HomeMy WebLinkAboutReso 2001-046 RESOLUTION NO. 2001-046
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
CHULA VISTA ADOPTING A REVISED CITY COUNCIL
POLICY NUMBER 478-03, TITLED, "ALL-WAY STOP"
WHEREAS, at its May 2, 2000 meeting, City Council directed staff to revise the all-way
stop policy as a result of the proliferation of stop signs throughout the City, and to arrange for a
joint workshop with the Safety Commission to discuss the proposed revisions; and
WHEREAS, the joint workshop was held on January 18, 2001, during which Council
directed staff to present the proposed changes to the Safety Commission at their next meeting,
and later to report the Safety Commission's recommendation in the form of a resolution for
adoption by City Council at a future Council meeting; and
WHEREAS, at its meeting of February 8, 2001, the Safety Commission accepted staffs
report with one modification and recommended that the proposed changes to existing Policy
Number 478-03, dated July 27, 1999, and adopted by Council Resolution No. 19547, be brought
forward to the City Council for adoption.
NOW, THEREFORE, BE IT RESOLVED the City Council of the City of Chula Vista
does hereby adopt a revised City Council Policy, Number 478-03, "All Way Stop," as set forth in
Exhibit "A," attached hereto and incorporated herein by reference as if set forth in full.
Presented by Approved as to form by
~ ~t~)irector I . Kahcny )
eyA
Resolution 2001-046
Page 2
PASSED, APPROVED, and ADOPTED by the City Council of the City of Chula Vista,
California, this 6th day of March, 2001, by the following vote:
AYES: Councilmembers: Davis, Padilla, Rindone, Salas and Horton
NAYS: Councilmembers: None
ABSENT: Councilmembers: None
Shirley Ho~t6n, Mayor
ATTEST:
Susan Bigelow, City CI~
STATE OF CALIFORNIA )
COUNTY OF SAN DIEGO )
CITY OF CHULA VISTA )
I, Susan Bigelow, City Clerk of Chula Vista, California, do hereby certify that the foregoing
Resolution No. 2001-046 was duly passed, approved, and adopted by the City Council at a
regular meeting of the Chula Vista City Council held on the 6th day of March, 2001.
Executed this 6th day of March, 2001.
Susan Bigelow, City Clerk
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 1 of 9
RACKGROIYND
The Caltrans Traffic Manual and the Manual on Uniform Traffic Control Devices list criteria in determining
the need for an all-way stop. Actual need for an all-way stop is determined by an engineering study, which
examines the special characteristics of the site.
All-way stop signs are restrictive controls since they require all motorists entering the intersection to stop at
all times. When stop signs are installed for speed control and/or there is no apparent traffic reason for the
stop (little or no cross traffic), motorists regard the stop sign as an unnecessary impediment, and often times
do not make a complete stop. When this occurs, the expectations of other drivers and pedestrians are
altered, thereby jeopardizing the safety performance of the intersection. Although speeds will be lower in
the vicinity of the stop, speeds may be higher mid-block as motorists try to make-up for the perceived time
lost at the stop sign. Another negative aspect of unwarranted stop signs is the increase in noise and pollution
as motorists apply their brakes to slow down and accelerate out of the intersection. However, all-way control
intersections generally have a lower accident rate in contrast to the uncontrolled intersections or two-way
stop control intersections, and they provide for safer pedestrian crossing, thereby promoting walkable
communities.
It is impractical to install an all-way stop (or other traffic control device such as a traffic signal) whenever
and wherever a request is made; otherwise during peak periods, extended delays to motorists may result,
thus forcing motorists to seek alternate routes through parallels streets, often a residential area. A Traffic
Engineer's primary goal is to maintain safety and reduce vehicle delay. In some instances, however,
maintaining and enhancing traffic safety will result in increased delays.
PI IR
The purpose of a fully justified, properly installed all-way stop is to effectively assign right-of-way, enhance
pedestrian safety and minimize vehicle delay. Generally, all-way stops are installed where traffic signals are
warranted and/or an accident history has been indicated by reported accidents of a type susceptible to correction
by an all-way stop.
PC}I .ICY RTATEMENT-
It shall be the policy of the City of Chula Vista, through the Department of Public Works/Engineering Division,
to warrant the installation of All-Way Stops in accordance with the following policy statements:
The Califurnia Vehicle Code, Section 21350 thru 21355, give the authority to local agencies to install all-way
stop traffic controls upon streets in their respective jurisdiction.
According to Federal and State traffic control guidelines, all-way stop installations should be reserved for the
control of vehicular traffic conflicts at intersections and should not be used only as devices to control speed.
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 2 of 9
ADOPTED BY: Resolution No. I DATED: I
The City' s policy for the installation of an all-way stop control is based on a point system. Points are assigned
to traffic factors based on the severity of traffic conditions. Factors measured are:
1) Accident records
2) Unusual conditions
3) Pedestrian volume
4) Traffic volume
5) Traffic volume differentials
GENERAL:
A fully justified, properly installed all-way stop can effectively assign right of way, reduce vehicle delay, and
decrease accidents. Ihe posting of an intersection for all-way stop control should be based on factual data.
Warrants to be considered include:
1 ) Accident records
2) Unusual conditions
3) Pedestrian volumes
4) Traffic volume
5) Traffic volume difference
Points are assigned to each of these warrants. The total points possible are 100. The installation of an all-way
stop control is ,justified with a minimum of 45 points, unless:
Case 1:
if CaltransI criteria is met, the point system is not applicable.
Case 2:
If any of the five criteria is met to the extent of 100% an all-way stop control intersection may be warranted
even though the minimum number of points is not accumulated.
Case 3:
If the following conditions are met:
(a)The street to be controlled is within a residence district as defined in Section 515 0fthe California
Vehicle Code, and
(b)The street to be controlled is classified a collector or is functioning as a collector, and
(c)The subject intersection is not within 600 feet from the nearest controlled intersection along the
collector, and --
(d)There is a parallel arterial highway that can be used as an alternative route, then
The subject intersection shall receive a bonus of 10 points. POINTS:
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 3 of 9
ALL-WAY STOP POINT SYSTEM CRITERIA:
1 ) ACCIDENT WARRANT: ( 25 points )
Five Points are assigned for each accident susceptible to correction by an all-way stop control during any 12-
month period prior to the investigation date.
Total number of accidents correctible by all-way stop: ~
Maximum 25 points POINTS:
2) UNUSUAL CONDITION WARRANT: ( 21 points )
Where unusual conditions exist, such as a school, fire station, playground, horizontal or vertical curves. etc.,
points are assigned on the basis of engineering judgment. Unusual conditions shall be considered only if
within 500 feet of the subject intersection. In residential neighborhoods where there is a concentration of
school-age children activities separated from the residential neighborhood by a collector street and coupled
with other conditions, the City Engineer or his designee may apply traffic engineering judgment and waive the
45-point minimum point requirement to qualify the intersection for an all-way stop control.
The 45-point minimum requirement may be waived and an all-way stop may be installed only if less
restrictive controls have not corrected a documented problem.
All-way stops may be justified based on projected volumes and accident frequency when traffic signals are
warranted and will be installed within a specified period of time.
UNUSUAL CONDITIONS:
1 ) Adjacent to school, fire station, playgrotmd, senior center and/or amusement park.
(7 points maximum )
a) within 100' of the intersection. 7 points
b) between 101 '-250' from the intersection 5 points
c) between 251 'd$00' from the intersection 3 points
d) within 500' of the intersection 1 point
2) Any visibility obstruction including horizontal and/or vertical curves which result in limited
stopping sight distance based on either the posted speed limit or the 85% tile speed, whichever is
higher. (7 points maximum)
a) provides for less than 40% of the required sight distance. 7 points
b) provides for less than 50% of the required sight distance. 6 points
c) providesforlessthan60%oftherequiredsightdistance. 5points
d) provides for less than 70% of the required sight distance. 4points
e) provides for less than 80% of the required sight distance. 3 points
f) provides for less than 90% of the required sight distance. 2 points
if) vrovides for less than 100 % of the reauired siffht distance. 1 noint
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 4 of 9
3) An intersection leading to an arterial from an interior (circular) collector.
(2 points)
4) Intersection with steep grades within 500' from the intersection on the downhill approach.
a) greater than 9% grade 7 points
b) greater than 8% grade 5 points
c) greater than 7% grade 3 points
d) greater than 6% grade 1 point
5) Intersection is on "Suggested Route To School" and no other controlled crossing is located within
600'. (7 points maximum)
a) intersection is 300' from school grounds. 7 points
b) intersection is 400' from school grounds 5 points
c) intersection is 500' from school grounds 3 points
d) intersection is 600' from school grounds 1 point
6) High approach speeds.
a) prevailing speeds are up to 5 mph higher than posted speed. 1 point
b) prevailing speeds are up to 10 mph higher than posted speed. 4 points
c) prevailing speeds are more than 10 mph higher than posted speed. 7 points
7) Adjacent to bus stop 2 points
Public mailbox 2 points
School bus drop-off 7 points
Maximum 21 points POINTS:
3) PEDESTRIAN VOLUME: ( 20 points )
Consideration is given to large numbers of pedestrians crossing the major street during the busiest hour of
an average day.
Pede~trianq erassing major ~treet, Tnral during the p~'ak pedestrian hnnr
Volumes: 1-10 11-20 20-30 31-40 41-OVER
Points: 4 8 12 16 20
Maximum 20 points POINTS:
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 5 of 9
] ArtoPTED .y: Resolution No.I ATED:I
4) TRAFFIC VOLUME: ( 24 POINTS )
Points are dependent upon the magnitude of vehicular volumes entering the intersection during the eight
busiest hours of an average day.
Traffic Counts (circle eight highest hour volumes):
Hour Ending At:
Dir 0600 0700 0800 0900 1000 1100 1200 1300
NB
SB
Subtotal
EB
WB
Subtotal
Hours Ending At:
Dir 1400 1500 1600 1700 1800 1900 2000
NB
SB
Subtotal
EB
WB
Subtotal
TOTAL
-3 POINTS ARE ASSIGNED PER HOUR WHEN TOTAL ENTERING VEHICULAR VOLUMES
EXCEED 500 AND MINOR STREET VOLUMES (INCLUDING PEDESTRIANS) EXCEED 200.
-2 POINTS ARE ASSIGNED PER HOUR WHEN TOTAL ENTERING VOLUMES EXCEED 500
BUT MINOR STREET VOLUMES ARE LESS THAN 200, BUT MORE THAN 100.
-1 POINT IS ASSIGNED PER HOUR WHEN TOTAL ENTERING VEHICULAR VOLUMES
EXCEED 500 BUT MINOR STREET VOLUMES ARE LESS THAN 100.
-1 POINT IS ASSIGNED PER HOUR WHEN TOTAL ENTERING VEHICULAR VOLUMES DO
NOT MEET 500, BUT MINOR STREET VOLUMES EXCEED 200.
In residence districts as defined by Section 5 15 CVC, if the 85th percentile approach speed of the major
street exceeds 35 miles per hour, the minimum vehicular volume warrants is 70% of the above
requirements.
Maximum 24 points POINTS:
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 6 of 9
ADOPTED BY: Resolution No. [ OATEn:
5) TRAFFIC VOLUME DIFFERENCE (10 POINTS)
All-way stops operate best when the major and minor street approach traffic volumes are nearly
equal. Points shall be assigned in accordance with the following table:
*24-14nnr Minnr ~I Approach Volume
x100% =
*24-Hour Major St. Approach Volumes
pnint~
95-100 10
85-94 9
75-84 8
65-74 7
· 55-64 6
45-54 5
35-44 4
25-34 3
15-24 2
5-14 1
0`4 0
Maximum 10 points POINTS:
*For T-intersections, the percent is the ratio of the minor street approach volume to the highest
single leg approach volume on the major street multiplied by one hundred.
CALTRANS CRITERIA (Chapter 4 CalTrans Traffic Manual)
Any of the following conditions may warrant a multi-way STOP sign installation, regardless of the point
system:
1) Where traffic signals are warranted and urgently needed, the multi-way stop may be an interim
measure that can be installed quickly to control traffic while an'angements are being made for the
signal installation.
2) An accident problem, as indicated by five or more reported accidents within a 12 month period of a
type susceptible to correction by a multi-way stop installation. Such accidents include right- and
left-turn collisions as well as fight-angle collisions.
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: AlbWay Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 7 of 9
ADOPTED BY: Resolution No. I DATED:
3) Minimum traffic volumes - The total vehicular volume entenng the intersection from all approaches
must average at least 500 vehicles per hour for any 8 hours of an average day, and the combined
vehicular and pedestrian volume from the minor street or highway must average at least 200 units per
hour for the same 8 hours, with an average delay to minor street vehicular traffic of at least 30 seconds
per vehicle during the maximum hour, but when the 85-percentile approach speed of the major street
traffic exceeds 40 miles per hour ( ** ), the minimum vehicular volume warrant is 70 percent of the
above requirements.
( ** ) This speed applies only to CalTrans Criteria
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 8 of 9
I ADOPTED BY: Resolution No. [ DATED: I
ALL-WAY STOP SUMMARY
INTERSECTION:
(MAJOR) (MINOR)
DATE iNVESTIGATION WAS COMPLETED:
TOTAL SCORE: _ points out of a possible 100.
The minimum required to justify an all-way stop control is 45 points.
INTERSECTION DIAGRAM:
COUNCIL POLICY
CITY OF CHULA VISTA
SUBJECT: All-Way Stop POLICY EFFECTIVE
NUMBER DATE PAGE
478-03 9 of 9
RECOMMENDATIONS:
REMARKS:
M:\Council Policy Updates\478~03, All Way Stop_fp,doc