TC - Item 3B - Traffic Review at the Intersection of Ramona Boulevard and Burton Avenue
R OSEMEAD T RAFFIC C OMMISSION
S TAFF R EPORT
TO: TRAFFIC COMMISSION
FROM: GLORIA MOLLEDA, CITY MANAGER
DATE: SEPTEMBER 9, 2021
SUBJECT: TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA
BOULEVARD AND BURTON AVENUE
SUMMARY
On behalf of the City of Rosemead, engineering staff completed a traffic review and recommended
appropriate measures to improve and evaluate the existing stop signage, pavement legends, and
markings at the intersection of Ramona Boulevard and Burton Avenue.
The intersection currently is an all-way stop. The placement of all traffic control devices is dictated
by engineering judgment and based on guidelines found in the CAMUTCD (California Manual on
Uniform Traffic Control Devices) and the CVC (California Vehicle Code). On behalf of the City
of Rosemead, engineering staff has completed a traffic analysis to evaluate the intersection and
recommend appropriate measures that would increase the visibility of the stop signs at intersection.
ANALYSIS
The traffic review included an analysis of the existing roadway conditions and review of
approximately 6 years of available collision data.
The intersection of Ramona Boulevard and Burton Avenue is an all-way stop and is within the
City of Rosemead. Ramona Boulevard is an east/west major collector roadway and is
approximately 28-feet wide, with one lane in each direction. The roadway has a solid double
yellow centerline to the west of the intersection with Burton Avenue and a solid yellow centerline
to the east of the intersection with Burton Avenue. Parking is allowed on the south side of the
Survey (Speed Survey), Ramona Boulevard has a speed limit of 30 mph except as shown by the
15 MPH Curve warning signage (W1-2 (L&R)) as shown in Figure 2 of Attachment A for vehicles
traveling along the curve just west of Burton Avenue. Land use through this section of Ramona
Boulevard is Single Family Residential. Burton Avenue is a north/south local roadway and is
approximately 32-feet wide, with one lane in each direction and no marked centerline. Parking is
allowed on the south side of the street except during street sweeping days. Burton Avenue has a
posted speed limit of 25 MPH. Land use along this section of Burton Avenue is Single Family
Residential.
City Traffic Commission Meeting
September 9, 2021
Page 2 of 3
Collision data was obtained from the computerized collision records system maintained by the
State of California called the Statewide Integrated Traffic Records Systems (SWITRS). A review
and analysis of all collisions that occurred within 200-feet of the intersection of Ramona Boulevard
and Burton Avenue was conducted over a 6-year period between January 2015 to the most recent
available accident data, December 2020. There was a total of 3 accidents reported. Per the review
of the collision history, there were 3 collisions reported within 200-feet of the intersection of
Ramona Boulevard and Burton Avenue within the 6-year period. Of the 3 collisions, 2 collisions
were rear ends, and 1 was a sideswipe with 2 of the collisions reported to be caused by unsafe
speeds, and 1 reported was due to an improper turn. It appeared that most were a result of vehicles
exiting from driveways or parking spaces to enter onto the stream of traffic. No collisions were
reported within the intersection.
STAFF RECOMMENDATION
The placement of all traffic control devices is dictated by engineering judgment and based on
guidelines found in the CAMUTCD (California Manual on Uniform Traffic Control Devices) and
the CVC (California Vehicle Code). The installation of all official traffic control devices is also
based on an engineering review with justification.
After a thorough review of existing field and traffic conditions and per the California Manual on
Uniform Traffic Control Devices (CAMUTCD), California Vehicle Code (CVC), based on the
traffic review and engineering judgement, it was determined that the intersection of Ramona
Boulevard and Burton Avenue would benefit from additional traffic control measures in order to
increase the visibility of the all-way stop for vehicles approaching the intersection of Ramona
Boulevard and Burton Avenue.
A detailed traffic report and proposed figure diagram is attached as Attachment A to this staff
report, please refer to the properad diagram in the attachment. Please refer to the below list for
recommendations and to Figure 4 found in Attachment A for an Aerial view of the proposed
recommendations and to Figures 5 through 9 found in Attachment A for a street view of the
proposed recommendations.
Below is a detailed list of the recommendations:
1. Install new larger STOP Signs (36x36) along with an All Way (R1-3P) plaque mounted
under each STOP Sign at the Intersection of Ramona Boulevard and Burton Avenue as
shown.
a. Larger STOP Signs:
awareness of the intersection. The visibility of intersections and ability of
approaching drivers to perceive them can be enhanced by installing larger signs at
intersections. This should follow the guidelines per CAMUTCD Table 2B.1.
City Traffic Commission Meeting
September 9, 2021
Page 3 of 3
b. All Way (R1-3P) Plaque:
that all directions of travel are required to stop at the intersection. (R1-
2. Install red retroreflective strips on all the STOP posts, per CAMUTCD Section 2B.10,
paragraph 6.
a. Retroreflective strips are strips installed on posts that match the background of
the sign which aids to enhance the visibility of the STOP Signs and is beneficial
when additional attention needs to be drawn to a stop sign especially during
nighttime conditions.
3. Refresh STOP legend and bar at STOP locations (high visibility paint) at the intersection
of Ramona Boulevard and Burton Avenue.
a. STOP Pavement Legend and bar: a STOP pavement legend and bar provides
ion that requires
a vehicle to make a complete Stop.
4. Repaint the yellow painted crosswalk to white (high visibility paint) ladder stripe for the
west leg at the intersection of Ramona Boulevard and Burton Avenue.
a. Repaint the Crosswalk in the west leg white. Per CVC Section 21368 and
from a school building with no other marked crossings the crosswalk should be
painted white.
5. Install STOP Ahead (W3-1) Symbol Sign along Burton Avenue (high visibility paint).
a. STOP Ahead (W3-1) Sign:
that they are approaching an intersection that requires a vehicle to make a complete
Stop per CAMUTCD 2C.05.
Prepared by:
Jana Robbins, Contract Traffic Engineering Division
Attachments:
A. Attachment A - Technical Engineering Report: Traffic Review of Signage and
Markings on San Gabriel Boulevard Near Hellman Avenue and the EB I-10 Freeway
On-Ramp
TRANSTEch
TO: Rosemead Traffic Commission
FROM: Traffic Engineering, Transtech Engineers, Inc.
DATE: September 2, 2021
SUBJECT: TRAFFIC REVIEW ATTHE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
INTRODUCTION/BACKGROUND
On behalf of the City of Rosemead, engineering staff completed a traffic review and recommended
appropriate measures to improve and evaluate the existing stop signs, pavement legends, and markings
at the intersection of Ramona Boulevard and Burton Avenue. The intersection currently is an all -way stop.
The placement of all traffic control devices is dictated by engineering judgment and based on guidelines
found in the CAMUTCD (California Manual on Uniform Traffic Control Devices) and the CVC (California
Vehicle Code). On behalf of the City of Rosemead, engineering staff has completed a traffic analysis to
evaluate the intersection and recommend appropriate measures that would increase the visibility of the
stop signs at intersection. The traffic review included an analysis of the existing roadway conditions and
review of approximately 6 years of available collision data. Please refer to Figure 1 below for a vicinity
map of the subject location.
Figure 1: Vicinity Map
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LEGEND
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Intersection of Interest:
Ramona Boulevard and Burton Avenue
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OSEME'AD
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 1 of 7
TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
Figure 2: Existing Conditions Map
t0 LEGEND
� ) Intersection of Interest:
Ramona Blvd at Burton Ave
Stop (111-1) Sign
Curve (W1-2 (L & R)) Sign with
Painted "15"toindicated l5-
O MPH Speed Limit
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Two Direction Arrow (Wl-7)
Sign with Type N Object
Marker mounted below
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r- r -i ✓ - • Stop Ahead (W3-1)Sign
j1—Alma&& I N
EXISTING CONDITIONS
Ramona Boulevard: Ramona Boulevard is an east/west major collector roadway and is approximately 28 -
feet wide, with one lane in each direction. The roadway has a solid double yellow centerline to the west
of the intersection with Burton Avenue and a solid yellow centerline to the east of the intersection with
Burton Avenue. This portion of Ramona Avenue is located in the City of Rosemead. Parking is allowed on
the south side of the street except during street sweeping days. Per the City of Rosemead's Engineering
and Traffic Survey (Speed Survey), Ramona Boulevard has a speed limit of 30 mph except as shown by the
15 MPH Curve warning signage (W1-2 (L&R)) as shown in Figure 2 for vehicles traveling along the curve
just west of Burton Avenue. Land use through this section of Ramona Boulevard is Single Family
Residential.
Burton Avenue: Burton Avenue is a north/south local roadway and is approximately 32 -feet wide, with
one lane in each direction and no marked centerline. This portion of Burton Avenue is located in the City
of Rosemead. Parking is allowed on the south side of the street except during street sweeping days. Burton
Avenue has a posted speed limit of 25 MPH. Land use along this section of Burton Avenue is Single Family
Residential.
PICTURE SUMMARY: EXISTING CONDITIONS
,,.
Oaf
th along Burton Ave toward Ramona Blv
' O FMFAD
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 2 of 7
TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
�r
Westbound along Ramona Blvd toward Burton Ave
8 -
Collision data was obtained from the computerized collision records system maintained by the State of
California called the Statewide Integrated Traffic Records Systems (SWITRS). A review and analysis of all
collisions that occurred within 200 -feet of the intersection of Ramona Boulevard and Burton Avenue was
conducted over a 6 -year period between January 2015 to the most recent available accident data,
December 2020. There was a total of 3 accidents reported. A summary breakdown by year of the number
of accidents at the studied intersection is shown below and Figure 3 shows the Collision Diagram.
2020: 0 accidents
2019: 0 accidents
2018: 0 accidents
2017: 0 accidents
2016: 3 accidents
2015: 0 accidents
Table 1 provides a detailed list of the collisions within 200 -feet of Ramona Boulevard and Burton Avenue
Table 1: Summary of Collision History
N
Location
Dist.
Date
Collision
PCF
Severity
Factor
o
Type
BURTON AV AT
IMPROP
SB UNS TURN VEH
1
191'S
10/14/16
SIDESWIPE
PDO
RAMONA BL
TURN
HIT SB PARKED VEH
RAMONA BLAT
UNSAFE
EB THRU VEH HIT NB
2
87'W
2/6/16
REAR END
INJURY
BURTON AV
SPEED
THRU VEH
RAMONA BLAT
UNSAFE
EBTHRUVEHHITNB
3
135'E
3/6/16
REAR END
INJURY
BURTON AV
SPEED
THRU VEH
Per the review of the collision history, there were 3 collisions reported within 200 -feet of the intersection
of Ramona Boulevard and Burton Avenue within the 6 -year period. Of the 3 collisions, 2 collisions were
rear ends, and 1 was a sideswipe with 2 of the collisions reported to be caused by unsafe speeds, and 1
reported was due to an improper turn. It appeared that most were a result of vehicles exiting from
driveways or parking spaces to enter into the stream of traffic. No collisions were reported within the
intersection.
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 3 of 7
TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
After a thorough review of existing field and traffic conditions and per the California Manual on Uniform
Traffic Control Devices (CAMUTCD), California Vehicle Code (CVC), based on the traffic review and
engineering judgement, it was determined that the intersection of Ramona Boulevard and Burton Avenue
would benefit from additional traffic control measures in order to increase the visibility of the all -way stop
for vehicles approaching the intersection of Ramona Boulevard and Burton Avenue. The placement of all
traffic control devices is dictated by engineering judgment and based on guidelines found in the CAMUTCD
(California Manual on Uniform Traffic Control Devices) and the CVC (California Vehicle Code). The
installation of all official traffic control devices is also based on an engineering review with justification.
Please refer to the below list for recommendations and to Figure 4 for an Aerial view of the proposed
recommendations and to Figures 5 through 9 for a street view of the proposed recommendations.
Recommendations List:
1. Install new larger STOP Signs (36x36) along with an All Way (R1 -3P) plaque mounted under each
STOP Sign at the Intersection of Ramona Boulevard and Burton Avenue as shown.
Is•i• 24:24 aam aaKas
• Larger STOP Signs: Larger 36"x36" STOP signs will
increase the driver's awareness of the intersection. The
visibility of intersections and ability of approaching
drivers to perceive them can be enhanced by installing
larger signs at intersections. This should follow the
guidelines per CAMUTCD Table 213.1.
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 4 of 7
TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
• All Way (R1 -3P) Plaque: An All Way plaque will increase
the driver's awareness that all directions of travel are
required to stop at the intersection. (R1 -3P) 18"x6".
2. Install red retroreflective strips on all the STOP posts, per CAMUTCD Section 213.10, paragraph 6.
• Retroreflective strips are strips installed on posts that
match the background of the sign which aids to enhance
the visibility of the STOP Signs and is beneficial when
additional attention needs to be drawn to a stop sign
especially during nighttime conditions.
3. Refresh STOP legend and bar at STOP locations (high visibility paint) at the intersection of Ramona
Boulevard and Burton Avenue.
• STOP Pavement Legend and bar: a STOP pavement
legend and bar provides further awareness for driver's
that they are approaching an intersection that requires a
vehicle to make a complete Stop.
4. Repaint the yellow painted crosswalk to white (high visibility paint) ladder stripe for the west leg
at the intersection of Ramona Boulevard and Burton Avenue.
• Repaint the Crosswalk in the west leg white. Per CVC
IN. , Section 21368 and CAMUTCD 313.18 unless a crosswalk is
within 600' of school grounds or 2,800' from a school
building with no other marked crossings the crosswalk
should be painted white.
5. Install STOP Ahead (W3-1) Symbol Sign along Burton Avenue (high visibility paint).
j
R0S-0 EAD
• STOP Ahead (W3-1) Sign: STOP Ahead Signs increase the
driver's awareness that they are approaching an
intersection that requires a vehicle to make a complete
Stop per CAMUTCD 2C.05.
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 5 of 7
TRAFFIC REVIEW AT THE INTERSECTION OF RAMONA BOULEVARD AND BURTON AVENUE
Figure 4: Proposed Aerial Diagram
LEGEND
Ramona BWd Install new STOP (R1-1)Sign
IS ALLWAY(Rl-3P)
1 t • GAJ r'� plaque mounted below
/- Install red retroreflective strips
on the STOP posts
Refresh Advance Limit Lines in
White Visibility Paint along with
GT STOP pavement legend
m
Install Stop Ahead (W3-1) Sign
p}!`, approximately 175 -feet from
t Ramona Blvd
Refresh Ladder Striped Crosswalk
in White High Visibility Paint
L N
Figure 6: Proposed Street View Diagram: Westbound along Ramona Boulevard at Burton Avenue
Repaint the yellow painted crosswalk to white (high visibility paint)
�TERNATIof�AI MAIiKI ladder stripe for the west leg at the intersection of Ramona Blvd and
Burton Avenue.
ROSEWEAD
`l
CITY OF ROSEMEAD
Prepared By: Transtech Engineers, Inc. I Page 6 of 7
Install new STOP (R1-1) Sign (36x36) with ALL WAY (R1 -3P) plaque
underneath and install red retroreflective strips on the STOP posts
Refresh Advance Limit Lines in White High
Visibility Paint along with STOP pavement legend
OR, Refresh Advance Limit Lines in White High Install new STOP (R1-1) Sign
Visibility Paint along with STOP pavement legend (36x36) with ALL WAY (R1 -3P)
plaque underneath and install
t p STEP red retroreflective strips on
JI „Kr
ALL WAY the STOP posts
y
Buton Ave
♦ � w
'% STOP
1
It i'
Install Stop Ahead (W3-1)
Sign onto existing light pole
approximately 175 -feet from
Ramona Blvd