TC - Item 3A - Traffic Calming Measures for Location 2: Falling Leaf Avenue between Garvey Avenue and Graves AvenueROSEMEAD TRAFFIC COMMISSION
TO: TRAFFIC COMMISSION
FROM: DIRECTOR OF PUBLIC WORKS
DATE: SEPTEMBER 5, 2024
STAFF REPORT
SUBJECT: TRAFFIC CALMING REVIEW ALONG FALLING LEAF AVENUE
BETWEEN GARVEY AVENUE AND GRAVES AVENUE
SUMMARY
On behalf of the City of Rosemead, engineering staff has completed a review of the road segment
along Falling Leaf Avenue, as well as recommended appropriate improvements at the location of
Falling Leaf Avenue between Garvey Avenue and Graves Avenue.
The City of Rosemead has received a request to review the segment of Falling Leaf Avenue,
between Garvey Avenue and Graves Avenue. The city is requesting to evaluate this segment for
the installation of traffic calming measures. In response to this request and on behalf of the City,
engineering staff has completed a traffic review of this segment of Falling Leaf Avenue to
determine if the street segment qualifies for the installation of traffic calming measures.
ANALYSIS
The traffic review included an analysis of the existing roadway conditions, a field review, and a
review of approximately 3 -years of available collision data.
Existing Conditions:
Falling Leaf Avenue is a north/south street, considered a local road per the California Road System
Functional Classification by Caltrans. Falling Leaf Avenue has a prima facie speed limit of 25
MPH. The roadway is approximately 26 -feet wide with one lane of travel in each direction and no
marked centerline. Parking is allowed along the west side of the street, except during street
sweeping hours and areas marked with red curb. Land use along this segment of Falling Leaf
Avenue consist of single-family residential housing and Jay Imperial Park. This segment has
sidewalks on both sides of the street.
City Traffic Commission Meeting
September 5, 2024
Page 2 of 2
STAFF RECOMMENDATION
After a thorough review of existing field and traffic conditions and per the guidelines in the
California Manual on Uniform Traffic Control Devices (CAMUTCD), California Vehicle Code
(CVC), and based on engineering judgement, it was determined that the segment along Falling
Leaf Avenue between Garvey Avenue and Graves Avenue meets the requirements for the
installation of traffic calming devices along the street.
Please refer to the Installation Exhibit in Attachment A for a conceptual exhibit representation
of the proposed recommendations.
These improvements include:
1. INSTALL SPEED LIMIT SIGNS (R2 — 1) AND 25 PAVEMENT LEGEND: Install
"25" Speed Limit signs (R2 — 1) for northbound and southbound directions of travel along
Falling Leaf Avenue, between Garvey Avenue and Graves Avenue.
a. For southbound direction, install sign along the west side of the street, approximatelly
150 -ft south of Garvey Avenue. Install "25" Pavement Legend adjacent to the signage.
b. For the northbound direction, install sign along the east side of the street, aproximatelly
150 -ft north of Graves Avenue. Install "25" Pavement Legend adjacent to the signage.
2. INSTALL YELLOW CENTERLINE: Install 50 -ft of solid yellow centerline along
Falling Leaf Avenue, at the intersection with Garvey Avenue, south of the intersection.
Prepared by:
Allison Richter, Contract Traffic Engineering Division
Attachments:
A. Attachment A — Technical Traffic Engineering Report
ea
TRANSTEch
TO: City of Rosemead, Department of Public Works
FROM: Transtech Engineers, Inc.
DATE: September 5, 2024
SUBJECT: TRAFFIC CALMING ON FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES
AVENUE
INTRODUCTION
The City of Rosemead has received a request to review the segment of Falling Leaf Avenue between
Garvey Avenue and Graves Avenue. The request is to implement traffic calming measures such as speed
humps along the segment of Falling Leaf Avenue due to speeding vehicles. In response to this request and
on behalf of the City, engineering staff has completed a traffic review at the subject segment. The traffic
review included a review of existing conditions of the segment, 3 -years of available collision data, Average
Daily Traffic (ADT) counts and 24-hour speed survey counts.
Figure 1: Vicinity Map
a
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a Q
Kelburn Ave
E
3
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Denton Ave
LEGEND
Cos -ltrA
e.
Segment: Falling Leaf Avenue between Garvey Avenue and Graves Avenue (2,950 Feet)
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
EXISTING CONDITIONS
Figure 1: Existing Conditions Diagram — Falling Leaf Avenue between Garvey Avenue and Graves Avenue
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• Q'
LEGEND No Parking; Monday;
No Vehicles Over 3 PARKING 6AM-10AM Street
■ Stop Sign (111-1) 4 Tons sign (115-2) Sweeping Signage
6e■ -10u
oveN3TONs Anytime (R26
Variation)
PARKING
No Parking at Any
aNY Time sign (115-2)
TINE
Falling Leaf Avenue: Within the City of Rosemead, Falling Leaf Avenue is a north/south street, considered
a local road per the California Road System Functional Classification by Caltrans. Falling Leaf Avenue has
a prima facie speed limit of 25 MPH. The roadway is approximately 26 -feet wide with one lane of travel
in each direction and no marked centerline. Parking is allowed along the west side of the street, except
during street sweeping hours and areas marked with red curb. Land use along this segment of Falling Leaf
Avenue consist of single-family residential housing and Jay Imperial Park. This segment has sidewalks on
both sides of the street.
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
COLLISION DATA
Collision data was obtained from the computerized collision records system maintained by the State of
California Statewide Integrated Traffic Records System (SWITRS). A review of collision history within the
segment of Falling Leaf Avenue between Garvey Avenue and Graves Avenue was conducted over a 3 year
period between January 2021 to the most recent available data, December 2023.
Intersection Collision Breakdown
Veh vs.
Veh
Veh vs.
Ped
Veh vs.
Bike
2
1
0
Collision Breakdown - Year
2023
2022
2021
1
1
0
Table 1: Collision Table: Falling Leaf Avenue between Garvey Avenue and Graves Avenue
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Severity
1- Fatal
2 - Severe Injury
Motor
Day of
Lighting
3 - Other Visible
Vehicle,
Collison
Primary
Primary
Secondary
Factor and
Collision
p
Date
Dist.
Time
the
(Day, Night,
ollision TypeInjury
Pedestrian,
Road
Road
Week
Etc.)
4 -Complaint of
Bicycle
Detail
Factor
Descriptions
Pain
Involved
5 - Prop Dam
Only (PDO)
FALLING
NB BACKING
STRTNG/BA
1
8/22/2023
GARVEY AVE
30'S
16:00
TUE
DAYLIGHT
REAR END
5
OTHER MV
MV HITS NB
LEAF AVE
CKNG
STOPPED MV
SB WRONG
2
4/22/2022
FALLING
NEWMARK
180'N
16:04
FRI
DAYLIGHT
BROADSIDE
5
OTHER MV
WAY MV HITS
WRONG
LEAF AVE
AVE
SB LFT TURN
SIDE
MV
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
AVERAGE DAILY TRAFFIC (ADT)
Average Daily Traffic (ADT) data was obtained from counts taken on Thursday, March 21,2024, Friday,
March 22, 2024, and Saturday, April 20, 2024, for Falling Leaf Avenue between Garvey Avenue and Graves
Avenue. A summary of ADT data is shown in Table 2, 3 and 4: Average Daily Traffic (ADT). The ADT is
attached (Attachment 1, 3, & 5) at the end of the report.
Table 2: Average Daily Traffic (ADT), taken on Thursday, March 21, 2024.
Location Vehicles per Day (vpd) Vehicles per Day (vpd)
3/21/20. 3/21/2024 1
Vehicles per Day (vpd)
3/21/2024
Falling Leaf Avenue
NB SB TOTAL
between Garvey Avenue
499 611 1110
and Graves Avenue
Table 3: Average Daily Traffic (ADT), taken on Friday, March 22, 2024.
Vehicles per Day (vpd) Vehicles per Day (vpd) Vehicles per Day (vpd)
Location 3/22/2024 3/22/2024 3/22/2024
Falling Leaf Avenue
NB SB TOTAL
between Garvey Avenue 496 633 1129
and Graves Avenue
Table 4: Average Daily Traffic (ADT), taken on Saturday, April 20, 2024.
Vehicles per Day (vpd) Vehicles per Day (vpd) Vehicles per Day (vpd)
Location 4/20/2024 4/20/2024 4/20/2024
Falling Leaf Avenue
between GaNB SB TOTAL
rvey Avenue
and Graves Avenue 433 519 952
SPEED SURVEY
To assess the speed at which vehicles are traveling along Falling Leaf Avenue, a 24-hour speed survey was
taken. A 24-hour speed survey was taken on Thursday, March 21, Friday, March 22, and Saturday, April
20, 2024, for Falling Leaf Avenue between Garvey Avenue and Graves Avenue. The average 85th percentile
speed of vehicles along Falling Leaf Avenue among the 3 days observed is at 31 MPH. This means that 85
percent of the vehicles sampled are traveling at 31 MPH or below, which is slightly above the prima facie
speed limit of 25 MPH. Table 5 below shows the Thursday, March 21, Friday, March 22, and Saturday,
April 20, 2024, speed survey results. The speed summary is attached (Attachment 2, 4 & 6) at the end of
the report.
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
ble 5: Speed Survey along Falling Leaf Avenue between Garvey Avenue and Graves Avenue (3/21/24,
Dir. of Date/Time of
Location 85%ile Speed Prima Facie Limit
Travel Survey
Falling Leaf Avenue between
Garvey Avenue and Graves
Avenue
NB/SB
3/21/2024
24-hour
31 MPH
25 MPH
Falling Leaf Avenue between
Garvey Avenue and Graves
NB/SB
3/22/2024
31 MPH
25 MPH
24-hour
Avenue
Falling Leaf Avenue between
Garvey Avenue and Graves
NB/SB
4/20/2024
31 MPH
25 MPH
24-hour
Avenue
PROPOSED SPEED HUMP CRITERIA
The City is in the process of developing a Traffic Calming Policy that would include criteria for the
installation of speed humps. The policy would need to be considered and approved by City Council prior
to the recommendation and installation of a speed hump. Within the proposed traffic calming policy
that is currently being developed, a street must meet the following criteria to be considered for a speed
hump, including:
Items that are typically required for the installation of speed humps includes:
• Residential Street, or a Local Road
• Posted Speed Limit of 30 MPH or below
• ADT (Average Daily Traffic) of 500 to 2500 vehicles
• One lane each direction, with a roadway width of 40 -feet or less
• Resident Petition
Although the residents asked for speed hump installation at this location, speed humps cannot be
considered at this time without official review and approval by City Council.
RECOMMENDATIONS
After a review of existing traffic conditions and following the proposed speed hump criteria, the California
Manual on Uniform Traffic Control Devices (CAMUTCD), California Vehicle Code (CVC), based on the traffic
review and engineering judgement, the segment of Falling Leaf Avenue between Garvey Avenue and
Graves Avenue was found to qualify for the installation of traffic calming measures. The following
measures are recommended and shown in the Recommendation Exhibit below:
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
1. INSTALL SPEED LIMIT SIGNS (112 —1) AND 25 PAVEMENT LEGEND: Install "25" Speed Limit signs
(R2 —1) for northbound and southbound directions of travel along Falling Leaf Avenue, between
Garvey Avenue and Graves Avenue.
a. For southbound direction, install sign along the west side of the street, approximatelly 150 -ft
south of Garvey Avenue. Install "25" Pavement Legend adjacent to the signage.
b. For the northbound direction, install sign along the east side of the street, aproximatelly 150 -
ft north of Graves Avenue. Install "25" Pavement Legend adjacent to the signage.
2. INSTALL YELLOW CENTERLINE: Install 50 -ft of solid yellow centerline along Falling Leaf Avenue,
at the intersection with Garvey Avenue, south of the intersection.
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RECOMMENDATION EXHIBIT: ROSEMEAD, CA—SEGMENT OF FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
Date Prepared. 9-5-24
OINSTALL SPEED LIMIT SIGNS (112 — 1) AND "25" PAVEMENT LEGEND: Install "25" Speed Limit signs (132 — 1) for northbound and
southbound directions of travel along Falling Leaf Avenue, between Garvey Avenue and Graves Avenue.
a. For southbound direction, install sign along the west side of the street, approximatelly 150 -ft south of Garvey Avenue.
Install "25" Pavement Legend adjacent to the signage. SPEED
b. For the northbound direction, install sign along the east side of the street, aproximatelly 150 -ft north of Graves Avenue. LIMIT
Install "25" Pavement Legend adjacent to the signage.
2 O INSTALL YELLOW CENTERLINE: Install 50 -ft of solid yellow centerline along Falling Leaf Avenue, at the intersection with 25
Garvey Avenue.
TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
ATTACHMENTS
1. ADT (Thursday, March 21, 2024), Falling Leaf Avenue between Garvey Avenue and Graves
Avenue.
2. Speed Survey (Thursday, March 21,2024), Fa lli ng Leaf Avenue between Garvey Avenue and
Graves Avenue.
3. ADT (Friday, March 22, 2024), Falling Leaf Avenue between Garvey Avenue and Graves Avenue.
4. Speed Survey (Friday, March 22,2024), Falling Leaf Avenue between Garvey Avenue and Graves
Avenue.
5. ADT (Saturday, April 20,2024), Falling Leaf Avenue between Garvey Avenue and Graves
Avenue.
6. Speed Survey (Saturday, April 20, 2024), Falling Leaf Avenue between Garvey Avenue and
Graves Avenue
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
Attachment 1: ADT(Thursday, March 21, 2024), Falling Leaf Avenue between Garvey Avenue and
Graves Avenue
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Falling Leaf Ave get Garvey Ave & Graves Ave
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Care: 3/2e/2024
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
Attachment 2: Speed Survey (Thursday, March 21, 2024), Falling Leaf Avenue between Garvey Avenue
and Graves Avenue.
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Day: Tm,r:eay
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
Attachment 3: ADT(Frid by, March 22, 2024), Falling Leaf Avenue between Garvey Avenue and Graves
Avenue.
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Day: Friday
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
Attachment 4: Speed Survey (Friday, March 22, 2024), Falling Leaf Avenue between Garvey Avenue and
Graves Avenue.
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEV AVENUE AND GRAVES AVENUE
Attachment 5: ADT (Saturday, April 20, 2024): Falling Leaf Avenue between Garvey Avenue and Graves
Avenue.
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Day: Saturday
Cate: 4/20/2024
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TRAFFIC REVIEW OF THE SEGMENT FALLING LEAF AVENUE BETWEEN GARVEY AVENUE AND GRAVES AVENUE
Attachment 6: Speed Survey (Saturday, April 20, 2024) Falling Leaf Avenue between Garvey Avenue and
Graves Avenue
mean.sISNSAmarramsS..W.
SPEED
Falling Leaf Ave Bet Garvey Ave & Graves Ave
Day: Saturday
Date: 4/20/2024
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