mph pace speed 24 0 15
% in pace speed 25 0 22
26 1 17
27 1 7
28 2 8
29 1 5
30 1 8
31 1 6
32 1 2
33 5 1
34 2 0
35 7 0
36 11 0
37 10 0
38 12 0
39 11 0
229
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐3 WB 1‐2
TWLTL/Concrete Median
No
Comments:

The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. The 10 mph pace ranges from 37 mph to 46 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 45 mph.

Speed Limit Change: No
Speed Justification:
58 57

0.95 29

1.15 53 ‐ 65
Varies Bike Lanes:

Commercial/Commercial
Mixed Use/Low Density
Residential
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
26 ‐ 53 MPH
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
None
24,204
3 Yes
42 MPH
47 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
229
6/30/2022
Both
9:00 AM
40 9:45 AM
LATHROP Rd ‐ Main St to Union Rd
Clear/Dry
Posted Speed Limit: 45 mph
85th-percentile speed
37 ‐ 46  MPH
69%
TOTAL
53 54
55 56
52 51
50 49
48 41
47 46
45 44
43 42
0 5
10 15
20 25
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ATTACHMENT 4
LOCATION 43 - FIGURE A - LATHROP RD

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:57:54 AM ATTACHMENT 4
LOCATION 43 - FIGURE B - LATHROP RD

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:58:09 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 12
Speed Range 21 0 20
50th percentile speed 22 0 20
85th percentile speed 23 0 20
10 mph pace speed 24 0 15
% in pace speed 25 0 12
26 0 12
27 2 12
28 2 5
29 2 4
30 0 4
31 3 2
32 10 5
33 6 0
34 5 1
35 6 0
36 4 0
37 5 0
38 10 0
39 10 0
209
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/Medium Density
Residential/Commercial/
Commercial Mixed
Use/Public/Quasi Public
Uncontrolled Crosswalks

1.23 19

0.76 40 ‐ 65
Varies Bike Lanes:

Expected Collisions Rate:
27 ‐ 54 MPH
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
None
18,559
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
209
6/30/2022
Both
9:50 AM
40 10:40 AM
LATHROP Rd ‐ Union Rd to 1340 ft. west of Airport Way
Posted Speed Limit: 45 mph
Clear/Dry
85th‐percentile speed
42 MPH
47 MPH
38 ‐ 47  MPH
68%
TOTAL
42 52
51 50
49 48
The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 45 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 56
0 5
10 15
20 25
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ATTACHMENT 4
LOCATION 44 - FIGURE A - LATHROP RD

BETWEEN UNION RD AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:58:24 AM ATTACHMENT 4
LOCATION 44 - FIGURE B - LATHROP RD

BETWEEN UNION RD AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:58:39 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 0
Speed Range 21 0 1
50th percentile speed 22 1 0
85th percentile speed 23 0 0
10 mph pace speed 24 3 0
% in pace speed 25 8 0
26 4 0
27 7 0
28 9 0
29 13 0
30 10 0
31 11 0
32 5 0
33 9 0
34 5 0
35 7 0
36 6 0
37 1 0
38 0 0
39 1 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:
41 47
46 45
44 43
42 27 ‐ 36  MPH
81%
TOTAL
53 54
55 56
52 51
50 49
48 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
101
7/6/2022
Both
9:50 AM
40 10:40 AM
LOCUST AVE ‐ Yosemite Ave to Mission Ridge Dr
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
22 ‐ 41 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
None
2,166
3 Yes
30 MPH
35 MPH
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the  roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
58 57

0.92 1

0.46 36 ‐ 45
Both Sides Bike Lanes:

Low/Medium Density
Residential/Commercial/
Public/Quasi Public
0 2
4 6
8 10
12 14
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ATTACHMENT 4
LOCATION 45 - FIGURE A - LOCUST AVE

BETWEEN YOSEMITE AVE AND MISSION RIDGE DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:58:54 AM ATTACHMENT 4
LOCATION 45 - FIGURE B - LOCUST AVE

BETWEEN YOSEMITE AVE AND MISSION RIDGE DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:59:14 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 18 0 3
Speed Range 19 1 0
50th percentile speed 20 0 1
85th percentile speed 21 0 1
10 mph pace speed 22 5 2
% in pace speed 23 3 1
24 0 0
25 3 0
26 6 0
27 6 0
28 17 0
29 14 0
30 7 0
31 16 0
32 8 0
33 8 0
34 9 0
35 6 0
36 4 0
37 2 0
123
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:

The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the  roadway meets the requirements of Section 515 " Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls below this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
39 45
44 43
42 41
51 52
53 Low Density Residential
54 40
50 49
48 47
46 30 MPH
35 MPH
26 ‐ 35  MPH
79%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
123
6/29/2022
Both
9:50 AM
38 10:40 AM
LONDON AVE ‐ Lathrop Rd to Nicol Way
Clear/Dry
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
19 ‐ 43 MPH
57 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Both Sides
2,423
3 Yes
56 55

0.83 1

0.45 45 ‐ 55
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 2
4 6
8 10
12 14
16 18
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ATTACHMENT 4
LOCATION 46 - LONDON AVE

BETWEEN LATHROP RD AND NICOL WY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:59:34 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 0 4
Speed Range 31 0 3
50th percentile speed 32 0 3
85th percentile speed 33 2 2
10 mph pace speed 34 4 2
% in pace speed 35 2 2
36 4 1
37 7 0
38 22 1
39 14 0
40 23 0
41 13 1
42 22 0
43 18 0
44 31 0
45 11 0
46 10 0
47 9 0
48 5 0
49 5 0
221
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median/No Median
No
Comments:

VEHICLE SPEED DATA
51 57
56 55
54 53
52 RECOMMENDED SPEED LIMIT
Speed
40 MPH
221
3/20/2023
Both
2:15 PM
50 3:00 PM
LOUISE AVE ‐ 1350 ft. east of Pestana Ave to Cottage Ave Posted Speed Limit: 40 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district.

Speed Limit Change: No
Speed Justification:
69 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
3,968
3 Yes
TOTAL
Low/Medium Density
Residential/Commercial/
Public/Quasi Public
Adjacent Land Use:

Uncontrolled Crosswalks
Devided Median:
33 ‐ 61 MPH
The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph. 3 0.92
24 ‐ 62
Varies Bike Lanes:

State Average Rate:

Number of Lanes:
42 MPH
47 MPH
38 ‐ 47  MPH
78%
68 67

0.75 63
64 65
66 62
61 60
59 58
0 5
10 15
20 25
30 35
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 ATTACHMENT 4
LOCATION 47 - LOUISE AVE

BETWEEN EAST CITY LIMIT AND COTTAGE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 8:59:54 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 0 5
Speed Range 31 0 4
50th percentile speed 32 0 3
85th percentile speed 33 0 2
10 mph pace speed 34 4 2
% in pace speed 35 2 3
36 3 0
37 6 0
38 10 0
39 15 0
40 24 0
41 28 0
42 23 0
43 32 0
44 23 0
45 24 0
46 19 0
47 13 0
48 6 0
49 5 0
256
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median/No Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Commercial

1.00 15

1.03 25 ‐ 65
Varies Bike Lanes:

State Average Rate:
34 ‐ 55 MPH
69 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
None
13,343
3 Yes
68 67

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
256
3/20/2023
Both
3:05 PM
50 3:35 PM
LOUISE AVE ‐ Cottage Ave to Main St
Posted Speed Limit: 40 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district and the lack of continuous bike lanes and sidewalks.
43 MPH
47 MPH
38 ‐ 47  MPH
82%
TOTAL
66 52
62 61
60 59
58 Uncontrolled Crosswalks
The 85th‐percentile speed of 47 mph indicates a 45 mph speed limit. However, due to fronting residential district and the lack of continuous bike lanes and sidewalks, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 38 mph to 47 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
51 57
56 55
54 53
63 64
65 0
5 10
15 20
25 30
35 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ATTACHMENT 4
LOCATION 48 - FIGURE A - LOUISE AVE

BETWEEN COTTAGE AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:00:09 AM ATTACHMENT 4
LOCATION 48 - FIGURE B - LOUISE AVE

BETWEEN COTTAGE AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:00:24 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 1 0
Speed Range 31 0 0
50th percentile speed 32 1 0
85th percentile speed 33 0 0
10 mph pace speed 34 7 0
% in pace speed 35 8 0
36 19 0
37 23 0
38 21 0
39 26 0
40 24 0
41 16 0
42 25 0
43 15 0
44 8 0
45 12 0
46 5 0
47 6 0
48 3 0
49 1 0
221
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 2
TWLTL/Concrete Median
No
Comments:

The 85th‐percentile speed of 44 mph indicates a 45 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 40 mph. The 10 mph pace ranges from 36 mph to 45 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Justification:
11 0.64
65 Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

Low Density Residential/
Commercial/Public/
Quasi Public/Park
66 52
58 68
67 TOTAL
63 64
Uncontrolled Crosswalks

1.00 40 MPH
44 MPH
36 ‐ 45  MPH
86%
Divided Median:
30 ‐ 49 MPH
69 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/2/22
Flat
None
15,682
3 Yes
60 59

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
221
7/6/2022
Both
9:00 AM
50 9:55 AM
LOUISE AVE ‐ Main St to Union Rd
Clear/Dry
Speed Limit Change: No
Posted Speed Limit: 40 mph
65 51
57 56
55 54
53 62
61 0
5 10
15 20
25 30
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 ATTACHMENT 4
LOCATION 49 - FIGURE A - LOUISE AVE

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:00:39 AM ATTACHMENT 4
LOCATION 49 - FIGURE B - LOUISE AVE

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:00:54 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 2 6
Speed Range 31 3 0
50th percentile speed 32 3 0
85th percentile speed 33 4 0
10 mph pace speed 34 8 0
% in pace speed 35 15 0
36 12 0
37 14 0
38 18 0
39 21 0
40 21 0
41 11 0
42 14 0
43 9 0
44 13 0
45 8 0
46 11 0
47 3 0
48 8 0
49 5 0
209
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median/No Median
No
Comments:

The 85th‐percentile speed of 46 mph indicates a 45 mph speed limit. However, due to pace speed, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 35 mph to 44 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
51 57
56 55
54 53
63 64
65 66
52 62
61 60
59 58
40 MPH
46 MPH
35 ‐ 44  MPH
71%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
209
7/6/2022
Both
10:15 AM
50 11:05 AM
LOUISE AVE ‐ Union Rd to 2550 ft. west of Airport Way
Posted Speed Limit: 40 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to pace speed. 30 ‐ 50 MPH
69 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Varies
13,080
3 Yes
68 67

1.45 20

0.96 40 ‐ 65
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Commercial/
Commercial Mixed
Use/Public/Quasi Public
Uncontrolled Crosswalks
0 5
10 15
20 25
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ATTACHMENT 4
LOCATION 50 - FIGURE A - LOUISE AVE

BETWEEN UNION RD AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:01:10 AM ATTACHMENT 4
LOCATION 50 - FIGURE B - LOUISE AVE

BETWEEN UNION RD AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:01:25 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 0 3
Speed Range 31 1 1
50th percentile speed 32 2 1
85th percentile speed 33 2 1
10 mph pace speed 34 0 1
% in pace speed 35 9 1
36 7 0
37 13 0
38 22 0
39 17 0
40 33 0
41 37 0
42 30 0
43 27 0
44 16 0
45 13 0
46 5 0
47 5 0
48 5 0
49 2 0
254
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 2 SB 2
No
Comments:
51 57
56 55
54 53
52 36 ‐ 45  MPH
85%
TOTAL
63 64
65 66
62 61
60 59
58 VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
40 MPH
254
3/20/2023
Both
3:45 PM
50 4:20 PM
MAIN STREET ‐ Louise Ave to Lathrop Rd
Posted Speed Limit: 40 mph
Clear/Dry
31 ‐ 55 MPH
69 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
Varies
13,435
3 Yes
41 MPH
44 MPH
State Average Rate:

Number of Lanes: Adjacent Land Use: Low/Medium Density
Residential/Commercial/
Commercial Mixed
Use/Public/Quasi Public
Uncontrolled Crosswalks
Divided Median:

The 85th‐percentile speed of 44 mph indicates a 45 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. No further reduction is allowed. Therefore, it is recommended that the posted speed limit remains at 40 mph. The 10 mph pace ranges from 36 mph to 45 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
68 67

1.04 7

0.46 64 ‐ 84
Bike Lanes:
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

TWLTL/Concrete Median
Both Sides
0 5
10 15
20 25
30 35
40 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ATTACHMENT 4
LOCATION 51 - FIGURE A - MAIN ST

BETWEEN LOUISE AVE AND LATHROP RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:01:45 AM ATTACHMENT 4
LOCATION 51 - FIGURE B - MAIN ST

BETWEEN LOUISE AVE AND LATHROP RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:02:05 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Posted Speed Limit:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 25 0 4
Speed Range 26 1 3
50th percentile speed 27 2 2
85th percentile speed 28 2 0
10 mph pace speed 29 0 1
% in pace speed 30 8 0
31 9 0
32 16 0
33 8 0
34 11 0
35 14 0
36 26 0
37 24 0
38 19 0
39 10 0
40 16 0
41 9 0
42 9 0
43 8 0
44 3 0
205
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 2 SB 2
TWLTL
Yes
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Commercial/Public/
Quasi Public

0.50 9

0.79 64 ‐ 84
Both Sides Bike Lanes:

Expected Collisions Rate:
26 ‐ 49 MPH
64 1.10 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
8/4/22
Flat
None
20,867
3 Yes
63 62

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
205
7/6/2022
Both
11:30 AM
45 12:05 AM
MAIN STREET ‐ Louise Ave to Alameda St
40 mph
Clear/Dry
Speed Limit Change:
85th‐percentile speed
37 MPH
41 MPH
31 ‐ 40  MPH
75%
TOTAL
47 57
56 55
54 53
Uncontrolled Crosswalks
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 31 mph to 40 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 40 mph.

No
Speed Justification:
46 52
51 50
49 48
58 59
60 61
0 5
10 15
20 25
30 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 ATTACHMENT 4
LOCATION 52 - MAIN ST

BETWEEN LOUISE AVE AND ALAMEDA ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:02:25 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 2
Speed Range 21 0 0
50th percentile speed 22 0 1
85th percentile speed 23 0 0
10 mph pace speed 24 1 1
% in pace speed 25 3 0
26 4 0
27 9 0
28 11 0
29 15 0
30 20 0
31 6 0
32 14 0
33 8 0
34 8 0
35 3 0
36 7 0
37 2 0
38 2 0
39 0 0
117
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
TWLTL/Concrete Median/No Median
Yes
Comments:
41 47
46 45
44 43
42 27 ‐ 36  MPH
86%
TOTAL
53 54
55 56
52 51
50 49
48 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
117
7/7/2022
Both
9:00 AM
40 10:00 AM
MAIN STREET ‐ Alameda St to Wetmore St
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to uncontrolled crosswalk, and the lack of continuous bike lanes north of Yosemite Ave. 24 ‐ 44 MPH
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
Varies
14,836
3 Yes
30 MPH
35 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. However, due to uncontrolled crosswalk, and the lack of continuous bike lanes north of Yosemite Ave, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls within this range. The collision rate is slightly above the expected rate.

Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
58 57

0.78 19

1.50 45 ‐ 70
Both Sides Bike Lanes:

Downtown
Expected Collisions Rate:
0 5
10 15
20 25
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 53 - MAIN ST

BETWEEN ALAMEDA ST AND WETMORE ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 01-53.dwg, 4/20/2023 9:02:45 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 30
Speed Range 21 0 28
50th percentile speed 22 0 15
85th percentile speed 23 0 7
10 mph pace speed 24 0 4
% in pace speed 25 0 8
26 0 7
27 0 4
28 0 2
29 0 1
30 0 2
31 2 1
32 4 1
33 8 1
34 17 1
35 24 1
36 25 1
37 26 0
38 38 0
39 20 0
278
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
Commercial/ Commercial
Mixed Use/Industrial

1.01 18

0.95 34 ‐ 94
Varies Bike Lanes:

State Average Rate:
31 ‐ 56 MPH
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
Varies
17,175
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
278
3/20/2023
Both
4:25 PM
40 4:50 PM
MAIN STREET ‐ Wetmore St to Atherton Dr
Posted Speed Limit: 35 mph
Clear/Dry
38 MPH
42 MPH
33 ‐ 42  MPH
83%
TOTAL
55 56
42 52
51 50
49 48
The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to the fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 33 mph to 42 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 TWLTL/Concrete Median/No Median
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district. 54 0
5 10
15 20
25 30
35 40
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 ATTACHMENT 4
LOCATION 54 - FIGURE A - MAIN ST

BETWEEN WETMORE ST AND ATHERTON DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:03:46 AM ATTACHMENT 4
LOCATION 54 - FIGURE B - MAIN ST

BETWEEN WETMORE ST AND ATHERTON DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:04:00 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 16
Speed Range 21 0 26
50th percentile speed 22 0 17
85th percentile speed 23 0 11
10 mph pace speed 24 0 13
% in pace speed 25 0 9
26 1 9
27 0 10
28 0 7
29 0 3
30 2 4
31 4 3
32 4 3
33 6 1
34 5 1
35 9 0
36 9 0
37 13 1
38 18 0
39 18 0
223
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
TWLTL/Concrete Median/No Median
No
Comments:
35 ‐ 44  MPH
67%
26 ‐ 57 MPH
41 MPH
46 MPH
41 47
46 45
44 43
42 48
TOTAL
53 54
55 56
58 57
52 51
50 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
223
7/6/2022
Both
10:25 AM
40 11:00 AM
MAIN STREET between Woodward Ave and Sedan Ave
Clear/Dry
Speed Limit Change: Yes
SB 40 MPH ‐ NB 40/45/55 MPH
A 5‐mph reduction from the 85th‐percentile speed due to pace speed and fronting residential district.
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Varies
10,275
3 Yes
Adjacent Land Use:

Divided Median:

The 85th‐percentile speed of 46 mph indicates a 45 mph speed limit. However, due to pace speed and fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 35 mph to 44 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit becomes 40 mph.

Low Density
Residential/Commercial
Mixed Use
Number of Lanes:

Uncontrolled Crosswalks
Posted Speed Limit:

1.50 0

0.00 24 ‐ 80
Varies Bike Lanes:

Expected Collisions Rate:

Speed Justification:
49 0
5 10
15 20
25 30
26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56
ATTACHMENT 4
LOCATION 55 - FIGURE A - MAIN ST

BETWEEN WOODWARD AVE AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:04:20 AM ATTACHMENT 4
LOCATION 55 - FIGURE B - MAIN ST

BETWEEN WOODWARD AVE AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:04:40 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 4
Speed Range 21 0 4
50th percentile speed 22 0 2
85th percentile speed 23 0 1
10 mph pace speed 24 0 2
% in pace speed 25 0 1
26 2 0
27 10 0
28 3 0
29 22 0
30 27 0
31 24 0
32 19 0
33 22 0
34 17 0
35 15 0
36 20 0
37 19 0
38 7 0
39 4 0
225
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1‐2
TWLTL/No Median
No
Comments:
41 47
46 45
44 43
42 29 ‐ 38  MPH
85%
TOTAL
53 54
55 56
52 51
50 49
48 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
225
3/27/2023
Both
2:20 PM
40 3:00 PM
MISSION RIDGE DRIVE ‐ Main St to Union Rd
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district and proximity to park.
26 ‐ 45 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/31/22
Flat
Both Sides
2,915
3 Yes
33 MPH
37 MPH
Number of Lanes: Adjacent Land Use:

Uncontrolled Crosswalks
Divided Median:

The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to fronting residential district and proximity to park, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 29 mph to 38 mph and the recommended speed limit falls within this range. The collision rate is slightly above the expected rate.

Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
58 57

1.31 5

1.20 55 ‐ 81
Bike Lanes:

Low Density
Residential/Park/
Commercial
Both Sides
State Average Rate:
0 5
10 15
20 25
30 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ATTACHMENT 4
LOCATION 56 - FIGURE A - MISSION RIDGE DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:05:00 AM ATTACHMENT 4
LOCATION 56 - FIGURE B - MISSION RIDGE DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:05:15 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 0 4
Speed Range 31 0 7
50th percentile speed 32 0 6
85th percentile speed 33 0 6
10 mph pace speed 34 2 8
% in pace speed 35 0 11
36 0 0
37 4 1
38 14 0
39 15 0
40 34 0
41 26 0
42 26 0
43 27 0
44 24 0
45 41 0
46 26 0
47 25 0
48 10 0
49 10 0
327
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1
TWLTL/No Median
Yes
Comments:

Based on CVC Section 22358.6(c), the 85th‐percentile speed was rounded down to the nearest 5 mph increment. No further reduction is allowed. Therefore, it is recommended that the posted speed limit remains at 45 mph. The 10 mph pace ranges from 38 mph to 47 mph, and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
68 67

1.80 13

1.05 30 ‐ 64
Varies Bike Lanes:

State Average Rate:

Number of Lanes: Adjacent Land Use: Commercial/Park/
Industrial/Business
Industrial Park/
Public/Quasi Public
Uncontrolled Crosswalks
Divided Median:
34 ‐ 57 MPH
69 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
6,301
3 Yes
44 MPH
49 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
327
4/5/2023
Both
10:40 AM
50 11:30 AM
MOFFAT BOULEVARD ‐ Austin Rd to Powers Ave
Posted Speed Limit: 45 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
38 ‐ 47  MPH
79%
TOTAL
63 64
65 66
62 61
60 59
58 51
57 56
55 54
53 52
0 5
10 15
20 25
30 35
40 45
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 ATTACHMENT 4
LOCATION 57 - FIGURE A - MOFFAT BLVD

BETWEEN AUSTIN RD AND POWERS AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:05:30 AM ATTACHMENT 4
LOCATION 57 - FIGURE B - MOFFAT BLVD

BETWEEN AUSTIN RD AND POWERS AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:05:50 AM ATTACHMENT 4
LOCATION 57 - FIGURE C - MOFFAT BLVD

BETWEEN AUSTIN RD AND POWERS AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:06:05 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 30 2 3
Speed Range 31 1 2
50th percentile speed 32 1 1
85th percentile speed 33 7 4
10 mph pace speed 34 8 2
% in pace speed 35 11 0
36 8 1
37 12 1
38 15 0
39 17 0
40 19 0
41 20 0
42 13 0
43 13 0
44 10 0
45 11 0
46 8 0
47 6 0
48 7 0
49 3 0
206
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

The 85th‐percentile speed of 46 mph indicates a 45 mph speed limit. However, due to pace speed, uncontrolled crosswalk, and pedestrians crossing the road to access transit center, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 35 mph to 44 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
68 67

0.73 4

0.77 47
Both Sides Bike Lanes:

Commercial/Medium
Density Residential/
Downtown/ Industrial
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
30 ‐ 57 MPH
69 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
Both Sides
6,475
3 Yes
41 MPH
46 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
206
6/29/2022
Both
2:30 PM
50 3:20 PM
MOFFAT BOULEVARD ‐ Powers Ave to Main St
Posted Speed Limit: 40 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to pace speed, uncontrolled crosswalk, and pedestrians crossing the road to access transit center. 35 ‐ 44  MPH
67%
TOTAL
63 64
65 66
62 61
60 59
58 51
57 56
55 54
53 52
0 5
10 15
20 25
30 32 34 36 38 40 42 44 46 48 50 52 54 56
ATTACHMENT 4
LOCATION 58 - MOFFAT BLVD

BETWEEN POWERS AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:06:20 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 6
Speed Range 15 0 3
50th percentile speed 16 0 4
85th percentile speed 17 0 1
10 mph pace speed 18 1 3
% in pace speed 19 2 0
20 5 1
21 3 0
22 7 0
23 4 0
24 6 0
25 8 0
26 8 0
27 5 0
28 5 0
29 9 0
30 7 0
31 5 0
32 5 0
33 7 0
105
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park

0.71 0

0.00 44
Both Sides Bike Lanes:

Expected Collisions Rate:
18 ‐ 40 MPH
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Both Sides
757
3 Yes
52 51

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
105
11/29/2022
Both
10:50 AM
34 1:15 PM
MONO STREET ‐ Pillsbury Rd to Springfield Dr
Posted Speed Limit: None
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
28 MPH
34 MPH
24 ‐ 33  MPH
62%
TOTAL
50 36
46 45
44 43
42 Uncontrolled Crosswalks
The 85th‐percentile speed of 34 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit becomes 25 mph. The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: Yes
Speed Justification:
35 41
40 39
38 37
47 48
49 0
1 2
3 4
5 6
7 8
9 10
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 59 - MONO ST

BETWEEN PILLSBURY RD AND SPRINGFIELD DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:06:35 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 7
Speed Range 15 0 3
50th percentile speed 16 0 2
85th percentile speed 17 0 1
10 mph pace speed 18 0 1
% in pace speed 19 1 0
20 1 2
21 3 0
22 5 0
23 3 0
24 4 0
25 7 0
26 11 0
27 10 0
28 12 0
29 13 0
30 10 0
31 8 0
32 4 0
33 3 0
111
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

The 85th‐percentile speed of 33 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit becomes 25 mph. The 10 mph pace ranges from 25 mph to 34 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
52 51

0.54 0

0.00 45
Both Sides Bike Lanes:

Low/High Density
Residential
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
19 ‐ 40 MPH
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Both Sides
869
3 Yes
28 MPH
33 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
111
6/30/2022
Both
10:10 AM
34 11:30 AM
NEHEMIAH DRIVE ‐ 1275 ft. east of Pestana Ave to Button Ave Clear/Dry
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
25 ‐ 34  MPH
77%
TOTAL
47 48
49 50
46 45
44 43
42 35
41 40
39 38
37 36
0 2
4 6
8 10
12 14
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 60 - NEHEMIAH DR

BETWEEN EAST END AND BUTTON AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:06:50 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 1
Speed Range 15 0 0
50th percentile speed 16 0 0
85th percentile speed 17 0 1
10 mph pace speed 18 0 0
% in pace speed 19 3 0
20 1 0
21 4 0
22 5 0
23 5 0
24 7 0
25 11 0
26 12 0
27 10 0
28 13 0
29 12 0
30 9 0
31 4 0
32 4 0
33 4 0
106
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

The 85th‐percentile speed of 30 mph indicates a 30 mph speed limit. However, due to fronting residential district, uncontrolled crosswalk, and the collision rate exceeding expected collisions rate, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 21 mph to 30 mph and the recommended speed limit falls within this range. Therefore, it is recommended that the posted speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
52 51

0.26 2

1.73 41
Both Sides Bike Lanes:

Medium/High Density
Residential/Commercial/
Public/Quasi Public
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
19 ‐ 37 MPH
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
4,055
3 Yes
27 MPH
30 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
106
6/28/2022
Both
11:05 AM
34 12:05 PM
NORTH STREET ‐ Lovell Way to Cottage Ave
Posted Speed Limit: 25 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district, uncontrolled crosswalk, and the collision rate exceeding expected collisions rate. 21 ‐ 30  MPH
83%
TOTAL
47 48
49 50
46 45
44 43
42 35
41 40
39 38
37 36
0 2
4 6
8 10
12 14
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ATTACHMENT 4
LOCATION 61 - NORTH ST

BETWEEN LOVELL WAY AND COTTAGE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:07:10 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 13
Speed Range 15 0 9
50th percentile speed 16 0 4
85th percentile speed 17 0 2
10 mph pace speed 18 0 1
% in pace speed 19 0 1
20 0 1
21 0 1
22 0 0
23 1 0
24 0 1
25 2 0
26 1 0
27 8 0
28 9 0
29 8 0
30 12 0
31 13 0
32 10 0
33 12 0
109
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Public/Quasi
Public Uncontrolled Crosswalks

1.00 8

1.13 41
Both Sides Bike Lanes:

Expected Collisions Rate:
23 ‐ 44 MPH
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/4/22
Flat
None
6,447
3 Yes
52 51

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
109
6/28/2022
Both
9:45 AM
34 10:45 PM
NORTH STREET ‐ Cottage Ave to Main St
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district, uncontrolled crosswalk, and lack of continuous bike lane. 32 MPH
35 MPH
27 ‐ 36  MPH
90%
TOTAL
36 46
45 44
43 42
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. However, due to fronting residential district, uncontrolled crosswalk, and lack of continuous bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls within this range. The collision rate is blow the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
35 41
40 39
38 37
47 48
49 50
0 2
4 6
8 10
12 14
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 62 - FIGURE A - NORTH ST

BETWEEN COTTAGE AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:07:25 AM ATTACHMENT 4
LOCATION 62 - FIGURE B - NORTH ST

BETWEEN COTTAGE AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:07:40 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 14 0 14
Speed Range 15 0 8
50th percentile speed 16 0 6
85th percentile speed 17 0 1
10 mph pace speed 18 0 2
% in pace speed 19 0 1
20 0 2
21 0 1
22 0 1
23 0 1
24 0 0
25 2 0
26 2 0
27 5 0
28 4 0
29 10 0
30 19 0
31 8 0
32 16 0
33 5 0
108
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:
37 Low Density
Residential/Downtown

VEHICLE SPEED DATA
Speed
30 MPH
108
7/7/2022
Both
10:15 AM
34 11:45 AM
NORTH STREET ‐ Main St to Elm Ave

RECOMMENDED SPEED LIMIT
Posted Speed Limit: 30 mph
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district and lack of a bike lane.
53 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/10/22
Flat
None
3,085
3 Yes
TOTAL
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. However, due to fronting residential district and lack of continuous bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls within this range. The collision rate is blow the expected rate.

Therefore, it is recommended that the posted speed limit remains at 30 mph.

Adjacent Land Use:
52 51
47 48
49 50
Expected Collisions Rate:

Speed Limit Change: No
36 46
45 44
43 42
35 41
40 39
38 Speed Justification:

Divided Median:

Number of Lanes:

Uncontrolled Crosswalks
Clear/Dry
41 Both Sides Bike Lanes:
25 ‐ 43 MPH
32 MPH
35 MPH
27 ‐ 36  MPH
88%

0.33 0

0.00 0
2 4
6 8
10 12
14 16
18 20
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ATTACHMENT 4
LOCATION 63 - NORTH ST

BETWEEN MAIN ST AND ELM AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:07:55 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 17
Speed Range 21 0 15
50th percentile speed 22 0 10
85th percentile speed 23 0 7
10 mph pace speed 24 0 4
% in pace speed 25 0 2
26 0 1
27 0 2
28 2 1
29 4 2
30 1 0
31 1 0
32 3 0
33 3 0
34 6 0
35 10 0
36 16 0
37 16 0
38 11 0
39 12 0
146
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 1‐2
Yes
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median: Concrete Median/No Median

1.00 13

1.80 65
Both Sides Bike Lanes:

State Average Rate:
28 ‐ 49 MPH
59 1.46 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
None
6,595
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
146
2/16/2023
Both
12:15 PM
40 1:15 PM
NORTHGATE DRIVE ‐ Main St to Union Rd
Posted Speed Limit: 35 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district, existing school crossing, proximity to school, and the lack of a bike lane. 38 MPH
42 MPH
34 ‐ 43  MPH
82%
TOTAL
55 56
42 52
51 50
49 48
Uncontrolled Crosswalks
The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to fronting residential district, existing school crossing, proximity to school, and the lack of a bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 34 mph to 43 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 Low/Medium/High
Density
Residential/Commercial/
Public/Quasi Public
54 0
2 4
6 8
10 12
14 16
18 28 30 32 34 36 38 40 42 44 46 48
ATTACHMENT 4
LOCATION 64 - FIGURE A - NORTHGATE DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:08:10 AM ATTACHMENT 4
LOCATION 64 - FIGURE B - NORTHGATE DR

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:08:30 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 0
Speed Range 17 1 2
50th percentile speed 18 0 0
85th percentile speed 19 0 0
10 mph pace speed 20 1 0
% in pace speed 21 2 0
22 3 0
23 4 0
24 6 0
25 11 0
26 9 0
27 7 0
28 9 0
29 11 0
30 13 0
31 7 0
32 8 0
33 9 0
34 3 0
35 6 0
112
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

The 85th‐percentile speed of 33 mph indicates a 35 mph speed limit. The collision rate is above the expected rate.

Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains at 25 mph.  The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range.

Speed Limit Change: No
Speed Justification:
54 53

1.00 5

3.33 45
Both Sides Bike Lanes:

Expected Collisions Rate:

Low Density
Residential/Public/Quasi
Public/Park
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
17 ‐ 37 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Both Sides
1,373
3 Yes
29 MPH
33 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
112
11/15/2022
Both
10:00 AM
36 11:50 AM
NORTHGATE DRIVE ‐ Union Rd to Airport Way
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
24 ‐ 33  MPH
80%
TOTAL
49 50
51 52
48 47
46 45
44 37
43 42
41 40
39 38
0 2
4 6
8 10
12 14
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ATTACHMENT 4
LOCATION 65 - FIGURE A - NORTHGATE DR

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:08:50 AM ATTACHMENT 4
LOCATION 65 - FIGURE B - NORTHGATE DR

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:09:05 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 0
Speed Range 17 0 2
50th percentile speed 18 0 1
85th percentile speed 19 1 1
10 mph pace speed 20 5 0
% in pace speed 21 5 0
22 10 0
23 12 0
24 12 0
25 16 0
26 26 0
27 21 0
28 21 0
29 15 0
30 8 0
31 8 0
32 6 0
33 1 0
34 0 0
35 2 0
173
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks

0.25 6

4.78 41
Varies Bike Lanes:

Expected Collisions Rate:
19 ‐ 39 MPH
55 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
4,588
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
173
6/30/2022
Both
2:00 PM
36 3:00 PM
NORTHWOODS AVE ‐ Lovell Way to Yosemite Ave
Posted Speed Limit: 25 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district north of Mcnary Cir and lack of a bike lane.
26 MPH
30 MPH
22 ‐ 31  MPH
86%
TOTAL
52 38
48 47
46 45
44 The 85th‐percentile speed of 30 mph indicates a 30 mph speed limit. However, due to fronting residential district north of Mcnary Cir and the lack of continuous bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 22 mph to 31 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 25 mph.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 Medium/High Density
Residential/Commercial
0 5
10 15
20 25
30 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ATTACHMENT 4
LOCATION 66 - NORTHWOODS AVE

BETWEEN LOVELL WAY AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:09:20 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 7
Speed Range 17 0 2
50th percentile speed 18 0 3
85th percentile speed 19 0 3
10 mph pace speed 20 3 2
% in pace speed 21 2 0
22 4 1
23 5 0
24 5 0
25 10 1
26 4 0
27 3 0
28 6 0
29 6 0
30 10 0
31 4 0
32 5 0
33 9 0
34 7 0
35 6 0
108
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:

The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. The collision rate is above the expected rate.

Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit becomes 25 mph. The 10 mph pace ranges from 25 mph to 34 mph and the recommended speed limit falls within this range.

Speed Limit Change: Yes
Speed Justification:
37 43
42 41
40 39
49 50
51 Low Density Residential
52 38
48 47
46 45
44 30 MPH
36 MPH
25 ‐ 34  MPH
59%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
108
11/16/2022
Both
10:45 AM
36 1:05 PM
OLEANDER AVE ‐ 775 ft. south of Sephos St to Red Pheasant Ln Posted Speed Limit: None
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
20 ‐ 45 MPH
55 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Varies
612
3 Yes
54 53

0.30 2

9.95 40 ‐ 55
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 2
4 6
8 10
12 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ATTACHMENT 4
LOCATION 67 - OLEANDER AVE

BETWEEN CITY LIMIT AND RED PHEASANT LN
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:09:35 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 8
Speed Range 17 0 10
50th percentile speed 18 1 6
85th percentile speed 19 1 3
10 mph pace speed 20 1 4
% in pace speed 21 3 2
22 2 0
23 4 2
24 2 1
25 3 1
26 2 0
27 1 1
28 5 0
29 3 0
30 4 0
31 4 0
32 6 0
33 6 0
34 8 0
35 6 0
100
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density Residential

0.26 0

0.00 42
One Side Bike Lanes:

Expected Collisions Rate:
18 ‐ 47 MPH
55 1.18 c/mvm
One Side
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
One Side
532
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
100
6/30/2022
Both
9:30 AM
36 11:10 AM
PEACH AVE ‐ 530 ft. west of Macedo St to 135 ft. east of Al Fonseca Ln Posted Speed Limit: 35 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
34 MPH
38 MPH
29 ‐ 38  MPH
61%
TOTAL
52 38
48 47
46 45
44 Uncontrolled Crosswalks
The 85th‐percentile speed of 38 mph indicates a 40 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 35 mph. The 10 mph pace ranges from 29 mph to 38 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 0
2 4
6 8
10 12
18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
ATTACHMENT 4
LOCATION 68 - PEACH AVE

BETWEEN WEST CITY LIMIT AND EAST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:09:55 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 11
Speed Range 17 0 4
50th percentile speed 18 0 4
85th percentile speed 19 0 3
10 mph pace speed 20 0 1
% in pace speed 21 0 0
22 1 1
23 0 0
24 2 0
25 2 0
26 7 0
27 5 0
28 6 0
29 10 0
30 7 0
31 17 0
32 8 0
33 10 0
34 8 0
35 7 0
114
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park

0.25 0

0.00 45
One Side Bike Lanes:

Expected Collisions Rate:
22 ‐ 42 MPH
55 1.18 c/mvm
One Side
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
One Side
1,517
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
114
7/5/2022
Both
1:50 PM
36 2:50 PM
PESTANA AVE ‐ 120 ft. north of Pin Oak Ct to Louise Ave Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
31 MPH
36 MPH
27 ‐ 36  MPH
78%
TOTAL
52 38
48 47
46 45
44 Uncontrolled Crosswalks
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. The collision rate is below the expected rate.

Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph.  The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 0
2 4
6 8
10 12
14 16
18 22 24 26 28 30 32 34 36 38 40 42
ATTACHMENT 4
LOCATION 69 - PESTANA AVE

BETWEEN NORTH CITY LIMIT AND LOUISE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:10:10 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 14
Speed Range 17 0 16
50th percentile speed 18 0 5
85th percentile speed 19 0 6
10 mph pace speed 20 0 2
% in pace speed 21 0 3
22 0 1
23 0 0
24 1 2
25 2 1
26 4 0
27 4 0
28 6 0
29 6 0
30 8 0
31 8 0
32 11 0
33 15 0
34 14 0
35 16 0
145
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:
37 43
42 41
40 39
38 28 ‐ 37  MPH
79%
TOTAL
49 50
51 52
48 47
46 45
44 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
145
2/15/2023
Both
1:15 PM
36 2:15 PM
PESTANA AVE ‐ Louise Ave to Yosemite Ave
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to the fronting residential district.
24 ‐ 45 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Both Sides
2,574
3 Yes
34 MPH
37 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
54 53

1.00 1

0.35 45
Both Sides Bike Lanes:

State Average Rate:

Low/Medium/High Density
Residential/Commercial/
Public/Quasi Public/Park
0 2
4 6
8 10
12 14
16 18
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ATTACHMENT 4
LOCATION 70 - FIGURE A - PESTANA AVE

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:10:25 AM ATTACHMENT 4
LOCATION 70 - FIGURE B - PESTANA AVE

BETWEEN LOUISE AVE AND YOSEMITE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:10:45 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 3
Speed Range 17 0 1
50th percentile speed 18 0 4
85th percentile speed 19 0 2
10 mph pace speed 20 0 0
% in pace speed 21 3 0
22 2 0
23 4 0
24 5 0
25 7 0
26 6 0
27 10 0
28 8 0
29 11 0
30 14 0
31 9 0
32 9 0
33 7 0
34 7 0
35 8 0
120
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL
No
Comments:

Uncontrolled Crosswalks
The 85th‐percentile speed of 34 mph indicates a 35 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 30 mph. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate.

Speed Limit Change: No
Speed Justification:
54 53

0.19 4

3.66 45
One Side Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Commercial/Industrial
21 ‐ 39 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/31/22
Flat
None
5,257
3 Yes
30 MPH
34 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
120
6/28/2022
Both
11:45 AM
36 12:45 PM
PHOENIX DRIVE ‐ Commerce Ct to Spreckels Ave
Posted Speed Limit: 30 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
26 ‐ 35  MPH
74%
TOTAL
49 50
51 52
48 47
46 45
44 37
43 42
41 40
39 38
0 2
4 6
8 10
12 14
16 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 ATTACHMENT 4
LOCATION 71 - PHOENIX DR

BETWEEN COMMERCE CT AND SPRECKELS AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:11:05 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 12
Speed Range 17 0 6
50th percentile speed 18 0 6
85th percentile speed 19 0 7
10 mph pace speed 20 0 4
% in pace speed 21 0 1
22 0 3
23 1 1
24 0 0
25 8 1
26 7 0
27 3 0
28 14 0
29 9 0
30 14 0
31 5 0
32 10 0
33 14 0
34 13 0
35 12 0
151
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/Concrete Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Commercial Mixed
Use/Low Density
Residential Uncontrolled Crosswalks

0.76 2

0.74 45 ‐ 60
Varies Bike Lanes:

Expected Collisions Rate:
23 ‐ 45 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
3,250
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
151
6/30/2022
Both
9:00 AM
36 10:00 AM
PILLSBURY ROAD ‐ Woodward Ave to 375 ft. south of Mono St Clear/Dry
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 " Residence District" of the CVC. A speed limit of 25 mph is recommended.
33 MPH
38 MPH
28 ‐ 37  MPH
72%
TOTAL
38 48
47 46
45 44
The 85th‐percentile speed of 38 mph indicates a 40 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
0 2
4 6
8 10
12 14
16 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ATTACHMENT 4
LOCATION 72 - PILLSBURY RD

BETWEEN WOODWARD AVE AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:11:20 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 0
Speed Range 17 0 0
50th percentile speed 18 2 0
85th percentile speed 19 0 0
10 mph pace speed 20 5 0
% in pace speed 21 8 0
22 8 0
23 10 0
24 8 0
25 18 0
26 11 0
27 13 0
28 6 0
29 6 0
30 5 0
31 2 0
32 4 0
33 0 0
34 1 0
35 0 0
107
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/Concrete Median/No Median
Yes
Comments:
37 43
42 41
40 39
38 20 ‐ 29  MPH
87%
TOTAL
49 50
51 52
48 47
46 45
44 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
107
6/30/2022
Both
9:00 AM
36 10:00 AM
POWERS AVE ‐ North St to Moffat Blvd
Clear/Dry
Posted Speed Limit: 25 mph
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
18 ‐ 34 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Both Sides
3,307
3 Yes
25 MPH
29 MPH
Adjacent Land Use:

Divided Median:

Low Density
Residential/Commercial/
Public/Quasi Public/Park Uncontrolled Crosswalks
The 85th‐percentile speed of 29 mph indicates a 30 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 25 mph. The 10 mph pace ranges from 20 mph to 29 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate.

Speed Limit Change: No
Speed Justification:
54 53

0.82 7

2.36 53 ‐ 61
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes:
0 2
4 6
8 10
12 14
16 18
20 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
ATTACHMENT 4
LOCATION 73 - POWERS AVE

BETWEEN NORTH ST AND MOFFAT BLVD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:11:40 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 4
Speed Range 17 0 3
50th percentile speed 18 0 4
85th percentile speed 19 1 2
10 mph pace speed 20 0 0
% in pace speed 21 1 1
22 2 1
23 3 0
24 4 0
25 7 1
26 4 1
27 10 0
28 7 0
29 5 0
30 6 0
31 10 0
32 6 0
33 4 0
34 7 0
35 8 0
102
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density Residential
53 0.40
0 0.00 Expected Collisions Rate:

TOTAL
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Both Sides
650
3 44 Yes
Both Sides Bike Lanes:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
102
11/15/2022
Both
11:55 AM
36 1:25 PM
PRIMAVERA AVE ‐ Northgate Dr to Nicol Way
Clear/Dry
Speed Limit Change: No
Posted Speed Limit: 25 mph
43 42
41 40
39 31 MPH
36 MPH
26 ‐ 35  MPH
66%
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
37 38
Uncontrolled Crosswalks
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph.  The collision rate is below the expected rate. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls below this range.

Speed Justification:
49 50
51 52
48 47
46 45
44 19 ‐ 46 MPH
0 54
2 4
6 8
10 12
19 21 23 25 27 29 31 33 35 37 39 41 43 45
ATTACHMENT 4
LOCATION 74 - PRIMAVERA AVE

BETWEEN NORTHGATE DR AND NICOL WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:12:01 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 11
Speed Range 17 0 7
50th percentile speed 18 0 7
85th percentile speed 19 0 5
10 mph pace speed 20 0 7
% in pace speed 21 0 6
22 0 6
23 0 5
24 0 8
25 1 7
26 0 1
27 2 3
28 0 2
29 3 1
30 7 2
31 7 1
32 10 1
33 5 3
34 10 0
35 10 0
138
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 1
TWLTL
No
Comments:
37 43
42 41
40 39
38 30 ‐ 39  MPH
57%
TOTAL
49 50
51 52
48 47
46 45
44 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
138
6/7/2022
Both
12:45 PM
36 1:50 PM
ROTH RD ‐ Intermodal Way to Airport Way
Posted Speed Limit: 45 mph
Clear/Dry
85th‐percentile speed
25 ‐ 53 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
5,743
3 Yes
37 MPH
45 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Industrial
Uncontrolled Crosswalks
The 85th‐percentile speed of 45 mph indicates a 45 mph speed limit. The 10 mph pace ranges from 30 mph to 39 mph and the recommended speed limit falls above this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 45 mph.

Speed Limit Change: No
Speed Justification:
54 53

0.26 1

0.61 44
None Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ATTACHMENT 4
LOCATION 75 - ROTH RD

BETWEEN INTERMODAL WAY AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:12:21 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 25 0 5
Speed Range 26 0 4
50th percentile speed 27 0 3
85th percentile speed 28 0 5
10 mph pace speed 29 0 8
% in pace speed 30 0 3
31 0 1
32 0 2
33 0 0
34 0 4
35 1 3
36 0 0
37 4 3
38 8 1
39 3 0
40 8 0
41 3 0
42 4 0
43 12 0
44 15 0
100
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL/No Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/Medium/High Density
Residential/Public/Quasi
Public/Business Professional Uncontrolled Crosswalks

0.60 0

0.00 25
None Bike Lanes:

State Average Rate:
35 ‐ 58 MPH
64 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
None
527
3 Yes
63 62

VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
45 MPH
100
4/5/2023
Both
2:30 PM
45 4:50 PM
SOUTHLAND ROAD ‐ Mitchell Rd to Highway 99 E Frontage Rd Posted Speed Limit: 45 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to pace speed and fronting residential district.
44 MPH
50 MPH
40 ‐ 49  MPH
67%
TOTAL
47 57
56 55
54 53
The 85th‐percentile speed of 50 mph indicates a 50 mph speed limit. However, due to pace speed and fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 40 mph to 49 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

Speed Limit Change: No
Speed Justification:
46 52
51 50
49 48
58 59
60 61
0 2
4 6
8 10
12 14
16 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 ATTACHMENT 4
LOCATION 76 - SOUTHLAND RD
BETWEEN MITCHELL RD AND HIGHWAY 99 E FRONTAGE RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:12:36 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 14
Speed Range 21 0 11
50th percentile speed 22 1 11
85th percentile speed 23 0 6
10 mph pace speed 24 1 6
% in pace speed 25 3 1
26 3 2
27 9 0
28 8 1
29 14 0
30 15 3
31 10 0
32 15 0
33 12 0
34 14 0
35 14 0
36 11 0
37 16 0
38 17 0
39 10 0
228
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
TWLTL/Concrete Median
Yes
Comments:
41 47
46 45
44 43
42 29 ‐ 38  MPH
61%
TOTAL
53 54
55 56
52 51
50 49
48 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
228
6/28/2022
Both
1:00 PM
40 1:50 PM
SPRECKELS AVENUE ‐ Yosemite Ave to Moffat Blvd
Clear/Dry
Posted Speed Limit: 40 mph
85th-percentile speed
22 ‐ 50 MPH
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Class 1
13,324
3 Yes
35 MPH
41 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Commercial/Industrial
/Park
Uncontrolled Crosswalks
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 29 mph to 38 mph and the recommended speed limit falls above this range. The collision rate is above the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
58 57

0.87 21

1.65 70
Varies Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
16 18
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ATTACHMENT 4
LOCATION 77 - SPRECKELS AVE

BETWEEN YOSEMITE AVE AND MOFFAT BLVD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:12:51 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 5
Speed Range 17 0 4
50th percentile speed 18 0 9
85th percentile speed 19 0 1
10 mph pace speed 20 1 2
% in pace speed 21 0 3
22 1 1
23 0 1
24 3 0
25 6 0
26 3 0
27 5 0
28 10 1
29 1 0
30 12 0
31 6 0
32 11 0
33 5 0
34 8 0
35 4 0
103
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:
37 43
42 41
40 39
38 25 ‐ 34  MPH
65%
TOTAL
49 50
51 52
48 47
46 45
44 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
103
6/30/2022
Both
10:15 AM
36 11:40 AM
TANNEHILL DRIVE ‐ Main St to Atherton Dr
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
20 ‐ 48 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Both Sides
1,054
3 Yes
32 MPH
38 MPH
Adjacent Land Use:

Divided Median:

Low Density
Residential/Public/Quasi
Public/Park Uncontrolled Crosswalks
The 85th‐percentile speed of 38 mph indicates a 40 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 25 mph to 34 mph and the recommended speed limit falls within this range.

Speed Limit Change: No
Speed Justification:
54 53

1.52 0

0.00 44
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes:
0 2
4 6
8 10
12 14
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ATTACHMENT 4
LOCATION 78 - FIGURE A - TANNEHILL DR

BETWEEN MAIN ST AND ATHERTON DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:13:11 AM ATTACHMENT 4
LOCATION 78 - FIGURE B - TANNEHILL DR

BETWEEN MAIN ST AND ATHERTON DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:13:26 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 8
Speed Range 17 0 1
50th percentile speed 18 0 4
85th percentile speed 19 0 0
10 mph pace speed 20 0 1
% in pace speed 21 0 0
22 2 1
23 0 0
24 1 0
25 3 0
26 9 0
27 9 0
28 11 0
29 6 0
30 9 0
31 6 0
32 10 0
33 9 0
34 11 0
35 7 0
108
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
Concrete Median/No Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density
Residential/Park

0.75 1

0.92 44
Both Sides Bike Lanes:

Expected Collisions Rate:
22 ‐ 42 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
1,329
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
108
6/30/2022
Both
11:55 AM
36 1:55 PM
TESORO DR/SERENO DR ‐ Atherton Dr TO Atherton Dr
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 " Residence District" of the CVC. A speed limit of 25 mph is recommended.
31 MPH
35 MPH
26 ‐ 35  MPH
81%
TOTAL
52 38
48 47
46 45
44 Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 26 mph to 35 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 0
2 4
6 8
10 12
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ATTACHMENT 4
LOCATION 79 - TESORO DR / SERENO DR

BETWEEN ATHERTON DR AND ATHERTON DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 54-79.dwg, 4/20/2023 9:13:41 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 2
Speed Range 17 0 0
50th percentile speed 18 1 0
85th percentile speed 19 2 0
10 mph pace speed 20 3 0
% in pace speed 21 3 0
22 2 0
23 7 0
24 5 0
25 8 0
26 2 0
27 7 0
28 15 0
29 13 0
30 12 0
31 8 0
32 6 0
33 5 0
34 4 0
35 2 0
107
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2 WB 1‐2
TWLTL
No
Comments:

The 85th‐percentile speed of 32 mph indicates a 30 mph speed limit. The 10 mph pace ranges from 23 mph to 32 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
54 53

0.33 1

1.62 52 ‐ 64
Varies Bike Lanes:

Expected Collisions Rate:

Low Density
Residential/Public/Quasi
Public
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
18 ‐ 36 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/18/22
Flat
None
1,704
3 Yes
28 MPH
32 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
30 MPH
107
12/6/2022
Both
9:45 AM
36 12:30 AM
THOMAS ST ‐ Winters Dr to Fishback Rd
Posted Speed Limit: 30 mph
Clear/Dry
85th‐percentile speed
23 ‐ 32  MPH
78%
TOTAL
49 50
51 52
48 47
46 45
44 37
43 42
41 40
39 38
0 2
4 6
8 10
12 14
16 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ATTACHMENT 4
LOCATION 80 - THOMAS ST

BETWEEN WINTERS DR AND FISHBACK RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:14:34 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 3
Speed Range 17 0 2
50th percentile speed 18 0 2
85th percentile speed 19 0 1
10 mph pace speed 20 0 1
% in pace speed 21 0 1
22 2 1
23 3 0
24 4 0
25 6 0
26 7 0
27 6 0
28 9 0
29 8 0
30 11 0
31 8 0
32 10 0
33 6 0
34 4 0
35 5 0
100
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
Concrete Median/No Median
Yes
Comments:
37 43
42 41
40 39
38 24 ‐ 33  MPH
75%
TOTAL
49 50
51 52
48 47
46 45
44 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
100
11/30/2022
Both
9:15 AM
36 11:45 AM
TRAILWOOD AVE ‐ Northgate Dr to Louise Ave
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
22 ‐ 42 MPH
55 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/14/22
Flat
None
1,329
3 Yes
30 MPH
35 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Low Density Residential
Uncontrolled Crosswalks
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is above the expected rate. The 10 mph pace ranges from 24 mph to 33 mph and the recommended speed limit falls within this range.

Speed Limit Change: No
Speed Justification:
54 53

0.57 2

2.41 45
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ATTACHMENT 4
LOCATION 81 - TRAILWOOD AVE

BETWEEN NORTHGATE DR AND LOUISE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:14:46 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 16 0 7
Speed Range 17 0 5
50th percentile speed 18 0 4
85th percentile speed 19 0 9
10 mph pace speed 20 0 8
% in pace speed 21 0 4
22 0 7
23 0 10
24 0 13
25 0 9
26 0 4
27 0 8
28 0 3
29 0 7
30 0 6
31 0 0
32 2 3
33 0 2
34 1 4
35 0 0
116
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 2
TWLTL/Concrete Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/High Density
Residential/Commercial
Mixed Use Uncontrolled Crosswalks

0.78 6

1.04 53 ‐ 65
Varies Bike Lanes:

Expected Collisions Rate:
32 ‐ 54 MPH
55 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
6,762
3 Yes
54 53

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
116
7/7/2022
Both
11:10 AM
36 12:25 PM
UNION RD ‐ Shady Pines St to Lathrop Rd
Posted Speed Limit: 45 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
44 MPH
49 MPH
36 ‐ 45  MPH
66%
TOTAL
38 48
47 46
45 44
The 85th‐percentile speed of 49 mph indicates a 50 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 45 mph. The 10 mph pace ranges from 36 mph to 45 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
37 43
42 41
40 39
49 50
51 52
0 2
4 6
8 10
12 14
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ATTACHMENT 4
LOCATION 82 - UNION RD

BETWEEN SHADY PINES ST AND LATHROP RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:15:06 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 25 0 7
Speed Range 26 1 3
50th percentile speed 27 0 4
85th percentile speed 28 1 8
10 mph pace speed 29 0 1
% in pace speed 30 2 2
31 1 2
32 4 0
33 6 0
34 8 1
35 11 0
36 13 0
37 13 0
38 20 1
39 13 0
40 21 0
41 23 0
42 9 0
43 19 0
44 12 0
206
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 2 SB 2
TWLTL/Concrete Median
No
Comments:

The 85th‐percentile speed of 44 mph indicates a 45 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit remains at 40 mph. The 10 mph pace ranges from 35 mph to 44 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: No
Speed Justification:
63 62

1.00 9

0.57 65
Both Sides Bike Lanes:

Expected Collisions Rate:

Low/High Density
Residential/Commercial/
Public/Quasi Public
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
26 ‐ 58 MPH
64 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Both Sides
14,486
3 Yes
40 MPH
44 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
206
7/7/2022
Both
12:20 AM
45 1:10 PM
UNION RD ‐ Lathrop Rd to Louise Ave
Posted Speed Limit: 40 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.
35 ‐ 44  MPH
75%
TOTAL
58 59
60 61
57 56
55 54
53 46
52 51
50 49
48 47
0 5
10 15
20 25
26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58
ATTACHMENT 4
LOCATION 83 - FIGURE A - UNION RD

BETWEEN LATHROP RD AND LOUISE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:15:26 AM ATTACHMENT 4
LOCATION 83 - FIGURE B - UNION RD

BETWEEN LATHROP RD AND LOUISE AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:15:46 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 22 0 11
Speed Range 23 0 10
50th percentile speed 24 1 0
85th percentile speed 25 2 1
10 mph pace speed 26 0 0
% in pace speed 27 3 4
28 4 0
29 6 0
30 10 0
31 11 0
32 11 0
33 11 0
34 4 0
35 13 0
36 16 0
37 20 0
38 18 0
39 17 0
40 27 0
41 12 0
212
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 2 SB 2
TWLTL/Concrete Median/No Median
No
Comments:

The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 40 mph.

Speed Limit Change: No
Speed Justification:
43 49
48 47
46 45
55 56
57 Low/Medium/High Density
Residential/Commercial/
Park/Public/Quasi Public
58 44
54 53
52 51
50 37 MPH
41 MPH
32 ‐ 41  MPH
70%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
40 MPH
212
7/6/2022
Both
11:15 AM
42 12:15 PM
UNION RD ‐ Louise Ave to Center St
Posted Speed Limit: 40 mph
Clear/Dry
85th‐percentile speed
24 ‐ 47 MPH
61 1.46 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
8/2/22
Flat
None
25,205
3 Yes
60 59

1.00 28

1.01 65
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 5
10 15
20 25
30 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ATTACHMENT 4
LOCATION 84 - UNION RD

BETWEEN LOUISE AVE AND CENTER ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:16:06 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 22 0 42
Speed Range 23 0 20
50th percentile speed 24 0 12
85th percentile speed 25 0 13
10 mph pace speed 26 0 5
% in pace speed 27 0 4
28 0 3
29 0 3
30 0 3
31 1 1
32 0 1
33 6 1
34 23 1
35 55 0
36 51 0
37 39 0
38 33 0
39 49 0
40 47 0
41 40 0
453
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 2 SB 2
TWLTL
No
Comments:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 34 mph to 43 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
60 59

0.53 16

1.25 65
Both Sides Bike Lanes:

A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district.

State Average Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Low/Medium/High
Density
Residential/Commercial Uncontrolled Crosswalks
31 ‐ 54 MPH
61 1.10 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/3/22
Flat
None
22,110
3 Yes
39 MPH
42 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
35 MPH
453
3/27/2023
Both
3:03 PM
42 3:33 PM
UNION RD ‐ Center St to Wawona St
Posted Speed Limit: 35 mph
Clear/Dry
34 ‐ 43  MPH
88%
TOTAL
55 56
57 58
54 53
52 51
50 43
49 48
47 46
45 44
0 10
20 30
40 50
60 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 ATTACHMENT 4
LOCATION 85 - UNION RD

BETWEEN CENTER ST AND WAWONA ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:16:26 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 24 0 5
Speed Range 25 1 2
50th percentile speed 26 0 2
85th percentile speed 27 1 2
10 mph pace speed 28 2 1
% in pace speed 29 6 1
30 5 0
31 9 0
32 13 1
33 12 0
34 20 0
35 17 0
36 21 0
37 17 0
38 15 0
39 14 0
40 13 0
41 11 0
42 7 0
43 5 0
203
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1‐2 SB 1‐2
TWLTL/Concrete Median/No Median
Yes
Comments:

Varies
Low/High Density
Residential/Public/Quasi
Public/Commercial
Mixed Use
Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. However, due to fronting residential district and the existing uncontrolled crosswalks, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit is decreased to 35 mph.

Speed Limit Change: Yes
Speed Justification:
62 61

1.00 18

0.72 64 ‐ 100
Bike Lanes:
56 55
54 63

1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
8/11/22
Flat
None
22,908
3 Yes
Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
203
7/7/2022
Both
1:25 PM
UNION RD ‐ Wawona St to 400 ft. south of Sephos St
44 2:10 PM
Posted Speed Limit:

Clear/Dry
NB 35‐40 mph / SB 40 mph
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district and the existing uncontrolled crosswalks.
53 52
TOTAL
57 58
59 60
45 51
50 49
48 47
46 32 ‐ 41  MPH
75%
25 ‐ 52 MPH
36 MPH
41 MPH
0 5
10 15
20 25
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ATTACHMENT 4
LOCATION 86 - FIGURE A - UNION RD

BETWEEN WAWONA ST AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:16:51 AM ATTACHMENT 4
LOCATION 86 - FIGURE B - UNION RD

BETWEEN WAWONA ST AND SOUTH CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:17:16 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 24 0 1
Speed Range 25 0 1
50th percentile speed 26 0 1
85th percentile speed 27 1 0
10 mph pace speed 28 0 2
% in pace speed 29 3 0
30 3 0
31 2 0
32 4 0
33 14 0
34 16 0
35 6 0
36 3 0
37 10 0
38 10 0
39 7 0
40 5 0
41 5 0
42 3 0
43 6 0
103
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/Concrete Median
No
Comments:

A 5‐mph reduction from the 85th‐percentile speed due to lack of bike lanes. 27 ‐ 48 MPH 45
Low/High Density
Residential/Industrial/
Commercial Mixed Use
58 59
60 46
56 55
54 53
52 57
51 50
49 48
47 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
103
11/30/2022
Both
1:55 PM
VAN RYN AVE ‐ Industrial Park Dr to Woodward Ave
44 3:15 PM
Posted Speed Limit: 35 mph
Clear/Dry
Speed Limit Change:

Number of Lanes:

Uncontrolled Crosswalks
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. However, due to the lack of continuous bike lane, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 32 mph to 41 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Justification:
62 61
Divided Median:
63 1.18 c/mvm
None
Flat
None
4,012
3 41
Varies Bike Lanes:

Adjacent Land Use:

No
Yes
TOTAL
Expected Collisions Rate:

0.65 2

0.70 36 MPH
41 MPH
32 ‐ 41  MPH
78%
Count Date:

ANALYSIS INFORMATION
7/12/22
0 2
4 6
8 10
12 14
16 18
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ATTACHMENT 4
LOCATION 87 - VAN RYN AVE

BETWEEN INDUSTRIAL PARK DR AND WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:17:41 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 3
Speed Range 21 0 2
50th percentile speed 22 0 1
85th percentile speed 23 1 0
10 mph pace speed 24 2 0
% in pace speed 25 2 0
26 1 1
27 1 0
28 4 1
29 6 0
30 5 0
31 6 0
32 6 0
33 9 0
34 6 0
35 14 0
36 10 0
37 6 0
38 9 0
39 8 0
104
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/No Median
No
Comments:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks

1.25 0

0.00 35 ‐ 65
Varies Bike Lanes:

Expected Collisions Rate:
23 ‐ 48 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
None
1,218
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
104
6/29/2022
Both
11:20 AM
40 12:20 PM
Clear/Dry
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.

VASCONCELLOS AVENUE, Louise Ave to 545 ft. south of Serene Way 35 MPH
39 MPH
30 ‐ 39  MPH
76%
TOTAL
55 56
42 52
51 50
49 48
The 85th‐percentile speed of 39 mph indicates a 40 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 30 mph to 39 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
Low/Medium/High
Density
Residential/Commercial
0 2
4 6
8 10
12 14
16 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ATTACHMENT 4
LOCATION 88 - FIGURE A - VASCONCELLOS AVE

BETWEEN LOUISE AVE AND SOUTHERN END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:18:06 AM ATTACHMENT 4
LOCATION 88 - FIGURE B - VASCONCELLOS AVE

BETWEEN LOUISE AVE AND SOUTHERN END
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:18:31 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 3
Speed Range 21 0 2
50th percentile speed 22 1 2
85th percentile speed 23 0 1
10 mph pace speed 24 2 1
% in pace speed 25 2 0
26 3 1
27 9 0
28 7 0
29 11 0
30 8 0
31 10 0
32 17 0
33 18 0
34 17 0
35 13 0
36 7 0
37 6 0
38 3 0
39 3 0
147
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
Yes
Comments:

Expected Collisions Rate:

Low/High Denisty
Residential/Park/Public/
Quasi Public
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
58 57

1.00 4

1.06 44
Both Sides Bike Lanes:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
22 ‐ 46 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
None
3,458
3 Yes
33 MPH
36 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
147
7/6/2022
Both
11:40 AM
WAWONA STREET, Main St to Union Rd
40 12:40 PM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
27 ‐ 36  MPH
80%
TOTAL
53 54
55 56
52 51
50 49
48 41
47 46
45 44
43 42
0 2
4 6
8 10
12 14
16 18
20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ATTACHMENT 4
LOCATION 89 - FIGURE A - WAWONA ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:18:56 AM ATTACHMENT 4
LOCATION 89 - FIGURE B - WAWONA ST

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:19:11 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 1
Speed Range 21 0 2
50th percentile speed 22 0 3
85th percentile speed 23 0 2
10 mph pace speed 24 3 1
% in pace speed 25 2 0
26 4 1
27 7 0
28 5 0
29 7 0
30 13 0
31 15 0
32 14 0
33 11 0
34 11 0
35 7 0
36 7 0
37 4 0
38 7 0
39 4 0
131
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL/No Median
Yes
Comments:

Commercial/Very Low/Low
Density Residential/
Public/Quasi Public
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks

0.97 2

0.53 45 ‐ 62
Varies Bike Lanes:

Expected Collisions Rate:
24 ‐ 46 MPH
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
8/9/22
Flat
Varies
3,526
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
131
8/9/2022
Both
12:40 PM
WAWONA STREET, Union Rd to Airport Way
40 1:40 PM
Clear/Dry
Posted Speed Limit: 25 mph
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
32 MPH
38 MPH
27 ‐ 36  MPH
74%
TOTAL
56 42
52 51
50 49
48 The 85th‐percentile speed of 38 mph indicates a 40 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 0
2 4
6 8
10 12
14 16
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 ATTACHMENT 4
LOCATION 90 - FIGURE A - WAWONA ST

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:19:26 AM ATTACHMENT 4
LOCATION 90 - FIGURE B - WAWONA ST

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:19:41 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Posted Speed Limit:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 1 4
Speed Range 21 1 3
50th percentile speed 22 0 1
85th percentile speed 23 1 0
10 mph pace speed 24 2 2
% in pace speed 25 2 0
26 6 0
27 3 0
28 6 0
29 4 0
30 8 0
31 9 0
32 11 0
33 5 0
34 5 0
35 8 0
36 12 0
37 4 0
38 2 0
39 3 0
103
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:

Low Density
Residential/Park
The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is above the expected rate. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls below this range.

No
Speed Justification:
58 57

0.42 2

3.98 44
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
20 ‐ 44 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
1,092
3 Yes
32 MPH
37 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
103
11/30/2022
Both
10:00 AM
WELLINGTON AVE, Atherton Dr to Woodward Ave
40 11:55 AM
25 mph
Clear/Dry
Speed Limit Change:

This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
28 ‐ 37  MPH
70%
TOTAL
53 54
55 56
52 51
50 49
48 41
47 46
45 44
43 42
0 2
4 6
8 10
12 14
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 91 - WELLINGTON AVE

BETWEEN ATHERTON DR AND WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:19:56 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 5
Speed Range 21 0 3
50th percentile speed 22 3 3
85th percentile speed 23 0 1
10 mph pace speed 24 1 1
% in pace speed 25 3 0
26 6 0
27 1 0
28 7 0
29 5 0
30 10 0
31 9 0
32 6 0
33 7 0
34 4 0
35 9 0
36 7 0
37 2 0
38 2 0
39 6 0
101
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
No
No
Comments:

The 85th‐percentile speed of 39 mph indicates a 40 mph speed limit. Based on CVC Section 22358.6(c), the 85th‐ percentile speed was rounded down to the nearest 5 mph increment. Therefore, it is recommended that the posted speed limit increased to 35 mph. The 10 mph pace ranges from 28 mph to 37 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Speed Limit Change: Yes
Speed Justification:
41 47
46 45
44 43
53 54
55 56
42 52
51 50
49 48
32 MPH
39 MPH
28 ‐ 37  MPH
65%
TOTAL
57 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
101
11/16/2022
Both
1:25 PM
WETMORE STREET, Main St to Mellon Ave
40 3:20 PM
Posted Speed Limit: 30 mph
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

Downtown/Public/Quasi
Public/Industrial
22 ‐ 44 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/31/22
Flat
None
951
3 Yes
58 0.37
0 0.00
50 None Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 2
4 6
8 10
12 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 92 - WETMORE ST

BETWEEN MAIN ST AND MELLON AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:20:16 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather: Clear/Dry
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 1
Speed Range 21 0 1
50th percentile speed 22 0 0
85th percentile speed 23 1 0
10 mph pace speed 24 2 0
% in pace speed 25 5 0
26 3 0
27 4 0
28 7 0
29 8 0
30 9 0
31 8 0
32 10 0
33 9 0
34 7 0
35 9 0
36 6 0
37 4 0
38 4 0
39 4 0
102
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL
Yes
Comments:
41 47
46 45
44 43
42 51
50 49
48 Low Density
Residential/Business
Professional/Commercial/P
ublic/Quasi Public
53 54
55 56
52 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
102
6/30/2022
Both
1:45 PM
WINTERS DRIVE, Yosemite Ave to Wawona St
40 2:00 PM
Posted Speed Limit: 35 mph
Speed Limit Change:
85th‐percentile speed
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
9/8/22
Flat
Both Sides
4,350
3 Yes
TOTAL
Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
23 ‐ 41 MPH
32 MPH
36 MPH
27 ‐ 36  MPH
75%
The 85th‐percentile speed of 36 mph indicates a 35 mph speed limit. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 35 mph.

No
Speed Justification:
58 57

0.50 3

1.26 65
Both Sides Bike Lanes:

Expected Collisions Rate:

Number of Lanes:
0 2
4 6
8 10
12 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ATTACHMENT 4
LOCATION 93 - WINTERS DR

BETWEEN YOSEMITE AVE AND WAWONA ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:20:31 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 3
Speed Range 21 0 2
50th percentile speed 22 0 1
85th percentile speed 23 0 0
10 mph pace speed 24 1 0
% in pace speed 25 2 0
26 5 0
27 8 0
28 6 0
29 8 0
30 11 0
31 9 0
32 13 0
33 10 0
34 9 0
35 9 0
36 9 0
37 7 0
38 3 0
39 4 0
120
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
Yes
Comments:
41 47
46 45
44 43
42 27 ‐ 36  MPH
77%
TOTAL
53 54
55 56
52 51
50 49
48 58
57 37 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
120
6/30/2022
Both
11:30 AM
WINTERS DRIVE, Wawona St to Daniels St
40 12:30 PM
Posted Speed Limit: 25 mph
Clear/Dry
This roadway meets the requirements of Section 515 "Residence District" of the CVC. A speed limit of 25 mph is recommended.
24 ‐ 42 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/18/22
Flat
Both Sides
2,779
3 Yes
32 MPH
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, it is recommended that the speed limit remains 25 mph. The collision rate is below the expected rate. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range.

Low Density Residential
Speed Limit Change: No
Speed Justification:

0.34 1

0.97 56
Both Sides Bike Lanes:

Expected Collisions Rate:
0 2
4 6
8 10
12 14
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ATTACHMENT 4
LOCATION 94 - WINTERS DR

BETWEEN WAWONA ST AND DANIELS ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 80-94.dwg, 4/20/2023 9:20:51 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 12
Speed Range 21 0 5
50th percentile speed 22 0 7
85th percentile speed 23 0 12
10 mph pace speed 24 0 6
% in pace speed 25 0 13
26 0 6
27 0 8
28 0 6
29 0 2
30 0 5
31 1 0
32 0 3
33 0 1
34 3 3
35 3 1
36 5 0
37 3 1
38 5 0
39 7 0
118
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median/No Median
Yes
Comments:

1.78 7

0.60 Low/Medium Density
Residential/Park/Industrial/
Business Industrial
Park/Commercial/Mixed
Use
Varies
Expected Collisions Rate:
24 ‐ 65
Bike Lanes:

No
Speed Justification:
58 57
49 48
41 47
46 45
44 43
42 Number of Lanes: Adjacent Land Use:

Based on CVC Section 22358.6(c), the 85th‐percentile speed was rounded down to the nearest 5 mph increment. No further reduction is allowed. Therefore, it is recommended that the posted speed limit remains at 45 mph. The 10 mph pace ranges from 39 mph to 48 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate.

Uncontrolled Crosswalks
31 ‐ 57 MPH
43 MPH
48 MPH
39 ‐ 48  MPH
69%
53 54
55 56
52 51
50 59

1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
None
5,972
3 Yes
TOTAL
Divided Median:

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
118
6/30/2022
Both
1:25 PM
WOODWARD AVE, Moffat Blvd to Main St
40 3:20 PM
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

Posted Speed Limit: 45 mph
Clear/Dry
Speed Limit Change:
0 2
4 6
8 10
12 14
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 ATTACHMENT 4
LOCATION 95 - FIGURE A - WOODWARD AVE

BETWEEN MOFFAT BLVD AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:21:49 AM ATTACHMENT 4
LOCATION 95 - FIGURE B - WOODWARD AVE

BETWEEN MOFFAT BLVD AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:22:01 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather
Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 11
Speed Range 21 0 9
50th percentile speed 22 0 20
85th percentile speed 23 0 13
10 mph pace speed 24 0 17
% in pace speed 25 0 16
26 0 9
27 0 15
28 0 12
29 0 7
30 0 14
31 0 5
32 0 5
33 0 5
34 0 2
35 0 3
36 0 1
37 4 0
38 3 0
39 4 0
175
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL/Concrete Median/No Median
No
Comments:

Number of Lanes: Adjacent Land Use: Low Density Residential Divided Median:

Uncontrolled Crosswalks

1.00 5

0.97 41
Varies Bike Lanes:

Expected Collisions Rate:
37 ‐ 56 MPH
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
4,709
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
175
6/30/2022
Both
11:25 AM
WOODWARD AVE, Main St to Union Rd
40 12:25 PM
Posted Speed Limit: 45 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to the existing school crossing and the lack of bike lanes.
45 MPH
50 MPH
41 ‐ 50  MPH
75%
TOTAL
56 42
52 51
50 49
48 The 85th‐percentile speed of 50 mph indicates a 50 mph speed limit. However, due to the existing school crossing and the lack of continuous bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 41 mph to 50 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 45 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 0
5 10
15 20
25 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 ATTACHMENT 4
LOCATION 96 - FIGURE A - WOODWARD AVE

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:22:16 AM ATTACHMENT 4
LOCATION 96 - FIGURE B - WOODWARD AVE

BETWEEN MAIN ST AND UNION RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:22:31 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 12
Speed Range 21 0 8
50th percentile speed 22 0 1
85th percentile speed 23 0 0
10 mph pace speed 24 0 0
% in pace speed 25 0 0
26 0 0
27 1 0
28 11 0
29 9 0
30 13 0
31 25 0
32 34 0
33 31 0
34 37 0
35 33 0
36 38 0
37 25 0
38 13 0
39 11 0
302
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
TWLTL/Concrete Median
Yes
Comments:

The 85th‐percentile speed of 37 mph indicates a 35 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 30 mph to 39 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 30 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 56
42 52
51 50
49 48
34 MPH
37 MPH
30 ‐ 39  MPH
86%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
30 MPH
302
4/17/2023
Both
1:50 PM
WOODWARD AVE, Union Rd to Airport Way
40 3:00 PM
Posted Speed Limit: 30 mph
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district. 27 ‐ 42 MPH
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Varies
3,891
3 Yes
58 57

1.00 5

1.17 41
Varies Bike Lanes:

Expected Collisions Rate:

Low/Medium/High Density
Residential/Commercial
Mixed Use
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 5
10 15
20 25
30 35
40 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
ATTACHMENT 4
LOCATION 97 - FIGURE A - WOODWARD AVE

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:22:46 AM ATTACHMENT 4
LOCATION 97 - FIGURE B - WOODWARD AVE

BETWEEN UNION RD AND AIRPORT WAY
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:23:01 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 2
Speed Range 28 0 3
50th percentile speed 29 4 2
85th percentile speed 30 4 2
10 mph pace speed 31 9 1
% in pace speed 32 7 0
33 6 2
34 9 0
35 24 0
36 23 0
37 28 0
38 21 0
39 21 0
40 32 0
41 30 0
42 39 0
43 8 0
44 7 0
45 12 0
46 5 0
301
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
Concrete Median/No Median
Yes
Comments:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 34 mph to 43 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph as posted on the County right of way.

Speed Limit Change: Yes
Speed Justification:
65 64

1.00 2

0.24 28 ‐ 53
Varies Bike Lanes:

A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district.

State Average Rate:

Number of Lanes: Adjacent Land Use:

Uncontrolled Crosswalks
Divided Median:
29 ‐ 53 MPH
66 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
Varies
7,672
3 Yes
TOTAL
57 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
301
4/5/2023
Both
1:45 PM
WOODWARD AVE, Airport Way to McKinley Ave
47 2:20 PM
Posted Speed Limit:

Clear/Dry
35 mph County & None City
55 39 MPH
42 MPH
34 ‐ 43  MPH
78%
48 54
53 52
51 50
60 61
62 63
49 59
58 Low/High Density
Residential/Commercial
56 0
5 10
15 20
25 30
35 40
45 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ATTACHMENT 4
LOCATION 98 - WOODWARD AVE

BETWEEN AIRPORT WAY AND MCKINLEY AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:23:17 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 27 0 8
Speed Range 28 0 8
50th percentile speed 29 0 8
85th percentile speed 30 0 6
10 mph pace speed 31 0 4
% in pace speed 32 0 5
33 0 4
34 1 2
35 1 2
36 0 2
37 2 2
38 3 1
39 4 1
40 5 0
41 5 0
42 6 0
43 6 1
44 7 0
45 8 0
46 6 0
108
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1
Concrete Median/No Median
Yes
Comments:
63 51
50 The 85th‐percentile speed of 52 mph indicates a 50 mph speed limit. However, to be within 10 mph of adjacent segments, and due to the lack of bike lanes, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 41 mph to 50 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit becomes 45 mph. 65 64
60 61
62 59
58 57
56 55

1.43 Expected Collisions Rate:

Speed Justification:
48 54
53 52
34 ‐ 63 MPH
46 MPH
52 MPH
41 ‐ 50  MPH
63%
49 Speed Limit Change: Yes
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
108
7/6/2022
Both
10:20 AM
WOODWARD AVE, McKinley Ave to South Woodward Ave
47 11:20 AM
A 5‐mph reduction from the 85th‐percentile speed to be within 10 mph of adjacent segments, and due to the lack of bike lanes.

Clear/Dry
Posted Speed Limit: None
66 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
3,751
3 Yes
Divided Median:
4 0.68
Uncontrolled Crosswalks
25 None Bike Lanes:

Low/High Density
Residential/Public/Quasi
Public
Number of Lanes: Adjacent Land Use:
0 1
2 3
4 5
6 7
8 9
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 ATTACHMENT 4
LOCATION 99 - FIGURE A - WOODWARD AVE
BETWEEN MCKINLEY AVE AND S. WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:23:32 AM ATTACHMENT 4
LOCATION 99 - FIGURE B - WOODWARD AVE
BETWEEN MCKINLEY AVE AND S. WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:23:47 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 7
Speed Range 21 0 3
50th percentile speed 22 0 3
85th percentile speed 23 1 3
10 mph pace speed 24 1 2
% in pace speed 25 1 2
26 2 1
27 3 2
28 3 0
29 3 0
30 3 0
31 7 0
32 9 0
33 5 0
34 9 0
35 9 0
36 5 0
37 7 0
38 6 0
39 5 0
102
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
No
No
Comments:
41 47
46 45
44 43
42 31 ‐ 40  MPH
68%
TOTAL
53 54
55 56
52 51
50 49
48 41 MPH

VEHICLE SPEED DATA RECOMMENDED SPEED
Speed
35 MPH
102
6/29/2022
Both
12:05 PM
South WOODWARD AVE, Woodward Ave to Williamson Rd
40 1:40 PM
Posted Speed Limit: 35 MPH
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district.

Uncontrolled Crosswalks
23 ‐ 47 MPH
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/21/22
Flat
None
891
3 Yes
35 MPH
None
Number of Lanes: Adjacent Land Use:

Divided Median:

Expected Collisions Rate:

Low/Medium Density
Residential/Open Space
The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 31 mph to 40 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains 35 mph.

Speed Limit Change: No
Speed Justification:
58 57

0.43 0

0.00 25
Bike Lanes:
0 1
2 3
4 5
6 7
8 9
10 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ATTACHMENT 4
LOCATION 100 - S. WOODWARD AVE

BETWEEN WOODWARD AVE AND WILLIAMSON RD
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:24:02 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 22
Speed Range 21 0 18
50th percentile speed 22 0 13
85th percentile speed 23 0 6
10 mph pace speed 24 0 5
% in pace speed 25 0 4
26 0 3
27 0 4
28 0 6
29 0 4
30 6 0
31 9 0
32 3 0
33 10 0
34 18 0
35 59 0
36 41 0
37 34 0
38 32 0
39 38 0
335
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 2‐3 WB 1‐2
TWLTL/Concrete Median
No
Comments:

The 85th‐percentile speed of 41 mph indicates a 40 mph speed limit. However, due to fronting residential and Commercial district and proximity to school, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 33 mph to 42 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 56
42 52
51 50
49 48
37 MPH
41 MPH
33 ‐ 42  MPH
85%
TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
335
4/5/2023
Both
9:50 AM
YOSEMITE AVE, State Route 99 to Powers Ave
40 10:30 AM
Posted Speed Limit: 35 MPH
Clear/Dry
A 5‐mph reduction from the 85th‐percentile speed due to fronting residential and Commercial district and proximity to school.
30 ‐ 49 MPH
59 1.46 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Varies
23,860
3 Yes
58 57

0.70 19

1.04 67 ‐ 106
Both Sides Bike Lanes:

State Average Rate:

Commercial/Low Density
Residential
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks
0 10
20 30
40 50
60 70
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 ATTACHMENT 4
LOCATION 101 - YOSEMITE AVE
BETWEEN SR-99 AND POWERS AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:24:17 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 3 1
Speed Range 21 1 0
50th percentile speed 22 6 0
85th percentile speed 23 12 0
10 mph pace speed 24 22 0
% in pace speed 25 63 0
26 40 0
27 42 0
28 36 0
29 29 0
30 11 0
31 7 0
32 2 0
33 4 0
34 4 0
35 1 0
36 2 0
37 1 0
38 1 0
39 1 0
289
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1
TWLTL/No Median
Yes
Comments:
47 46
51 50
58 57
TOTAL
53 54
55 56
52 Commercial/Public/Quasi
Public/Downtown

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
289
4/5/2023
Both
9:15 AM
YOSEMITE AVE, Powers Ave to Main St
40 9:45 AM
Clear/Dry
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

Posted Speed Limit: 25 MPH
20 ‐ 40 MPH
45 44
43 42
41 Divided Median:

Uncontrolled Crosswalks
Speed Limit Change: No
29 MPH
22 ‐ 31  MPH
93%
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/14/22
Flat
Varies
15,236
3 Yes
Based on CVC Section 22358.6(c), the 85th‐percentile speed was rounded down to the nearest 5 mph increment. No further reduction is allowed. Therefore, it is recommended that the posted speed limit remains at 25 mph. The 10 mph pace ranges from 22 mph to 31 mph, and the recommended speed limit falls within this range. The collision rate is above the expected rate.

Speed Justification:
24 2.28
46 ‐ 60
Both Sides Bike Lanes:

State Average Rate:

Number of Lanes: Adjacent Land Use:

0.63 26 MPH
49 48
0 10
20 30
40 50
60 70
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ATTACHMENT 4
LOCATION 102 - YOSEMITE AVE

BETWEEN POWERS AVE AND MAIN ST
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:24:37 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 5
Speed Range 21 0 1
50th percentile speed 22 0 1
85th percentile speed 23 0 1
10 mph pace speed 24 0 1
% in pace speed 25 7 0
26 5 0
27 11 0
28 19 0
29 30 0
30 53 0
31 35 0
32 57 0
33 26 0
34 14 0
35 13 0
36 10 0
37 5 0
38 10 0
39 3 0
307
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1 WB 1‐2
TWLTL/Concrete Median/No Median
Yes
Comments:

Low/Medium Density
Residential/Commercial/
Public/Quasi
Public/Downtown
Number of Lanes: Adjacent Land Use:

Divided Median:

Uncontrolled Crosswalks

0.89 22

1.54 46
Both Sides Bike Lanes:

State Average Rate:
25 ‐ 44 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
7/28/22
Flat
Varies
14,695
3 Yes
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
25 MPH
307
3/27/2023
Both
4:00 PM
YOSEMITE AVE, Main St to El Portal Ave
40 4:45 PM
Posted Speed Limit: 25 MPH
Clear/Dry
This roadway meets the requirements of Section 515 " Residence District" of the CVC. A speed limit of 25 mph is recommended.
31 MPH
35 MPH
27 ‐ 36  MPH
87%
TOTAL
42 52
51 50
49 48
The 85th‐percentile speed of 35 mph indicates a 35 mph speed limit. Since the roadway meets the requirements of Section 515 "Residence District" of the California Vehicle Code, and the collision rate is above the expected rate, it is recommended that the speed limit remains 25 mph. The 10 mph pace ranges from 27 mph to 36 mph and the recommended speed limit falls below this range.

Speed Limit Change: No
Speed Justification:
41 47
46 45
44 43
53 54
55 56
0 10
20 30
40 50
60 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 ATTACHMENT 4
LOCATION 103 - YOSEMITE AVE

BETWEEN MAIN ST AND EL PORTAL AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:24:52 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Posted Speed Limit:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 22
Speed Range 21 0 4
50th percentile speed 22 0 14
85th percentile speed 23 0 6
10 mph pace speed 24 0 2
% in pace speed 25 0 5
26 0 4
27 0 2
28 0 0
29 0 0
30 0 0
31 0 0
32 6 0
33 19 0
34 39 0
35 74 0
36 55 0
37 43 0
38 53 0
39 54 0
402
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 2
TWLTL/Concrete Median
No
Comments:
49 48
Yes
41 47
46 45
44 43
42 52
51 Medium Density
Residential/Commercial/
Mixed Use/Business
Professional/Public/Quasi
Public
TOTAL
50 53
54 55
56 VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
402
3/27/2023
Both
3:27 PM
YOSEMITE AVE, El Portal Ave to Winters Dr
40 3:58 PM
85th‐percentile speed rounded down to the nearest 5mph increment per CVC Section 22358.6(c). No further reduction is allowed.

Divided Median:
32 ‐ 47 MPH
59 1.18 c/mvm
Both Sides
Count Date:

ANALYSIS INFORMATION
8/3/22
Flat
Both Sides
21,902
3 39 MPH
Both Sides
State Average Rate:

Number of Lanes: Adjacent Land Use:
37 MPH
33 ‐ 42  MPH
94%
Uncontrolled Crosswalks
Based on CVC Section 22358.6(c), the 85th‐percentile speed was rounded down to the nearest 5 mph increment. No further reduction is allowed. Therefore, it is recommended that the posted speed limit remains at 35 mph. The 10 mph pace ranges from 33 mph to 42 mph, and the recommended speed limit falls within this range. The collision rate is above the expected rate.
35 MPH
Clear/Dry
Speed Limit Change: No
Speed Justification:
58 57

0.57 20

1.46 74 ‐ 81
Bike Lanes:
0 10
20 30
40 50
60 70
80 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
ATTACHMENT 4
LOCATION 104 - YOSEMITE AVE

BETWEEN EL PORTAL AVE AND WINTERS DR
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:25:07 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: NDS
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 18
Speed Range 21 0 25
50th percentile speed 22 0 26
85th percentile speed 23 0 20
10 mph pace speed 24 0 11
% in pace speed 25 0 7
26 0 5
27 0 8
28 0 6
29 0 6
30 0 3
31 2 5
32 3 3
33 1 0
34 2 0
35 6 0
36 8 0
37 8 0
38 19 0
39 16 0
208
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

EB 1‐2 WB 1‐2
TWLTL/Concrete Median/No Median
No
Comments:

Divided Median:

Uncontrolled Crosswalks
Med Density
Res/Commercial/Mixed
Use/Industrial/Public/
Quasi Public/Business
Professional
74 ‐ 78
Varies Bike Lanes:

Expected Collisions Rate:

Number of Lanes: Adjacent Land Use:
59 1.18 c/mvm
Varies
Count Date:

ANALYSIS INFORMATION
8/18/22
Flat
None
13,285
3 Yes

1.16 20

1.19 TOTAL

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
45 MPH
208
6/30/2022
Both
3:05 PM
YOSEMITE AVE, Winters Dr to Union Pacific Railroad (UPRR) 40 4:00 PM
85th‐percentile speed
54 55
41 MPH
46 MPH
36 ‐ 45  MPH
76%
42 52
51 50
49 48
Posted Speed Limit: 45 MPH
Speed Limit Change: No
56 44
43 The 85th‐percentile speed of 46 mph indicates a 45 mph speed limit. The 10 mph pace ranges from 36 mph to 45 mph and the recommended speed limit falls within this range. The collision rate is above the expected rate. Based on the 85th‐percentile speed, it is recommended that the posted speed limit remains at 45 mph.

Clear/Dry
Speed Justification:
41 47
46 45
31 ‐ 52 MPH
58 57
53 0
5 10
15 20
25 30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ATTACHMENT 4
LOCATION 105 - FIGURE A - YOSEMITE AVE

BETWEEN WINTERS DR AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:25:22 AM ATTACHMENT 4
LOCATION 105 - FIGURE B - YOSEMITE AVE

BETWEEN WINTERS DR AND WEST CITY LIMIT
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:25:37 AM ATTACHMENT 4
City of Manteca
2023 Engineering and Traffic Survey
Location:

Direction: Recorder: BD/FG
Survey Date: Weather:

Begin Time: End Time:

Summary Statistics Speed Number Number
Total Observed 20 0 20
Speed Range 21 0 35
50th percentile speed 22 0 24
85th percentile speed 23 0 8
10 mph pace speed 24 0 10
% in pace speed 25 0 7
26 0 6
27 0 3
28 0 2
29 0 2
30 0 2
31 0 1
32 0 1
33 2 0
34 10 0
35 25 0
36 33 0
37 35 0
38 32 0
39 29 0
287
Segment Length(mi): ADT:

Number of Collisions: Time Period: years
Calc. Collision Rate = collisions per million vehicle‐miles Street Width (ft): Driveway: Terrain:

Parking Conditions: Sidewalk:

NB 1 SB 1
TWLTL/Concrete Median/No Median
No
Comments:

Posted Speed Limit:
42 34 ‐ 43  MPH
87%
33 ‐ 52 MPH
39 MPH
42 MPH
Speed Justification:
41 35 MPH
TOTAL
53 54
55 56
58 57

VEHICLE SPEED DATA RECOMMENDED SPEED LIMIT
Speed
35 MPH
287
4/5/2023
Both
11:40 AM
40 12:15 PM
MAIN STREET between E Atherton Dr and E Woodward Ave
Clear/Dry
Speed Limit Change:

A 5‐mph reduction from the 85th‐percentile speed due to fronting residential district.

No
59 1.18 c/mvm
None
Count Date:

ANALYSIS INFORMATION
7/12/22
Flat
Varies
10,275
3 Yes
Adjacent Land Use:

Divided Median:

The 85th‐percentile speed of 42 mph indicates a 40 mph speed limit. However, due to fronting residential district, a downgrading of the speed limit by 5 mph is justified. The 10 mph pace ranges from 34 mph to 43 mph and the recommended speed limit falls within this range. The collision rate is below the expected rate. Therefore, it is recommended that the posted speed limit remains at 35 mph. 52 51
50 49
48 47
46 45
44 43
Number of Lanes: Low Density
Residential/Commercial/
Commercial Mixed Use Uncontrolled Crosswalks

1.50 0

0.00 24 ‐ 80
Varies Bike Lanes:

Expected Collisions Rate:
0 5
10 15
20 25
30 35
40 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 ATTACHMENT 4
LOCATION 106 - MAIN ST

BETWEEN ATHERTON DR AND WOODWARD AVE
\\utopia\Engr\PWENG\804 Traffic Engineering\804-05 Traffic Studies\2022 Speed Survey\Location Maps\Radar Map 95-106.dwg, 4/20/2023 9:25:52 AM ATTACHMENT 4

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