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Attachment 2 - Sconberg Parkway and Monte Bella Boulevard Stop Warrant Analysis

Salinas City Council
January 9, 2024

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Attachment 2 - Sconberg Parkway and Monte Bella Boulevard Stop Warrant Analysis
Meeting
January 9, 2024
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Salinas City Council
Original file
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STOP Sign Applications(Two-Way STOP & Multi-Way STOP) Analysis Major Street:

Minor Street:

Study Dates:

A. Traffic Volume
vph
B. Restricted View
Yes X No
C. Crash History
Crash(es)
Crash(es)
A. Traffic Volume
Yes X No
B. Crash History
Crash(es)
C. Minimum Volumes
C.1
C.2
C.3
85-th % Speed: MPH
85-th % Speed: MPH
Veh Peds Bikes Total Veh Peds Bikes Total Veh Peds Bikes Total Veh Peds Bikes Total 147 147 204 204 236 236 0 0
173 173 142 142 158 158 0 0
265 265 102 102 111 111 0 0
373 373 122 122 127 127 0 0
388 388 88 88 87 87 0 0
444 444 86 86 100 100 0 0
250 250 72 72 83 83 0 0
190 190 64 64 76 76 0 0
7017
50 Satisfied
No
No
No
Interim Multi-Way STOP?
Eastbound
Monte Bella Boulevard
Westbound
None
0 The combined vehicular, pedestrian, and bicycle volume entering the intersection from the minor street approaches (total of both approaches) averages at least 200 units per hours for the same 8 hours, with an average delay to minor-street vehicular traffic of at least 30 seconds per vehicle during the highest hour; but If the 85th-percentile approach speed of the major-street traffic exceeds 40 mph, the minimum vehicular volumes warrants are 70 percent of the values provided in Items 1 and 2. 14:00-15:00
Northbound
Sconberg Parkway
Southbound
Sconberg Parkway
No Parking on Major Street
0 Sconberg Parkway
Monte Bella Boulevard
40 16:00-17:00
17:00-18:00
18:00-19:00
19:00-20:00
8/22/2023-8/24/2023
Two-Way STOP Installation Criteria based on Guidance from California MUTCD 2014 Edition - Rev 7 (Section 2B.06 02) Multi-Way STOP Installation Criteria based on Guidance from California MUTCD 2014 Edition - Rev 7 (Section 2B.07 04) The vehicular traffic volumes on the through street or highway exceed 6,000 vehicles per day(vph). 7:00-8:00
Hours
8:00-9:00
0 Restricted View Exist
Where traffic control signals are justified, the multi-way stop is an interim measure that can be installed quickly to control traffic while arrangements are being made for the installation of the traffic control signal.

Has a traffic signal warrant study been conducted for this intersection that recommends installation of a traffic control signal? If no, Interim Multi-Way Stop not recommended Five or more reported crashes in a 12-month period that are susceptible to correction by a multi-way stop installation. Such crashes include right-turn and left-turn collisions as well as right-angle collisions.

The vehicular volume entering the intersection from the major street approaches (total of both approaches) averages at least 300 vehicles per hour for any 8 hours of an average day; and A restricted view exists that requires road users to stop in order to adequately observe conflicting traffic on the through street or highway; and/or Crash records indicate that three or more crashes that are susceptible to correction by the installation of a STOP sign have been reported within a 12-month period, or that five or more such crashes have been reported within a 2-year period. (Such crashes include right-angle collisions involving road users on the minor-street approach failing to yield the right-of-way to traffic on the through street or Reason:

Sconberg Parkway N/O Monte Bella Boulevard
Sconberg Parkway S/O Monte Bella Boulevard
15:00-16:00
D. 80% Minimum Values
B. Yes X No
C.1 X Yes No
C.2 Yes X No
A.

Yes X No
B.

X Yes No
C.

Yes X No
D.

Yes X No
X Yes No
X Yes No
Engineer's Stamp
Multi-Way STOP Analysis - Prepared by
Jaime O. Rodriguez, T.E. - Traffic Patterns
Monte Bella Elementary School
Bardin Elementary School
Other criteria that may be considered in an engineering study include:

Are left-turn collisions occurring?
The need for control left-turn conflicts;
The need to control vehicle/pedestrian conflicts near locations that generate high pedestrian volumes;
Major Arterial
Residential
Are there sight lines issues?
Where no single criterion is satisfied, but where Criteria B, C.1, and C.2 are all satisfied to 80 percent of the minimum values. Criterion C.3 is excluded from this condition.

Crash history satisfied to 80% of the minimum values
Major Street satisfied to 80% of the minimum values
Minor Street satisfied to 80% of the minimum values
Factors to consider in the Engineering Study for Multi-Way STOP Installation (Section 2B.07 05) Locations
Multi-Way Stop Installation recommended at Sconberg Parkway and Monte Bella Boulevard CERTIFICATION:

This Multi-Way STOP Analysis was determined in accordance with the recommendations set forth by the California - Manual on Uniform Traffic Control Devices (MUTCD) - 2014 Edition - Rev 7 and was conducted by a Registed Traffic Engineer within the State of California and Approved by the City of Salinas.

Major Street(Functional Class):

Minor Street(Functional Class):

Would the installation of a Multi-Way STOP improve traffic operational characteristics of the intersection or the major street?
Locations near or adjacent to intersection that generate pedestrians.

Can the installation of the Multi-Way Stop eliminate vehicle/pedestrian conflicts at the intersection?
Locations where a road user, after stopping, cannot see conflicting traffic and is not able to negotiate the intersection unless conflicting cross traffic is also required to stop; and An intersection of two residential neighborhood collector (through) streets of similar design and operating characteristics where multi-way stop control would improve traffic operational characteristics of the intersection

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