2023-03-13_item_5.1_public_hearing_to_consider_an_ordinance_amending_speed_limits_in_the_city_of_lathrop_opt

ITEM 5. 1

CITY MANAGER' S REPORT
MARCH 13, 2023 CITY COUNCIL REGULAR MEETING
ITEM: PUBLIC HEARING ( PUBLISHED NOTICE) TO

CONSIDER AN ORDINANCE AMENDING THE SPEED
LIMITS IN THE CITY OF LATHROP, TITLE 10
VEHICLES AND TRAFFIC, CHAPTER 10. 08 SPEED
LIMITS, SECTION 10. 08. 030 SPEED LIMITS OF THE

LATHROP MUNICIPAL CODE
RECOMMENDATION: City Council to Consider the Following:

1. Hold a Public Hearing; and

2. Introduction and First Reading of an Ordinance
of the City Council of the City of Lathrop
Amending Section 10. 08. 030 Speed Limits" of
the Lathrop Municipal Code
SUMMARY:

The California Vehicle Code ( CVC) Sections 22357 through 22364 and 40800 through 40808 require an Engineering and Traffic Survey ( Survey) to establish or update a legally enforceable speed limit on most California roads. Speed limits must be established within one year of acceptance of major City streets, as the current posted speed limit is based on design criteria, not a Survey. On June 2, 2021, City Council approved the funding and creation of Capital Improvement Project ( CIP) PS 22- 15, Citywide Engineering and Traffic Study.

Staff retained the services of a traffic engineering consultant, Crane Transportation Group ( CTG), to conduct the Surveys for the purpose of establishing legally enforceable speed limits on local streets. The proposed amended Ordinance Attachment A) sets enforceable speed limits for various high- volume streets in River Islands.

Staff requests that City Council hold a public hearing, consider all information and public testimony and, if determined to be appropriate, adopt an Ordinance amending Section 10. 08. 030 " Speed Limits" of the Lathrop Municipal Code.

BACKG ROU N D:

Pursuant to CVC Sections 22357 through 22364 and 40800 through 40808, law enforcement can only enforce speed limits posted on regulatory signs if they are listed identically in City Municipal Code and are based on a valid and current Survey prepared by a California- licensed traffic engineer.

CITY MANAGER' S REPORT PAGE 2
MARCH 13, 2023 CITY COUNCIL REGULAR MEETING

PUBLIC HEARING ( PUBLISHED NOTICE) TO CONSIDER AN ORDINANCE AMENDING THE SPEED LIMITS IN THE CITY OF LATHROP, TITLE 10 VEHICLES AND TRAFFIC, CHAPTER 10. 08 SPEED LIMITS, SECTION 10. 08. 030 Speed limit signs currently posted on these segments represent design speed, a calculation conducted to determine an initial speed limit for a road based upon its geometry, number of lanes, surrounding land use and other factors.

As traffic volumes on the subject streets have increased to a level supporting the collection of speed data to determine enforceable speed limits, City staff retained CTG to conduct the Surveys. The proposed amended Ordinance ( Attachment A) reflects the findings of the Surveys and could be utilized to set enforceable speed limits for various relatively high- volume streets in River Islands that had yet to be surveyed.

The CVC governs how Surveys are conducted and describes the basis for the proposed speed limits. Data is collected on actual vehicle speed data from at least 100 or more free flowing vehicles per segment in a three- hour period. The trafFic engineer then processes the data to determine important parameters such as the 85th percentile speed, 10 mile per hour ( mph) pace, and percentage of vehicles following the current posted speed limit. The traffic engineer also considers physical and environmental factors of the segment, such as the number of residential driveways, the proximity to schools, sun glare, roadway width, etc.

As required by the CVC, the recommended speed limit is determined by rounding to the nearest 5 mph increment from the 85th percentile speed. Based on physical and environmental factors, the traffic engineer has the ability to reduce the recommended speed by 5 mph if the justification for doing so is documented in the Survey.

CVC also states that Surveys are valid for seven years. Therefore, these Surveys will expire on April 1, 2029. Surveys may also be extended by a traffic engineer for seven 7) years depending upon criteria such as significant changes in roadway alignment, traffic volumes, and surrounding land use.

As a function of the Surveys conducted by CTG, proposed speed limits for segments of City streets bounded by associated nodes are summarized in Table 1, below. The complete Surveys for each street are provided as Attachment B.

CITY MANAGER' S REPORT PAGE 3
MARCH 13, 2023 CITY COUNCIL REGULAR MEETING

SEGMENT NAME SEGMENT BEGIN SEGMENT END

DESIGN PROPOSED

SPEED SPEED LIMIT
River Islands Pkwy. SJ River Bridge Somerston Pkwy. 35 45 River Islands Pkwy. Somerston Pkwy. Norbeck St. 40 45
Marina Dr. River Bend Dr. Somerston Pkwy. 25 25
Marina Dr. Somerston Pkwy. Taft Dr. 25 25
Academy Dr. River Bend Dr. Somerston Pkwy. 25 25
Academy Dr. Somerston Pkwy. Broadmoor Wy. 25 30
Lakeside Dr. Stewart Rd. Vega Roundabout 25 35
Lakeside Dr. Vega Roundabout Somerston Pkwy. 25 35
Lakeside Dr. Somerston Pkwy. Dell' Osso Dr. 25 35
Dell' Osso Dr. Mulholland Dr. River Islands Pkwy. 25 35 Dell' Osso Dr. River Islands Pkwy. Lakeside Dr. 35 45
Somerston Pkwy. Riverfront Dr. River Islands Pkwy. NONE 35 Somerston Pkwy. River Islands Pkwy.
800' South of
40 45
Lakeside Dr.

Commercial St. Marina Dr. Academy Dr. 25 30
Signs stating 25 mph when children are present" will be installed for segments within 500 feet of a school with a speed limit greater than 25 mph.

SPEED LIMITS OF THE LATHROP MUNICIPAL CODE:

To establish speed limits, LMC 10. 08. 030 requires a public hearing, introduction and first reading of the proposed ordinance at this City Council meeting, and adoption of the proposed Ordinance at a subsequent Council meeting.

REASON FOR RECOMMENDATION:

The requested Ordinance amendment to Section 10. 08. 030 of the LMC is required by the CVC to establish legally enforceable speed limits.

CITY MANAGER' S REPORT PAGE 4
MARCH 13, 2023 CITY COUNCIL REGULAR MEETING

Sufficient funds have been allocated in the adopted FY 22/ 23 budget to fund the CTG contract and the purchase & installation of the speed limit signage.

ATTACH M ENTS:

A. Proposed Ordinance Amendment of the City Council of the City of Lathrop Amending Section 10. 08. 030 " Speed Limits" of the Lathrop Municipal Code B. Engineering & Traffic Speed Survey by Crane Transportation Group CITY MANAGER' S REPORT PAGE 5
MARCH 13, 2023 CITY COUNCIL REGULAR MEETING

Z. 2 8, 23
Steven Hollenbeak Date
Assistant Engineer
3 2/ ZoZ3
Brad ylor Date
City Engineer
r eR 4 3I21Zo2"' S
Cari James Date
Finance Director
3 • Z • Zo23
Michael King Date
Assistant City Manager
3- .

Salvador Navarrete Date
City Attorney
3 • • Z3
Stephen J. Salvatore Date
City Manager
ORDINANCE NO. 23-

AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF LATHROP AMENDING THE LATHROP MUNICIPAL CODE TITLE 10 VECHICLES AND TRAFFIC, CHAPTER 10. 08 SPEED LIMITS SECTION 10. 08. 030 SPEED LIMITS" WHEREAS, the California Vehicle Code ( CVC) requires that an Engineering and Traffic Survey ( Survey) be conducted to establish a legally enforceable prima facie speed limit for a public roadway; and
WHEREAS, the City of Lathrop has enacted an ordinance to establish the prima facie speed limits on portions of certain streets within the City; and WHEREAS, Crane Transportation Group ( CTG) has conducted Surveys to establish legal speed limits for specific recently constructed streets; and WHEREAS, to update or establish speed limits for the indicated streets, it is necessary to amend Title 10 Vehicles and Traffic, Chapter 10. 08 Speed Limits, Section 10. 08. 030 Speed Limits of the Lathrop Municipal Code; and WHEREAS, proper notice of this public hearing was given to all respects as required by law; and
WHEREAS, the City Council has reviewed all written evidence and oral testimony presented to date.

NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF LATHROP DOES HEREBY ORDAIN AS FOLLOWS:

Section 1.

Section 10. 08. 030, of the Lathrop Municipal Code, is amended to read in full as follows:

It shall be prima facie unlawful to operate any vehicle at speed in excess of that established as follows:

A. The speed limit shall be fifty ( 50) miles per hour on the following street segments:

Street Limits
Golden Valley Parkway Lathrop Road to River Islands Parkway McKinley Avenue Louise Avenue to Yosemite Avenue
B. The speed limit shall be forty-five ( 45) miles per hour on the following street segments:

Street Limits
Dell' Osso Drive River Islands Parkway to Lakeside Drive Golden Valley Parkway River Island Parkway to Towne Centre Drive Golden Valley Parkway Towne Centre Drive to Brookhurst
Boulevard
Harlan Road Roth Road to Slate Street
Harlan Road Slate Street to Lathrop Road
Harlan Road Louise Avenue to D' Arcy Parkway
Harlan Road D' Arcy Parkway to Tesla Drive
Harlan Road Tesla Drive to End of Road
Howland Road Louise Avenue to D' Arcy Parkway
Lathrop Road McKinley Avenue to city limits
Louise Avenue Interstate 5 to Harlan Road
Louise Avenue Harlan Road to Fifth Street
Louise Avenue Fifth Street to McKinley Avenue
Louise Avenue McKinley Avenue to City Limits
Manthey Road Dos Reis Road to City Limits
Manthey Road Towne Centre Drive to Brookhurst
Boulevard
Manthey Road Brookhurst Boulevard to Mossdale County
Park
Manthey Road Stewart Road to Interstate 5 Ramps
McKinley Avenue Yosemite Avenue to City Limits
McKinley Avenue Lathrop Road to Louise Avenue
River Islands Parkway Golden Valley Parkway to McKee Boulevard River Islands Parkwav San Joaquin River Bridge to Somerston Parkwav
River Islands Parkwav Somerston Parkway to Norbeck Street Somerston Parkwav River Islands Parkway to South of Lakeside Drive
Tesla Drive Harlan Road to Christopher Way
Yosemite Avenue SR 120 to D' Arcy Parkway
Yosemite Avenue D' Arcy Parkway to City Limit
C. The speed limit shall be forty ( 40) miles per hour on the following street segments:

Street Limits
D' Arcy Parkway Yosemite Avenue to Christopher Way
D' Arcy Parkway Christopher Way to Harlan Road
Dos Reis Road Manthey Road to East School Zone
Harlan Road Lathrop Road to Louise Avenue
Lathrop Road 5th Street to McKinley Avenue
Manthey Road Lathrop Road to Dos Reis Road
Manthey Road Mossdale County Park to Stewart Road
D. The speed limit shall be thirty-five ( 35) miles per hour on the following street segments:

Street Limits
Barbara Terry Boulevard Spartan Way to McKee Boulevard
Barbara Terry Boulevard McKee Boulevard to Adobe Way
Brookhurst Boulevard Manthey Road to Golden Valley Parkway Brookhurst Boulevard Golden Valley Parkway to McKee Boulevard Brookhurst Boulevard McKee Boulevard to Golden Spike Trail Dell' Osso Drive Mulholland Drive to River Islands Parkwav Christopher Way D' Arcy Parkway to End of Road
Dos Reis Road East School Zone to West School Zone
Dos Reis Road West School Zone to Dos Reis Park
Golden Spike Trail Towne Centre Drive to Brookhurst
Boulevard
Lakeside Drive Stewart Road to Vega Park Roundabout
Lakeside Drive Vega Park Roundabout to Somerston
Parkwav
Lakeside Drive Somerston Parkway to Dell' Osso Drive
Lathrop Road Interstate 5 to Rev Maurice Cotton Drive
Lathrop Road Rev Maurice Cotton Drive to Fifth Street
McKee Boulevard Brookhurst Boulevard to Towne Centre
Drive
McKee Boulevard Towne Centre Drive to Johnson Ferry
McKee Boulevard Johnson Ferry to River Islands Parkway
McKee Boulevard River Islands Parkway to Barbara Terry
Boulevard
Murphy Parkway Tesla Drive to D' Arcy Parkway
Murphy Parkway D' Arcy Parkway to End of Road
River Islands Parkway Interstate 5 to Golden Valley Parkway River Islands Parkway McKee Boulevard to San Joaquin River bridge Roth Road Interstate 5 to East City Limits
Seventh Street J Street to Thomsen Road
Somerston Parkwav Riverfront Drive to River Islands Parkwav E. The speed limit shall be thirty ( 30) miles per hour on the following street segments:

Street Limits
Academy Drive Somerston Parkway to Broadmoor Wav
Commerical Street Marina Drive to Academy Drive
Inland Passage Way Sadler Oak Drive to Open Range Avenue Slate Street Harlan Road to Deerwood Way
Slate Street Deerwood Way to Stonebridge Lane
Opal Street Stonebridge Lane to Deerwood Way
Opal Street Deerwood Way to Slate Street
Sadler Oak Drive Manthey Road to Inland Passage Way
Johnson Ferry Road Colonial Trail to Golden Spike Trail Stonebridge Lane Harlan Road to Slate Street
F. The speed limit shall be twenty-five ( 25) miles per hour on the following street segments:

Street Limits
Academy Drive River Bend Drive to Somerson Parkwav
Cambridge Drive Lathrop Road to Louise Avenue
Fifth Street K Street to O Street
J Street Harlan Road to Fifth Street
Lathrop Road Interstate 5 to Golden Valley Parkway
Marina Drive River Bend Drive to Somerston Parkwav
Marina Drive Somerston Parkway to Taft Drive
O Street Harlan Road to Seventh Street
Spartan Way Golden Valley Parkway to Generations
Center
Spartan Way Generations Center to Lathrop High School
Spartan Way Lathrop High School to Stanford Crossing
Spartan Way Stanford Crossing to Barbara Terry
Boulevard
Stewart Road Manthey Road to South River Bend
Thomsen Road Harlan Road to Grayson Road
Thomsen Road Grayson Road to Halmar Lane
Thomsen Road Halmar Lane to Seventh Street
Towne Centre Drive Golden Valley Parkway to McKee
Boulevard
Towne Centre Drive McKee Boulevard to Village Avenue
G. The following list of two hundred thirty- seven ( 237) roadway segments that meet the requirements defined in section 40802( b) of the CVC for a local street are not subject to the requirement for an Engineering and Traffic Survey. These local / residential streets shall have a recommended prima facie speed limit of 25 mph that can be enforced with radar, exempt from speed trap laws related to Engineering and Traffic Survey requirements:

Admiral Way Brookhurst Boulevard Dry Creek Place
Adobe Way Brookwood Way Eagle Lane
Almond Orchard Way Calcite Avenue Easy Street
American Farms Avenue Cambridge Drive Emerald Bay Court Americana Way Camelback Street Emory Oak Place
Andover Way Camish Place Englewood Way
Apple Grove Avenue Cannella Drive English Country Trail Applewood Way Carleta Place Eton Way
Argillite Avenue Carnaby Road Evergreen Avenue
Aries Place Carnelian Avenue Exeter Court
Arkose Street Cedar Valley Drive Fairview Way
Aspenwood Avenue Cedarbrook Way Ferndale Street
August Drive Chandra Way Ferry Launch Avenue
Autumn Rain Drive Channel Drive Finchwood Drive
Autumnwood Avenue Charmaine Court Flagstone Street
Avon Avenue Christie Falls Way Fleurette Lane
Aztec Land Claim Stake Avenue Flint Avenue
Back Bay Drive Cloudy Bay Forestwood Way
Baywood Way Cobble Creek Way Forty Niner Trail
Bella Place Cold Springs Street Four Corners Court
Bellchase Road Colonial Trail G Street
Berkshire Court Covered Bridge Way Gaar Avenue
Bizzibe Street Craftsman Drive Gail Drive
Blackwood Avenue Crescent Moon Drive Galena Street
Bloom Way Crescent Park Circle Garden Glade Street
Blue Sky Drive Daffodil Hill Street Gardner Place
Boulder Avenue Dalton Court Garmetta Way
Bramblewood Avenue Danbury Place Gold Nugget Trail
Brewer Street Derby Lane Golden Spike Trail
Brookfield Avenue Dolomite Street Goldstone Street
Granite Avenue Maxwell Lane Rail Way
Grapevine Place Meteorite Street Red Barn Place
Grayson Road Milestone Drive Redstone Street
Green Plaza Mill Stone Way Reiger Drive
Greengate Place Millpond Avenue Renaissance Avenue
Gypsum Way Mingo Way Reverend Maurice Cotton Drive
H Street Mossy Point Way River Bend Drive
Halmar Lane N Street Riverboat Drive
Havenwood Avenue Navigator Drive Riverdale Street
Historic Avenue New England Avenue Rocky Harbor Road
Homestead Avenue New Well Avenue Rosebriar Place
Honey Place Noel Lane Rosewood Street
Hornfels Avenue Obsidian Street Ryhiner Lane
I Street Old Glory Way Saguaro Lane
Independence Avenue Old Wharf Place Samoa Lane
Iron Horse Trail Olivine Avenue Sand Bar Way
J Street Onyx Avenue Schumard Oak Road
Janice Place Open Range Avenue Scrub Oak Drive
Jasper Street Ore Claim Trail Sedona Lane
Johnson Ferry Road Orlando Lane Settler Trail
Jonquil Drive Osage Place Shadowberry Place
Julie Lane Parkhaven Street Shady Mill Way
K Street Parkside Drive Shady Shores Drive
Kirkwood Way Pasture Avenue Shadywood Avenue
L Street Patricia Place Sheltered Cove
Landmark Point Patriot Way Shilling Avenue
Late Harvest Place Pecan Hollow Way Showlow Lane
Lazy Ridge Avenue Pennant Avenue Sierra Gold Trail
Leather Oak Road Pheasant Downs Road Siltstone Avenue
Libby Lane Pine Valley Drive Silver Creek Drive
Liberty Point Pinewood Drive Sixth Street
Limestone Avenue Pioneer Avenue South Lagoon Way
Lisa Lane Pipestone Street Southport Street
Loganberry Way Platinum Avenue Spar Street
Long Barn Drive Pony Express Way St. Andrew Street
Lottie Way Poppy Drive Stage Coach Drive
Magnetite Avenue Prairie Dunes Drive Stone Cellar Way
Maharaja Drive Princeville Street Strawberry Glen Street Mariners Drive Quartz Way Sugar Pine Drive
Matador Way Queirolo Road Sunflower Drive
Sunrise Place Trestle Point Water Mills Street
Suzie Q Lane Tulip Tree Way Water Way
Talc Street Tumbleweed Lane Waterman Avenue
Thomsen Road Upstream Drive Wheat Field Street
Tidewater Point Victorian Trail Wild Oak Drive
Toro Lane Village Avenue Williamstowne
Town Square W Nut Tree Court Woodfield Drive
Tracywood Avenue Warfield Road Wynona Way
Travertine Avenue Warren Avenue Zalman Lane
Section 2.

This Ordinance is not intended to and shall not be construed or given effect in a manner that imposes upon the city or any officer or employee thereof a mandatory duty of care toward persons and property within or without the city so as to provide a basis of civil liability for damages, except as otherwise imposed by law.

Section 3. Severalbilitv
If any provisions of this Ordinance or application thereof to any person or circumstances is held invalid, such invalidity shall not effect other provisions or applications of the ordinance which can be given effect without the invalid provision or application, and to this end the provisions of this Ordinance are severable. The City Council hereby declares that it would have adopted this Ordinance irrespective of the validity of any particular portions thereof.

Section 4. Effective Date
This Ordinance shall take legal effect and be in force thirty ( 30) days from and after the date of its passage.

Section 5. Pubilication
Within fifteen ( 15) days after its final passage, the City Clerk shall cause a copy of this Ordinance to be published in full accordance with Section 36933 of the Government Code.

THIS ORDINANCE was introduced at a regular meeting of the City Council of the City of Lathrop on the 13th day of March 2023, and was PASSED AND ADOPTED at a regular meeting of the City Council of the City of Lathrop on the th day of 2023 by the following vote, to wit:

AYES:

NOES:

ABSENT:

ABSTAIN:

Sonny Dhaliwal, Mayor
ATTEST: APPROVED AS TO FORM:

Teresa Vargas, City Clerk Salvador Navarrete, City Attorney

ATTACHMENT

CRANE TRANSPORTA TION GROUP

CITY OF LATHROP

ENGINEERING AND TRAFFIC SPEED SURVEY

ROADWAY SEGMENTS

1. lA E- W River Islands Parkway: Norbeck to Somerston Parkway

2. 1 B E- W River Islands Parkway: Somerston Parkway to San Joaquin River Bridge

3. 2A E- W Marina Drive: Taft Drive to Somerston Parkway

4. 2B E- W Marina Drive: Somerston Parkway to River Bend Drive

5. 3A E- W Academy Drive: Broadmoor Way to Somerston Parkway

6. 3B E- W Academy Drive: Somerston Parkway to River Bend Drive

7. 4A E- W Lakeside Drive: Dell' Osso Drive to Somerston Parkway

8. 4B E- W Lakeside Drive: Somerston Parkway to Michael Vega Park Roundabout

9. 4C E- W Lakeside Drive: Michael Vega Park Roundabout to Stewart Road

10. SA N- S Dell' Osso Drive: Mulholland Drive to River Islands Parkway

11. SB N- S Dell' Osso Drive: River Islands Parkway to Lakeside Drive

12. 6A N- S Somerston Parkway: Riverfront Drive to River Islands Parkway

13. 6B N- S Somerston Parkway: River Islands Parkway to South of Lakeside Drive

14. 7A N- S Commercial Street: Marina Drive to Academy Drive CTG August 16, 2022 Lathrop Engineering& Traffic Speed Survey Roadway Segments Page 1 of 1

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: RIVER ISLANDS PARKWAY Limits: Norbeck - Somerston Parkway Map Location: lA
Direction: Eastbound- Westbound
Number of Lanes= 4( Divided with landscaped median)
Posted Speed Limit= 40
Transit Facilities= None
BICYCLE AND PEDESTRIAN FACILITIES: DESCR/ PT/ ON OF SURROUND/ NG AREA:

Sidewalks- North& South sides South Side: Single- Family- Residential( no fronting units)+ Lake Bike Lanes( Class II striped and signed- North and South sides) North Side: Single& Multi- Family- Residential( no fronting units) PARK/ NG ACCOMMODAT/ ONS: INTERSECT/ ON FACILITIES:

No on- street parking North or South sides Side Street: Stop- sign- controlled at Bosch Avenue, Oberlin Avenue, and Imperial Drive
All- way- stops at Dell' Osso Drive and Somerston Parkway COMMUNITV FACILITIES:

None
ACCIDENT HISTORY( 1018— 2011)
No speed- related accidents
CURRENT SPEED DATA:

EASTBOUND- WESTBOUND
50T" Percentile 41 mph
85th Percentile 46 mph
10 mph Pace 36- 45 mph
Percent in Pace 71%
Percent Below Pace 13%
Percent Above Pace 16%
Percent complying with speed limit: 46%
RECOMMENDED SPEED L/ M/ T: 45 MILES PER HOUR( MPH)
Justification:

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Mark D. Crane, PE Exp. 12/ 31/ 23
Registered Traffic Engineer
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: River Islands Pkwy LOCATION: 2
SURVEY LIMITS: Norbeck to Somerston Pkwy COLLECTOR: Jonathan SURVEY DATE: Thursday, May 12, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 4
SURVEY START TIME: 11: 0O: OOAM
SURVEY END TIME: 12: 35: OOPM
STREET CLASSIFICATION: Arterial
POSTED SPEED: 40 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 36 MPH TO 45 MPH Below Pace In Pace Above Pace
46 MPH 41 MPH 36 MPH

13. 0% 71. 0% 16. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 40 MPH

0. 5% COMPLYING 45. 5% COMPLYING

DIRECTION OF COLLECTION
Entries 200
NB/ EB 100 50. 0%
SB/ WB 100 50. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 40 MPH
Percent of Total Observations
0„ 4 FREQUENCY CUMULATIVE
s3- sa w. NB/ E8# NB/ EB% SB/ WB# SB/ WB° k TOt81% #
51- 2 iYi1 ._
a- 50 '""'
0< 25 1 0. 5% 0 0% 0. 5% 1 0. 5%
a7- as 25- 26 0 0. 0°/ a 1 1% 0. 5% 2 1. 0%
o as- ae 27- 28 3 1. 5% 2 1% 2. 5% 7 3. 5%
43- aa ' 29- 30 0 0. 0% 3 2°/a 1. 5% 10 5. 0% w
ou- az 31- 32 3 1. 5% 2 1% 2. 5°/ a 15 7. 5%
39- ao 33- 34 3 1. 5% 2 1% 2. 5% 20 10. 0%
3- 3s '
35- 36 8 4. 0% 5 3% 6. 5% 33 16. 5%
v 35- 36
n 33- 34 IYiL ' ' .
37- 38 12 6. 0% 13 7% 12. 5% 58 29. 0%
N 31- 32 .'"" . . 39- 40 16 8. 0% 17 9% 16. 5% 91 45. 5% z9- 3o ' 41- 42 18 9. 0% 21 11% 19. 5% 130 65. 0%
v- za '" 43- 44 18 9. 0% 11 6% 14. 5% 159 79. 5%
zs- z5 '""" 45- 46 6 3. 0% 9 5% 7. 5% 174 87.0%
o< 25 ' 47- 48 7 3. 5% 7 4% 7. 0% 188 94. 0%
o.oi z. oi a. o i e. oi s. or io. oi iz.o0 49- 50 3 1. 5% 3 2°/ 3. 0% 194 97.0% Percent of Observations 51- 52 1 0. 5% 3 2% 2. 0% 198 99. 0% 53- 54 1 0. 5% 1 1% 1. 0% 200 100. 0%
sa/ wa i NaiEe r
0 0. 0% 0 100. 0%
0> 54 0% 0. 0% 200

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: RIVER ISLANDS PARKWAY Limits: Somerston Parkway- San Joaquin River Bridge Map Location: 16
Direction: Eastbound- Westbound
Number of Lanes= 2
Posted Speed Limit= 35
Transit Facilities= None
B/ CYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalk- South side only • South Side: Lake and undeveloped eike Lane( Class II striped and signed- South side only) North Side: Athletic fields( parking access and undeveloped) PARK/ NG ACCOMMODATIONS: INTERSECTION FACILITIES:

No on- street parking North or South sides Side Street: Stop- sign- controlled at athletic field access All- way- stop at Somerston Parkway
COMMUNITY FACILITlES:

On North side- Athletic fields( Islanders baseball field and River Islands Riptide football and soccer fields) ACCIDENT HISTORY( 2018—2021J
One speed- related accident
CURRENT SPEED DATA:

EASTBOUND— WESTBOUND
50T" Percentile 37 mph
85th Percentile 43 mph
10 mph Pace 32- 41 mph
Percent in Pace 69%
Percent Below Pace 8%
Percent Above Pace 23%
Percent complying with speed limit: 37%
RECOMMENDED SPEED L/ MIT: 45 M/ LES PER HOUR( MPHJ
Justification:

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Mark D. Crane, PE Exp. 12/ 31/ 23
Registered Traffic Engineer
Crane Transportation Group
August 16, 2022
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: River isiands Pkwy LOCATION: 5
SURVEY LIMITS: Between Somerston Pkwy& San Joaquin River Bridge COLLECTOR: Jonathan SURVEY DATE: Thursday, April 28, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 2
SURVEY START TIME: 2 OO: OOPM
SURVEY END TIME: 2: 45: OOPM
STREET CLASSIFICATION: Arterial
POSTED SPEED: 35 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 32 MPH TO 41 MPH Below Pace In Pace Above Pace
43 MPH 37 MPH 32 MPH
g 0% 69. 0% 23. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 35 MPH

0. 0% COMPLYING 37. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 50 50. 0%
SB/ WB 5p 50. 0%
UNUSUAL CONDITIONS: NONe
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 35 MPH
Percent of Total Observations
0, 49 FREQUENCY CUMULATIVE
ns- a9 iiLr N8/ EB# NB/ EB% SB/ WB# SBIWB% TOt21% #
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38- 39 24- 25 0 0. 0% 0 0% 0. 0% 0 0. 0°/ a
ma3e- 3 ' 26- 27 0 0. 0% 1 1% 1. 0% 1 1. 0%
3a- 3s , 28- 29 0 0. 0% 4 4% 4. 0% 5 5. 0%
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32- 33 9 9. 0% 10 10% 19. 0% 27 27. 0%
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Zq- zg 36- 37 8 8. 0% 5 5% 13. 0% 50 50. 0%
zz- z3 - 38- 39 10 10. 0% 8 8% 18. 0% 68 68. 0%
zo- z1 ' 40- 41 3 3. 0% 6 6% 9. 0% 77 77. 0%
o< m 42- 43 8 8. 0% 2 2% 10. 0% 87 87. 0%
o.a% z. oo a. oi e. o s. o io.oi iz.o 44- 45 7 7. 0% 1 1% 8. 0% 95 95. 0% Percent of 06servations 46- 47 1 1. 0% 1 1% 2. 0% 97 97. 0% 48- 49 1 1. 0% 2 2% 3. 0% 100 100. 0%
se/ w°% Na/ es°% 0 0. 0% 0 100. 0%
0> 49 0% 0. 0% 100

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: MARINA DRIVE Limits: Taft Drive to Somerston Parkway Map Location: 2A
Direction: Eastbound- Westbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FACILITIES: DESCR/PTION OFSURROUND/NG AREA:

Sidewalks- North& South sides South Side: Single- Family- Residential( fronting units Westno fronting units East)+ Lake Bike Facilities- Signed bike route North Side: Single- Family- Residential West end and Central mix of fronting and no fronting units)+ Multi- Family- Residential no fronting units) and Lake to the East
PARK/ NG ACCOMMODATIONS: INTERSECT/ ON FACILITlES:

On- street parking- North side only Side Street: Stop- sign- controlled at all minor intersections Roundabouts at Oberlin Avenue and Imperial Drive
all- way-stops at Dell' Osso Drive and Somerston Parkway COMMUNITY FAC/L/ TIES:

None
ACC/ DENT HISTORY( 2018— 2021)
One speed- related accident near Oberlin Avenue intersection CURRENT SPEED DATA:

EASTBOUND- WESTBOUND
50T" Percentile 27 mph
85th Percentile 30 mph
10 mph Pace 22- 31 mph
Percent in Pace 72%
Percent Below Pace 19%
Percent Above Pace 9%
Percent complying with speed limit: 40%
RECOMMENDED SPEED LIMIT: 25 MILES PER HOUR( MPH)
Justification:

Per CVC 627( cJ( 1J( CJ, this segment has Residential Density. ea`
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Marina Dr LOCATION: 7
SURVEY LIMITS: Between Somerston Pkwy& Taft Dr COLLECTOR: Jonathan SURVEY DATE: Thursday, May 5, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 2
SURVEY START TIME: 9: 45: OOAM
SURVEY END TIME: 11: 45: OOAM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 22 MPH TO 31 MPH Below Pace In Pace Above Pace 30 MPH 27 MPH 21 MPH
g, 0% 72. 0% 9. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

40. 0% COMPLYING 40. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 58 58. 0%
SB/ WB 42 42. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Totai Observations
o> se FREQUENCY CUMULATIVE
35- 35 iiSlSrr NB/ EB# NB/ EB% SB/ WB# SB/ WB% TOt21% # 33- 34
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0< 7 0 0. 0% 0 0% 0. 0% 0 0. 0%
z5- 3o 7- 8 0 0. 0% 0 0% 0. 0% 0 0. 0%
o z- 2s 9- 10 0 0. 0% 0 0% 0. 0% 0 0. 0%
zs- zs 11- 12 0 0. 0% 0 0% 0. 0°/ a 0 0. 0%
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13- 1a 21- 22 5 5. 0% 5 5%a 10. 0% 24 24. 0%
11- 1z 23- 24 5 5. 0% 4 4% 9. 0% 33 33. 0%
e- o 25- 26 12 12. 0% 4 4% 16. 0% 49 49. 0%
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29- 30 10 10. 0% 4 4% 14. 0% 85 85. 0%
ao^.a z. o s a. oi s. oi s.or io.oi iz. ou ia.o^ o 31- 32 5 5. 0% 5 5% 10. 0% 95 95. 0% Percent of 06servations 33- 34 3 3. 0% 0 0% 3. 0% 98 98. 0% 35- 36 1 1. 0% 1 1% 2. 0% 100 100. 0%
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CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: MARiNA DRIVE Limits: Somerston Parkway- River Bend Drive Map Location: 2B
Direction: Eastbound- Westbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit facilities= None
BICYCLE AND PEDESTRIAN FACILITIES: DESCR/PTION OF SURROUND/NG AREA:

Sidewalks- North& South sides South Side: Steam Academy campus and undeveloped West of Commercial Street+ Single- Family- Residential( no fronting units) between Commercial and River Bend Drive
Bike Facilities- Signed bike route North Side: River Islands Technology Academy campus undeveloped East end
PARK/ NG ACCOMMODATIONS: INTERSECTION FACILITIES:

No on- street parking North or South sides Stop- sign- controlled side street and parking lot driveway connections
All- way- stops at Somerston Parkway and Commercial Street Roundabout at River Bend Drive
COMMUNITY FACILITIES:

River Islands Technology Academy campus- North side
Steam Academy campus- South side
ACCIDENT HISTORY( 2018— 1021)
No speed- related accidents
CURRENT SPEED DATA:

EASTBOUND- WESTBOUND
50T" Percentile 23 mph
85th Percentile 27 mph
10 mph Pace 18- 27 mph
Percentin Pace 79%
Percent Below Pace 7%
Percent Above Pace 14%
Percent complying with speed limit: 71%
RECOMMENDED SPEED LIMIT: 25 MILES PER HOUR( MPHJ
Justification:
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Marina Dr LOCATION: 8
SURVEY LIMITS: Between Somerston Pkwy 8 River Bend Dr, COLLECTOR: Jonathan SURVEY DATE: Thursday, April 28, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 2
SURVEY START TIME: 3: 0O: OOPM
SURVEY END TIME: 4: 30: OOPM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 18 MPH TO 27 MPH Below Pace In Pace Above Pace
27 MPH 23 MPH 19 MPH 7 0% 79.0% 14. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

71. 0% COMPLYING 71. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 54 54. 0%
SB/ WB 4g 46. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
0> 3 FREQUENCY CUMULATIVE
ss- se NB/ EB# NB/ EB% SB/ WB# SB/ WB% TOtal% #
33- 34
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29- 30 '^ 8 QD% 0.° a 0. 0%
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zs- z5 11- 12 0 0. 0% 0 0% 0. 0% 0 0. 0% v
Z3- Z4 `° 13- 14 1 1. 0% 2 2% 3. 0% 3 3. 0%
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19- 20 2 2. 0% 11 11% 13. 0% 23 23. 0%
13- la ""`' 21- 22 16 16. 0% 6 6%a 22. 0% 45 45. 0%
17- z I 23- 24 9 9. 0% 8 8% 17. 0% 62 62. 0%
e- 0 25- 26 14 14. 0% 7 7% 21. 0% 83 83. 0%
e '. 27- 28 3 3. 0% 3 3% 6. 0% 89 89. 0%
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29- 30 3 3. 0% 2 2% 5. 0% 94 94. 0%
o. oi z. oi a. m e. oi s.oi io.oi iz. i ia.oi, is. oi is. a?s 31- 32 3 3. 0% 1 1°/ 4. 0% 98 98.0% Percent of Observations 33- 34 1 1. 0% 0 0% 1. 0% 99 99. 0% 35- 36 1 1. 0% 0 0°/ a 1. 0% 100 100. 0°/a
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0> 36 0% 0. 0% 100

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: ACADEMY DRIVE Limits: Broadmoor Way to Somerston Parkway Map Location: 3A
Direction: Eastbound-Westbound
Number of lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FACILITIES: DESCR/PTION OF SURROUND/NG AREA:

Sidewalks- North& South sides South Side: Single- Family- Residential( no fronting units) Bike Facilities- None North Side: Single- Family- Residential( no fronting units) + Crystal Cove Park
PARK/ NG ACCOMMODAT/ ONS: INTERSECTION FACILITIES:

On- street parking- North side only Side street stop- sign- controlled at Melones Drive and Hennessey Way
Traffic circle at Broadmoor Way and all- way- stop at
Somerston Parkway
COMMUNITV FACILITIES:

Crystal Cove Park- North side at Broadmoor Way
ACCIDENT HISTORY( 2018— 2021 J
No speed- related accidents
CURRENT SPEED DATA:

EASTBOUND— WESTBOUND
50T" Percentile 26 mph
85th Percentile 31 mph
10 mph Pace 21- 30 mph
Percent in Pace 67%
Percent Below Pace 16%
Percent Above Pace 17%
Percent complying with speed limit: 46%
RECOMMENDED SPEED L/ MIT: 30 MILES PER HOUR( MPH)
lustification:
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August 16, 2022
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Academy Dr LOCATION: 10
SURVEY LIMITS: Between Somerston Pkwy& Broadmoor Wy COLLECTOR: Jonathan SURVEY DATE: Thursday, May 5, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 2
SURVEY START TIME: 2: 0O: OOPM
SURVEY END TIME: 4: 0O: OOPM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 21 MPH TO 30 MPH Below Pace In Pace Above Pace
31 MPH 26 MPH 20 MPH

16.0% 67. 0% 17. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

46. 0% COMPLYING 46. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 50 50. 0%
SB/ WB 50 50. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Totai Observations
o> a FREQUENCY CUMULATIVE
3s- 39 ++++• NB/ EB# NB/ EB% SB/ WB# SB/ WB° k TOt81% # 36- 37 „'°`" a.... ".
3- 35 0< 10 0 0. 0% 0 0% 0. 0% 0 0. 0%
32- 33 0- 0 0.% 0 0% 0.% 0 0. 0%
0 30- 31 12- 13 0 0. 0% 0 0°/ a 0. 0% 0 0. 0%
Zs- z9 , 14- 15 1 1. 0% 0 0% 1. 0% 1 1. 0%
a z6- Z ' i 16- 17 3 3. 0% 1 1% 4. 0% 5 5. 0%
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20- 21 7 7. 0% 6 6% 13. 0% 25 25. 0%
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ta- s 26- 27 9 9. 0% 7 7% 16. 0% 62 62. 0°/ a
z- 13 ' 28- 29 6 6. 0% 7 7% 13. 0% 75 75. 0%
o j 30- 31 4 4. 0% 7 7% 11. 0% 86 86. 0%
o< 10 I 32- 33 4 4. 0% 5 5% 9. 0% 95 95. 0%
o. oi z. o°r a. oi e. o^i s.oi io. o^ s 34- 35 1 1. 0% 0 0% 1. 0% 96 96. 0% Percent of Observations 36- 37 0 0. 0% 2 2% 2. 0% 98 98. 0% 38- 39 1 1. 0% 1 1% 2. 0% 100 100. 0%
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CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: ACADEMY DRIVE Limits: Somerston Parkway— River Bend Drive Map Location: 36
Direction: Eastbound- Westbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
B/ CYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PT/ ON OF SURROUND/ NG AREA:

Sidewalks- North& South sides South Side: Single- Family- Residential( fronting units) Bike Facilities- None North Side: STEAM Academy campus, undeveloped and Single Family Residential( no fronting units)
PARK/ NG ACCOMMODATIONS: INTERSECTION FAC/LITIES:

On- street parking on South side of street Side street stop- sign- controlled at Spence Avenue& Regatta Way with restrictions near STEAM Academy All- way- stops at Somerston Parkway and Commercial Street+ No parking 7- 9 AM and 1- 4 PM) Roundabout at River Bend Drive and full time on North side of street
COMMUNITY FACILITIES:

STEAM Academy campus on North side
ACCIDENTS( History 2018— 2021 J
No speed- related accidents
CURRENT SPEED DATA:

EASTBOUND- WESTBOUND
50T" Percentile 26 mph
85th Percentile 31 mph
10 mph Pace 22- 31 mph
Percent in Pace 76%
Percent Below Pace 13%
Percent Above Pace 11%
Percent complying with speed limit: 39%
RECOMMENDED SPEED LIMIT: 25 MILES PER HOUR( MPHJ
Justification:

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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Academy Dr LOCATION: 11
SURVEY LIMITS: Between Somerston Pkwy& River Bend Dr. COLLECTOR: Jonathan SURVEY DATE: Thursday, May 5, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: z
SURVEY START TIME: 11: 55: OOAM
SURVEY END TIME: 1: 55: OOPM
STREET CLASSIFICATION: Residentiai
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 22 MPH TO 31 MPH Below Pace In Pace Above Pace
31 MPH 26 MPH 22 MPH

13. 0% 76. 0% 11. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

39. 0% COMPLYING 39. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 55 55. 0%
SB/ WB 45 45. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
o> 3Q FREQUENCY CUMULATIVE
3- 3s NB/ EB# NB/ EB% SB/ WB# SBIWB% TOt81% #
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7- 28 13- 14 0 0. 0% 0 0% 0. 0% 0 0. 0%
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2s- z4 i 17- 18 2 2. 0% 0 0% 2. 0% 3 3. 0%
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23- 24 7 7. 0% 5 5°/ a 12. 0% 28 28. 0%
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2 ' 27- 28 8 8. 0% 6 6% 14. 0% 64 64. 0%
a- 10 29- 30 8 8. 0% 8 8% 16. 0% 80 80. 0%
0< 9 31- 32 7 7. 0% 5 5% 12. 0% 92 92. 0%
o. oi z. oe% a. or s.oi s. oi io.oi iz. o ia.oi 33- 34 3 3. 0% 1 1% 4. 0% 96 96. 0% Percen2 of Ohservations 35- 36 1 1. 0% 1 1% 2. 0% 98 98. 0% 37- 38 0 0. 0% 2 2% 2. 0% 100 100. 0%
sa/ wa i N/ Es° r
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0> 38 0% 0. 0% 100

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: LAKESIDE DRIVE Limits: Dell' Osso Drive- Somerston Parkway Map Location: 4A
Direction: Eastbound- Westbound
Number of Lanes= 4( Divided with landscaped median)
Posted Speed Limit= 25
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FAC/ L/ TIES: DESCR/ PT/ ON OF SURROUND/ NG AREA:

Sidewalks- North and South sides South Side: Single- Family- Residential( no fronting units) Bike Facilities- None North Side: Single- Family- Residential( no fronting units) PARKING ACCOMMODATIONS: INTERSECT/ ON FACILITIES:

No on- street parking North or South sides Side street stop signs control at Silver Springs Way All- way- stops at Dell' Osso Drive, Broadmoor Way
and Somerston Parkway
COMMUNITY FACILITIES:

None
ACCIDENT HISTORY( 2018— 2021)
No speed- related accidents
CURRENT SPEED DATA:

EASTBOUND— WESTBOUND
50T" Percentile 31 mph
85 h Percentile 35 mph
10 mph Pace 25- 34 mph
Percent in Pace 82%
Percent Below Pace 3%
Percent Above Pace 16%
Percent complying with speed limit: 7%
RECOMMENDED SPEED LIMIT: 35 MILES PER HOUR( MPH)
Justification:

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Crane Transportation Group
August 16, 2022
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Lakeside Dr LOCATION: 15
SURVEY LIMITS: Between Del Osso Dr. 8 Somserston Pkwy COLLECTOR: Randy SURVEY DATE: Thursday, June 9, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 4
SURVEY START TIME: 12: 35: 00 PM
SURVEY END TIME: 3: 20: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 25 MPH TO 34 MPH Below Pace In Pace Above Pace
35 MPH 31 MPH 27 MPH

3. 0% 81. 5% 15. 5%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

7. 0% COMPLYING 7. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 200
NB/ EB 100 50. 0%
SB/ WB 100 50. 0°/ a
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
c> az FREQUENCY CUMULATIVE
4t- nz NB/ EB# NB/ EB% SB/ WB# SB/ WB% TOt81% # a
39- 40 lii7iY"
37- 3s ^""'"
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31- 3z 1* 17- 18 0 0. 0% 0 0°/ a 0. 0°/ a 0 0. 0%
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21- 22 0 0. 0% 0 0% 0. 0% 0 0. 0%
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t3- za 33- 34 21 10. 5% 17 9% 19. 0% 169 84. 5%
o` 13 35- 36 9 4. 5% 6 3% 7. 5% 184 92. 0%
o- oi z. oi a. o e. o s.oi io.o a iz. or ia.oi ie. o0 37- 38 2 1. 0% 6 3% 4. 0% 192 96. 0% Percent of 06servations 39- 40 3 1. 5% 4 2% 3. 5% 199 99. 5% 41- 42 1 0. 5% 0 0% 0. 5% 200 100. 0%
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0> 42 0% 0. 0% 200

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: LAKESIDE DRIVE Limits: Somerston Parkway- Michael Vega Park Roundabout Map Location: 46
Direction: Eastbound- Westbound
Number of Lanes= 2( Divided with landscaped median)
Posted Speed Limit= 25
Transit Facilities= None
BICVCLE AND PEDESTR/ AN FACILITIES: DESCRIPTION OF SURROUND/ NG AREA:

Sidewalks- North& South sides South Side: Single- Family- Residential( no fronting units) Bike Facilities- None North Side: Single- Family- Residential( no fronting units) PARK/ NG ACCOMMODAT/ ONS: INTERSECTION FACILITIES:

No on- street parking North or South sides No minor side street intersections All- way- stop at Somerston Parkway with Roundabouts
at Commercial Street and Michael Vega Park
COMMUN/ TY FACILITIES:

None
ACCIDENT HISTORY( 2018—1021 J
One speed- related accident at roundabout
CURRENT SPEED DATA:

EASTBOUND- WESTBOUND
50T" Percentile 30 mph
85 h
Percentile 34 mph
10 mph Pace 25- 34 mph
Percent in Pace 87/
Percent Below Pace 3%
Percent Above Pace 10%
Percent complying with speed limit: 9%
RECOMMENDED SPEED L/ MIT: 35 MILES PER HOUR( MPH)
lustification:
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Crane Transportation Group
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Lakeside Dr LOCATION: 16
SURVEY LIMITS: Between Somerston Pkwy& Michael Vega R-A COLLECTOR: Randy SURVEY DATE: Friday, June 10, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 2
SURVEY START TIME: 10: 20: 00 AM
SURVEY END TIME: 12: 50: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 25 MPH TO 34 MPH Below Pace In Pace Above Pace
34 MPH 30 MPH 27 MPH 3. 0% 87. 0% 10. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

8. 5% COMPLYING 8. 5% COMPLYING

DIRECTION OF COLLECTION
Entries 200
NB/ EB 100 50. 0%
SB/ WB 100 50. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
0, 44 FREQUENCY CUMULATIVE
a3- aa NB/ EB# NB/ EB% SB/ WB# SB/ WB° k TOt81% # a
41- 42
39- 40 . ""..'. . .
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33- 34 i 19- 20 0 0. 0% 0 0% 0. 0% 0 0. 0%
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zs- ze
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15- zo
31- 32 21 10. 5% 22 11% 21. 5% 143 71. 5%
17- 78 i 33- 34 21 10. 5% 16 8% 18. 5% 180 90. 0%
1s- 16 35- 36 9 4. 5% 1 1% 5. 0% 190 95. 0%
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37- 38 2 1. 0°/ a 4 2% 3. 0% 196 98. 0%
o.oi, z. oi a.oi s. or s.oi io.oi zz. oi ia.oi 39- 40 0 0. 0% 3 2% 1. 5% 199 99. 5% Percent of Ohservations 41- 42 0 0. 0% 0 0°/ a 0. 0% 199 99. 5% 43- 44 1 0. 5% 0 0% 0. 5% 200 100. 0%
se wa/ Ne/ es i
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0> 44 0% 0. 0% 200

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: LAKESIDE DRIVE Limits: Michael Vega Park Roundabout- Stewart Road Map Location: 4C
Direction: Eastbound- Westbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalks- North& South sides South Side: Michael Vega Park+ Lakefront Bike Facilities- Signed bike route North Side: Single Family residential( no fronting units) PARKING ACCOMMODATIONS: INTERSECTION FACILITlES:

No on- street parking North or South sides Side Street: Stop- sign- controlled at Parkside Drive, Patriot Way, Water Way and Upstream Drive
Roundabouts at Michael Vega Park and Stewart Road
COMMUN/TY FACILlTIES:

Lake and Michael Vega Park on south side of street
ACCIDENT HISTORY( 2018— 2021)
Five unsafe speed- related accidents, but only two by drivers without impairment.

CURRENT SPEED DATA:

EASTBOUND— WESTBOUND
50T" Percentile 28 mph
85th Percentile 34 mph
10 mph Pace 24- 33 mph
Percent in Pace 79%
Percent Below Pace 5%
Percent Above Pace 16%
Percent complying with speed limit: 21%
RECOMMENDED SPEED LIMIT: 35 MILES PER HOUR( MPH)
Justification:
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Mark D. Crane, PE Exp. 12/ 31/ 23
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Crane Transportation Group
August 16, 2022
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Lakeside Dr LOCATION: 17
SURVEY LIMITS: Between Michaei Vega R- A& Stewart Rd COLLECTOR: Randy SURVEY DATE: Wednesday, May 25. 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 2 i
SURVEY START TIME: 3: 20: 00 PM
SURVEY END TIME: 4: 35: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: EB WB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 24 MPH TO 33 MPH Below Pace in Pace Above Pace
34 MPH 28 MPH 25 MPH

5. 0% 79. 0% 16. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

21. 0% COMPLYING 21. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 58 58. 0%
SB/ WB 42 42. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
a FREQUENCY CUMULATIVE
as- aa NB/ EB# NB/ EB% SB/ WB# SB/ WB% Total% #
az- az
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0< 15 0 0. 0% 0 0% 0. 0% 0 0. 0°/ a
3- 3e ',°" 15- 16 0 0. 0% 0 0% 0. 0% 0 0. 0%
0 35- 35 17- 18 0 0. 0% 0 0% 0. 0% 0 0. 0%
33- 34 ' 19- 20 0 0. 0% 0 0% 0. 0% 0 0. 0%
va31 32 "°` 21- 22 2 2. 0% 1 1% 3. 0% 3 3. 0%
z9- 30 °"`"" Y 23- 24 4 4. 0% 2 2% 6. 0% 9 9. 0%
z- zs
25- 26 12 12. 0°/ 10 10% 22. 0% 31 31. 0%
o zs- ze
27- 28 10 10. 0% 10 10% 20. 0% 51 51. 0%
23- 24 -
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29- 30 12 12. 0% 5 5% 17. 0% 68 68. 0%
z- zo
31- 32 8 8. 0% 5 5% 13. 0% 81 81. 0°/ a
1- la 33- 34 2 2. 0% 3 3% 5. 0% 86 86. 0%
1- 16 I 35- 36 2 2. 0% 2 2% 4. 0% 90 90. 0%
o< s 37- 38 4 4. 0% 1 1% 5. 0% 95 95. 0%
o. oi z- oi a. o^i e. oi s_oi io.oi iz. oa% 1a. oM 39- 40 0 0. 0% 1 1% 1. 0% 96 96. 0% Percent of 06servations 41- 42 2 2. 0% 1 1% 3. 0% 99 99. 0% 43- 44 0 0. 0% 1 1% 1. 0% 100 100. 0%
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0> 44 0% 0. 0°/ a 100

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: DELL' 0550 DRIVE Limits: Mulholland Drive- River Islands Parkway Map Location: 5A
Direction: Northbound-Southbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalk- West side only( Mulholland Drive- Garden Farms Avenue) • East Side: Latitude Park and lake North of Garden Farms Avenue both East& West sides Garden Farms Avenue- River Islands Parkway and Single- Family- Residential( no fronting units) between Garden Farms Avenue and River Islands Parkway
Bike facilities- Signed bike route West Side: Single- Family- Residential( no fronting units) and lake park North of Garden Farms Avenue to River Islands Parkway PARKING ACCOMMODAT/ ONS: INTERSECT/ ON FACILITIES:

No on- street parking East or West sides No intersections Traffic circle at Mulholland Drive and all- way- stop
at Garden Farms Avenue
COMMUN/TY FACILITIES:

Latitude Park on East side of street
ACCIDENT HISTORV( 2018— 2021 J
No speed- related accidents
CURRENT SPEED DATA:

NORTHBOUND— SOUTHBOUND
50T" Percentile 29 mph
85th Percentile 33 mph
10 mph Pace 25- 34 mph
Percent in Pace 89%
Percent Below Pace 6%
Percent Above Pace 5%
Percent complying with speed limit: 11%
RECOMMENDED SPEED LIMIT: 35 MILES PER HOUR( MPH)
lustification:
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Registered Traffic Engineer
Crane Transportation Group
August 16, 2022
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Del' Osso Dr LOCATION: 3
SURVEY LIMITS: Between Mulhoiland Dr& River Isiands Pkwy. COLLECTOR: Randy SURVEY DATE: Monday, June 6, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 2
SURVEY START TIME: 9: 00: 00 AM
SURVEY END TIME: 12: 00: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: NB SB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 25 MPH TO 34 MPH Below Pace In Pace Above Pace
33 MPH 29 MPH 26 MPH 6 5% 88. 7% 4. 8%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

11. 3% COMPLYING 11. 3% COMPLYING

DIRECTION OF COLLECTION
Entries 62
NB/ EB 26 41. 9%
SB/ WB 3g 58. 1%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
a> s FREQUENCY CUMULATIVE
3 3 I NB/ EB# NB/ EB% SB/ WB# SB/ WB% TOtBI% #
34- 35 `"" a . . .
32- 33 .
0< 8 0 0. 0% 0 0% 0. 0% 0 0. 0%
30- 31 " "" ` ' i 8- 9 0 0. 0% 0 0% 0. 0% 0 0. 0%
a zs- z5 10- 11 0 0. 0% 0 0% 0. 0% 0 0. 0%
z6- z7 ' 12- 13 0 0. 0% 0 0% 0. 0% 0 0. 0%
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z- z3
16- 17 0 0. 0% 0 0% 0. 0% 0 0. 0%
zo- z1
18- 19 0 0. 0% 0 0% 0. 0% 0 0. 0% 18- 19
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1a- 15
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z- 13 24- 25 2 3. 2% 4 6% 9. 7% 7 11. 3%
u- u 26- 27 8 12. 9% 2 3% 16. 1% 17 27. 4%
s 9 28- 29 8 12. 9% 6 10% 22. 6% 31 50. 0%
o< s
30- 31 2 3. 2% 10 16% 19. 4°/ a 43 69.4%
o. oi z. o a. o r s. mi a.oi io. o iz. oe% ia.oi ie. or is.oi 32- 33 4 6. 5% 8 13% 19. 4% 55 88. 7% Percent of Observations 34- 35 1 1. 6% 3 5% 6. 5% 59 95.2% 36- 37 0 0. 0% 3 5% 4. 8% 62 100. 0%
ssiwe o NB/ EB i
0 0. 0% 0 100. 0%
0> 37 0% 0. 0% 62

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: DELL' OSSO DRIVE Limits: River Islands Parkway - Lakeside Drive Map Location: 5B
Direction: Northbound- Southbound
Number of Lanes= 2
Posted Speed Limit= 35
Transit Facilities= None
BICVCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalk- East and West sides from RIP to Marina Drive; East Side: Single- Family- Residential( no fronting units) South of Marina Drive. None on East or West sides West Side: Single- Family- Residential from RIP to about Bike facilities- Signed bike route halfway between Marina Drive and Lakeside Orive no fronting units)
PARKING ACCOMMODATIONS: INTERSECTION FACILITIES:

No on- street parking on East or West sides of street No minor street intersections All- way- stops at River Islands Parkway, Marina Drive and Lakeside Drive
COMMUNITY FACILITIES:

None
ACCIDENT H/ STORV( 2018— 2021)
No speed- related accidents
CURRENT SPEED DATA:

NORTHBOUND- SOUTHBOUND
50T" Percentile 40 mph
85th Percentile 43 mph
10 mph Pace 35- 44 mph
Percent in Pace 81%
Percent Below Pace 9%
Percent Above Pace 10%
Percent complying with speed limit: 11%
RECOMMENDED SPEED LIMIT: 45 MILES PER HOUR( MPH)
Justification:
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ROADWAY SURVEYED: Del' Osso Dr LOCATION: 14
SURVEY LIMITS: Between River Islands Pkwy.& Lakeside Dr COLIECTOR: Randy SURVEY DATE: Thursday, June 9, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 2
SURVEY START TIME: 10: 05: 00 AM
SURVEY END TIME: 12: 30: 00 PM
STREET CLASSIFICATION: Arterial
POSTED SPEED: 35 MPH
DIRECTION OF TRAFFIC: NB SB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 35 MPH TO 44 MPH Below Pace In Pace Above Pace
43 MPH 40 MPH 36 MPH g 0°/ a 81. 0% 10. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 35 MPH

0. 0% COMPLYING 11. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 45 45. 0%
SB/ WB 55 55. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 35 MPH
Percent of Totai Observations
0>; 3 FREQUENCY CUMULATIVE
sz- ss NB/ EB# NB/ EB% SB/ WB# SB/ WB% Total% #
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7a- zs 44- 45 1 1. 0% 1 1% 2. 0% 91 91. 0%
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0 0 z. o^., n.or e. o a. o o io. o izo ia. oi is.oi 48- 49 0 0. 0°/ 4 4% 4. 0% 99 99. 0% Percent of Observations 50- 51 0 0. 0% 0 0% 0. 0% 99 99. 0% 52- 53 0 0. 0% 1 1% 1. 0% 100 100. 0%
ss/ we i Na/ Es, 0 0. 0% 0 100. 0%
0> 53 0% 0. 0% 100

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: SOMERSTON PARKWAY Limits: Riverfront Drive- River Islands Parkway Map Location: 6A
Direction: Northbound-Southbound
Number of Lanes= 2( Divided with landscaped median)
Posted Speed Limit= No posted limit
Transit Facilities= None
BICYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalk- East and West sides East Side: Small office and Undeveloped Bike facilities- None West Side: Single- Family- Residential( no fronting units) and adjacent street( North of RIP)
PARK/ NG ACCOMMODAT/ ONS: INTERSECT/ ON FACILITIES:

No on- street parking on East or West sides Driveway( RT in and out) connecting to NB lane Roundabout at Garden Farms Avenue and all-way- stops at Riverfront Drive and RIP
COMMUNITY FACILITlES:

None
ACCIDENT HISTORY( 1018— 2011)
No midblock- speed- related accidents.

CURRENT SPEED DATA:

NORTHBOUND— SOUTHBOUND
50T" Percentile 30 mph
85 h Percentile 33 mph
10 mph Pace 25- 34 mph
Percent in Pace 90%
Percent Below Pace 4%
Percent Above Pace 6%
Percent complying with speed limit: 10%
RECOMMENDED SPEED LIMIT: 35 MILES PER HOUR( MPH)
Justification:
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ROADWAY SURVEYED: Somserton Pkwy LOCATION: 4
SURVEY LIMITS: Between Riverfront Dr. 8 River Islands Pkwy COLLECTOR: Randy SURVEY DATE: Monday, June 6, 2022 WEATHER: Sunny
ROAD CONDITION: Fair OF LANES: 2
SURVEY START TIME: 12: 20: 00 PM
SURVEY END TIME: 3: 00: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: NB SB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 25 MPH TO 34 MPH Below Pace In Pace Above Pace
33 MPH 30 MPH 26 MPH 4. 0% 89. 5% 6. 5%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

9. 5% COMPLYING 9. 5% COMPLYING

DIRECTION OF COLLECTION
Entries 200
NB/ EB 100 50. 0%
SB B 100 50. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
c> as FREQUENCY CUMULATIVE
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5- io ', 29- 30 26 13. 0% 19 10% 22. 5% 114 57. 0%
0< 9 31- 32 20 10. 0% 23 12% 21. 5% 157 78. 5%
o.oi, z_ or a.oi s. oi s. oi io.oi izo i ia.oi 33- 34 15 7. 5% 15 8% 15. 0% 187 93. 5% Percent of 06servations 35- 36 1 0. 5% 6 3% 3. 5°/ a 194 97. 0°/ a 37- 38 1 0. 5% 5 3% 3. 0% 200 100. 0%
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CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: SOMERSTON PARKWAY Limits: River islands Parkway- South of Lakeside Drive Map Location: 6B
Direction: Northbound- Southbound
Number of Lanes= 4( Divided with landscaped median)
Posted Speed Limit= 40
Transit Facilities= None
B/ CYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalks- East and West sides East Side: Undeveloped RIP to Academy Drive and Single- Family- Residential( no fronting units) South of Academy Drive
Bike facilities- None West Side: Single- Family- Residential( no fronting units) except lake from RIP to marina
PARKING ACCOMMODAT/ ONS: INTERSECTION FACILITIES:

No on- street parking on East or West sides Mariners Drive side street stop- sign- controlled All-way- stops at RIP, Marina Drive, Academy Drive and
lakeside Drive
COMMUNITY FACILITIES:

None
ACCIDENT HISTORY( 2018— 2021)
No speed- related accidents
CURRENT SPEED DATA:

NORTHBOUND— SOUTHBOUND
50T" Percentile 43 mph
85 h Percentile 47 mph
10 mph Pace 39- 48 mph
Percent in Pace 84%
Percent Below Pace 7%
Percent Above Pace 9%
Percent complying with speed limit: 23%
RECOMMENDED SPEED LIMIT: 45 MILES PER HOUR( MPH)
Justification:

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ROADWAY SURVEYED: Somerston Pkwy LOCATION: 9
SURVEY LIMITS: Between River islands Pkwy.& End of Lakeside Dr. COLLECTOR: Randy SURVEY DATE: Monday, June 6, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 4
SURVEY START TIME: 3: 10: 00 PM
SURVEY END TIME: 4: 30: 00 PM
STREET CLASSIFICATION: Residential
POSTED SPEED: 40 MPH
DIRECTION OF TRAFFIC: NB SB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 39 MPH TO 48 MPH Below Pace In Pace Above Pace
47 MPH 43 MPH 40 MPH 7 0% 84. 0% 9. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 40 MPH

0. 0% COMPLYING 23. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 200
NB/ EB 100 50. 0%
SB/ WB 100 50. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 40 MPH
Percent of Total Observations
o> sa FREQUENCY CUMULATIVE
s?- s3 NB/ EB# NB/ EB% SB/ WB# SB/ WB% Total% #
50- 51 `°-
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qb- a ' 24- 25 0 0. 0% 0 0% 0. 0% 0 0. 0%
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wa40- 4 30- 31 0 0. 0% 0 0% 0. 0% 1 0. 5%
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3o- 3i 38- 39 10 5. 0% 9 5% 9. 5% 27 13. 5%
s- zs 40- 41 27 13. 5% 19 10% 23. 0% 73 36. 5%
ze- z 42- 43 12 6. 0% 19 10% 15. 5% a 104 52. 0%a
za- zs ' 44- 45 20 10. 0% 18 9% 19. 0% 142 71. 0%
o< za 46- 47 16 8. 0% 15 8% 15. 5% 173 86. 5%
o. or, zo°.a a. o^i e. o a. o^r io.oi iz.or ia.oi ie. o 48- 49 6 3. 0% 10 5% 8. 0°/ 189 94. 5% Percent of 06servations 50- 51 4 2. 0°/ a 3 2% 3. 5% 196 98. 0% 52- 53 3 1. 5% 1 1% 2. 0% 200 100. 0%
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0> 53 0% 0. 0% 200

CITY OF LATHROP ENGINEERING & TRAFFIC SPEED SURVEY
Street Name: COMMERCIAL STREET Limits: Marina Drive- Academy Drive Map Location: 7A
Direction: Northbound-Southbound
Number of Lanes= 2
Posted Speed Limit= 25
Transit Facilities= None
B/ CYCLE AND PEDESTR/ AN FACILITIES: DESCR/ PTION OF SURROUND/ NG AREA:

Sidewalks- East and West sides East Side: Single- Family- Residential( no fronting units) Bike facilities- None West Side: Steam Academy
PARKING ACCOMMODATIONS: INTERSECTION fACILITlES:

No on- street parking on East or West sides No public intersections( Steam Academy driveways) All- way- stops at Marina Drive and Academy Drive
COMMUNITY FACILITIES:

Steam Academy on west side of street
ACC/ DENT HISTORY( 2018— 2021)
No speed- related accidents
CURRENT SPEED DATA:

NORTHBOUND— SOUTHBOUND
50T" Percentile 26 mph
85 h
Percentile 30 mph
10 mph Pace 22- 31 mph
Percent in Pace 91%
Percent Below Pace 6%
Percent Above Pace 3%
Percent complying with speed limit: 44%
RECOMMENDED SPEED LIM/ T: 30 MILES PER HOUR( MPHJ
Justification:
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IDAX RADAR SAMPLE SPEED SURVEY
ROADWAY SURVEYED: Commerciai St LOCATION: 12
SURVEY LIMITS: Marina Dr& Academy Dr COLLECTOR: Randy
SURVEY DATE: Thursday, May 26, 2022 WEATHER: Sunny
ROAD CONDITION: New OF LANES: 2
SURVEY START TIME: 12: 50: 00 PM
SURVEY END TIME: 3: 10: 00 PM
STREET CLASSIFICATION: Arterial
POSTED SPEED: 25 MPH
DIRECTION OF TRAFFIC: NB SB
CRITICAL SPEED 50TH 15TH PACE SPEED
85TH PERCENTILE) PERCENTILE PERCENTILE 22 MPH TO 31 MPH Below Pace In Pace Above Pace
30 MPH 26 MPH 23 MPH 6. 0% 91. 0% 3. 0%

PRIMA FACIE SPEED LIMIT EXISTING SPEED LIMIT
25 MPH 25 MPH

44. 0% COMPLYING 44. 0% COMPLYING

DIRECTION OF COLLECTION
Entries 100
NB/ EB 64 64. 0%
SB/ 1NB 36 36. 0%
UNUSUAL CONDITIONS: NONE
RECOMMENDED SPEED LIMIT: TBD MPH
SPEED ZONE LIMITS: 25 MPH
Percent of Total Observations
o> aa ' FREQUENCY CUMULATIVE
3z- 33 +"`' NB/ EB# NB/ EB% SB/ WB# SB/ WB% TOt81% #
30- 31 '
28- 29
0< 4 0 0. 0°/ a 0 0% 0. 0% 0 0. 0%
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0 2a- zs 6- 7 0 0. 0% 0 0°/a 0. 0% 0 0. 0%
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zo- z1 ` 10- 11 0 0. 0% 0 0% 0. 0% 0 0. 0%
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16- 1
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14- 15
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10- 11 i
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g_ g , , 20- 21 2 2. 0% 4 4% 6. 0% 6 6. 0%
6 ' ' 22- 23 11 11. 0% 4 4°/ a 15. 0% 21 21. 0%
4- s I 24- 25 14 14. 0°/ a 9 9% 23. 0% 44 44. 0%
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o_or z.oi a.ov e. o^i a. oi io.oi izoi ia. o°a ie. or za. or 28- 29 11 11. 0% 5 5% 16. 0% 82 82. 0% Percent of Observations 30- 31 9 9. 0°/ a 6 6% 15. 0% 97 97. 0% 32- 33 1 1. 0% 2 2% 3. 0% 100 100. 0%
SB/ W8"/ o NB/ EB% 0 0. 0% 0 100. 0%
0> 33 0% 0. 0% 100

Lathrop City CouncilMarch 13, 2023

Lathrop City Council
March 13, 2023