CC – Item 4D – Staff Report – Stop Signs on Marshall Street at Vane Avenue �E M�
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eport
TO: HONORABLE MAYOR
AND MEMBERS
ROSEMEAD CITY COUNCIL
FROM: FRANK G. TRIPEPI, CITY MANAGER
DATE: FEBRUARY 4, 1998
RE: STOP SIGNS ON MARSHALL STREET AT VANE AVENUE
At the regularly scheduled November 1997 Traffic Commission meeting, the Commission
considered a request from a resident to install R-1 Stop signs on Marshall Street at Vane Avenue.
The resident stated that vehicles traveling westbound on Marshall Street often turn left onto Vane
Avenue after realizing that the roadway on Marshall ends just west of the intersection. As a result,
the vehicles tend to "speed" around the corner and "cut the turn too short" The Commission
considered the request and approved additional traffic controls at the intersection.
CONDITIONS
Marshall Street is a 36-foot wide east/west residential roadway. There are no stripes on the roadway.
Marshall Street ends approximately 150-feet west of Vane Avenue. There is a back access to
Savannah School at the cul-de-sac located on the west end of the Marshall Street. Marshall Street
is STOP controlled at its intersection with Ellis Lane. The prima facie speed limit is 25 MPH on
Vane Avenue.
Figure 1 depicts the conditions at the intersection of Marshall Street and Vane Avenue.
DATA
The traffic accident history for the area was obtained from Temple Sheriffs Station. The reported
accident history was reviewed for the period covering January 1, 1996 through October 20, 1997.
A review of the history revealed only one accident as being reported at the intersection of Marshall
Street and Vane Avenue during that period. That accident occurred on Saturday, January 25, 1997
at 1:00 a.m. The primary collision factor for the accident was listed as an `Improper Turn."
COUNCIL AGENDA
FEB 1 0 1998
ITEM No. g
Traffic Controls -MarshallNane
February 4, 1998
Page 2.
Traffic volume counts were taken on Marshall Street between Vane Avenue and Marybeth Avenue
and on Vane Avenue,just south of Marshall. The counts were taken on Wednesday, October 8, 1997
and revealed the following:
Direction 24-hour Volume Peak Hour Volume
Eastbound 177
Westbound 75 (7:30 a )
423 75 (7:30 a.m.)
Northbound 240
39 (7:45 a.m.)
Southbound
272 39 (7:45 a.m.)
DISCUSSION
the purpose of STOP controls is to assign right-of-way. The basic STOP control is typically assigned
to the street with the least volume of traffic. Beyond this basic level of control, multi-way control
is applied to locations where traffic counts on each roadway are nearly equal and heavy enough to
require rotation of right-of-way in order to minimize delay and reduce congestion. The intersection
at Marshall Street and Vane Avenue has a relatively low volume of traffic traveling through the
intersection. Approach volumes to the intersection are not "nearly equal." The primary approach
is in the westbound direction (423 vehicles each day).
The Caltrans Traffic Manual provides guidelines (attached) for the installation of multi-way STOP
controls. The first, guideline deals with the immediate need for traffic signals at the location. and
that does not apply in this case. The second guideline regarding accidents is not met in this case.
More than five(5) during the course of year is the standard to be met. And, the third guideline is
not met either. To meet that standard,traffic volumes must exceed 500 vehicles per hour during any
eight(8) hour period. Clearly, those volumes do not occur at the intersection.
Pursuant to the Caltrans guidelines, the installation of multi-way STOP controls at the intersection
of Marshall and Vane is not recommended. However, the Traffic Commission affirmed the staff
recommendation to install a STOP sign for eastbound Marshall Street at Vane and for the installation
of"double yellow"striping on Vane, south of Marshall. Those controls would serve to establish the
major movements at that location - westbound traffic on Marshall turning left onto Vane, and a
smaller amount of traffic turning right onto Vane from Marshall Street. In short, it is the Traffic
Engineer's opinion that it is best to limit potential vehicle conflict at the intersection by STOP
controlling the eastbound traffic from the cul-de-sac that makes a right turn from Marshall onto
Vane. In addition, staff believes that the installation of the "double yellow" striping will assist in
guiding drivers making left turns from Marshall onto Vane. The recommendations are outlined in
Fieure 1.
Traffic Controls - Marshall/Vane
February 4, 1998
Page 3.
RECOMMENDATION:
Staff recommends that the City Council take the following action:
1. Install an R-1 STOP sign for eastbound Marshall Street at Vane Avenue.
2. Relocate the STOP and limit line markings on Vane Avenue, south of Marshall Street.
3. Install a double yellow centerline on Marshall Street and Vane Avenue and in the turn,
westbound to southbound. -
4. Remove the existing "Type N" marker on the fence and install a red "Type N" sign with
appropriate markings behind the curb at the western terminus of the Marshall Street cul-
de-sac.
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MULTI-WAY STOP SIGN WARRANTS
(FROM CALTRANS TRAFFIC MANUAL)
•
LOCATION: Ha ka(\ greet al& Baru; r4iewe DATE: 10/7.0/ 7
The installation of multi-way STOP signs are based on the following:
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 arrangements are being made for the signal installation.
Satisfied: Yes m
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
right-angle collisions.
Satisfied: Yes No
3. Minimum traffic volumes:
(a) The total vehicular volume entering the intersection from all
approaches must average at least 500 vehicles per hour for any 8
hours of an average day, and
Ancona. EY; Cot & opj toa..k B�,uat Seatis fed: Yes m
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(b) 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
gart.e_bf• Satisfied: Yes e
(c) 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.
Satisfied: Yes m
VOLUME WORKSHEET
Guideline ^qy v fi ;,7 n.`
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(a) Total Volume 500 (350) 189 1 162. 1 48 I 341 51 194- I {261 66 I
(b) Combined Volume 200 (140) 1 Z1- l It3 1 6 15 I r3 I Li I l8 121 I
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ROSEMEAD TRAFFIC COMMISSION
NOVEMBER 6, 1997
A regular meeting of the Rosemead Traffic Commission was called to order
by Chairman Ruiz, at 7:00 p.m., in the Council Chambers, 8838 East Valley
Boulevard, Rosemead.
ROLL CALL
Present: Chairman Ruiz
Commissioners: Tirre, Knapp, Quintanilla, Baffo
Absent: None
Ex Officio: Administrative Aide: Cecilia Gallardo
Deputy Traffic Engineer: Joanne Itagaki
CALL TO ORDER
The Pledge of Allegiance was led by Commissioner Quintanilla
The Invocation was delivered by Commissioner Knapp
I. APPROVAL OF MINUTES
It was moved by Commissioner Tirre, seconded by Commissioner
Baffo, and carried unanimously to approve the minutes for October 2,
1997.
11. ORAL COMMUNICATIONS FROM THE AUDIENCE - NONE
III. OLD BUSINESS - NONE
IV. NEW BUSINESS
elle A. REQUEST FOR STOP SIGNS ON MARSHALL STREET
AT VANE AVENUE
Deputy Traffic Engineer Itagaki stated that this request came from Ms.
Christine Callen, 3639 Vane Avenue, for the installation of STOP signs
on Marshall Street at Vane Avenue. Ms. Callen had indicated that
westbound vehicles on Marshall Street turn left onto Vane Avenue when
they realize the roadway ends west of Vane Avenue. These vehicles are
"speeding" around the corner and "cut the turn too short".
Marshall Street is a 36-foot wide east/west residential roadway. There
are no strips on the roadway. Marshall Street ends approximately 150
feet west of Vane Avenue. There is back access to Savannah School in
this cul-de-sac of Marshall Street. Marshall Street is STOP controlled at
its intersection with Ellis Lane. The prima facie speed limit on Marshall
Street is 25 mph.
Vane Avenue is also a 36-foot wide residential roadway. Vane Avenue
is STOP controlled at its intersection with Marshall Street and Olney
Street (to the south). The intersection of Vane Avenue and Marshall
Street is a T-intersection. The prima facie speed limit is 25 mph on
Vane Avenue.
Traffic accident history was obtained from the Temple Sheriffs Station.
The reported accident history was reviewed for the period from January
1, 1996 through October 20, 1997. Review of the reported accident
history revealed only one accident reported at the intersection of
Marshall Street and Vane Avenue. This accident occurred on Saturday,
January 25, 1997 at 1:00 a.m. The primary collision factor reported for
this accident was "Improper Turn".
The purpose of STOP controls is to assign right-a-way. The basic
STOP control is typically assigned to the street with the least volume of
traffic. Beyond this basic level of control, multi-way control is applied
to locations to where traffic on each roadway is nearly equal and heavy
enough to require the rotation of right-a-way in order to minimize
overall delay and reduce congestion.
The intersection of Marshall Street and Avenue has a relatively low
volume of traffic traveling through the intersection. Approach volumes
to the intersection are not "nearly equal". The primary approach is in
the westbound direction (423 vehicles per day).
The first guideline deals with the immediate need for traffic signals at a
location. This does not apply to the intersection of Marshall Street and
Vane Avenue.
The second guideline is satisfied if 5 or more accidents are reported
within a 12-month period. The reported accidents at this intersection of
Marshall Street and Vane avenue revealed only one accident within
almost a 2 year period.
The third guideline is satisfied when the approach volumes to the
intersection are 500 vehicles per hour for any 8 hours. The traffic
volumes on Marshall Street and Vane Avenue do not approach this
guideline.
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The installation of STOP controls on Marshall Street are not
recommended. It is likely that an all-way stop intersection installed at
Marshall Street and Vane Avenue would be disregarded due to the
minor traffic volumes on the street and the cul-de-sac of Marshall
Street.
The concern expressed by Ms. Callen was for speeding and vehicles
making the left turn too sharp. This indicates a need for positive
direction of the vehicles on Marshall Street. in addition, the one
accident reported was caused by an improper turn.
RECOMMENDATION:
To provide positive direction and handle the volume of traffic traveling
through the intersection, the following measures are recommended:
1. Installation of STOP sign for eastbound Marshall Street at Vane
Avenue.
2. Relocation of STOP and limit line markings southerly on Vane
Avenue.
3. Installation of double yellow centerline on Marshall Street and
Vane Avenue and in the turn (westbound to southbound).
4. The removal of the existing marker on the fence.
These recommendations will:
1. Stop the minor traffic volumes from the cul-de-sac of Marshall
Street.
2. Direct vehicles around the westbound to southbound left turn
reducing the number of vehicles "turning too sharp".
Commissioner Knapp would like to include on the double center line
going around the curb, the raised reflector dots as part of the direction
for nighttime travel.
It was moved by Commissioner Knapp, seconded by Commissioner
Baffo, and carried unanimously to approve the Traffic Engineer's
recommendation, with the addition of the raised reflector dots.
V. STAFF REPORTS
Administrative Aide Gallardo stated that this would be her last meeting,
as she has accepted a job with the City of Rancho Cucamonga.
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VI. COMMISSIONER REPORTS
Commissioner Knapp stated that she has concerns regarding the new
Burger King, she sees a lot of potential for traffic problems at this
location and would like staff to consider the raised reflector dots at this
location.
Commissioner Tirre asked if there was a sign on Garvey and Rosemead
Place, going north for trucks parked on residential streets.
VII. ADJOURNMENT
There being no further business to come before the Commission, the
meeting was adjourned.
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