Diamond Bar City Council
January 16, 2024

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·142
·71
·60
·57
!"10
Golden Springs
Dr & Carpio Dr
Grand Ave &
Summitridge Ave
Diamond
Bar Blvd &
Grand Ave Golden Springs Dr
& Brea Canyon Rd
Diamond Bar Blvd
& Pathfinder Rd
Diamond Bar
Walnut
Chino Hills
Diamond Bar
Blvd & Brea
Canyon Rd
Diamond Bar
Blvd & Golden
Springs Dr
Diamond Bar
Blvd & Sunset
Crossing Rd
Brea Canyon Rd
& Pathfinder Rd
Vicinity Map
Exhibit 1
0 0.45 0.9 1.8 Miles
Study Intersections
City Boundary
Los Angeles County
Caltrans District 7
·210
·142
·60
·72
·71
·66
·57
·91
·39
·83
·90
%&605
!"5
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Los Angeles County
San Bernardino County
Orange County
S02: Installation of supplemental near-side signal heads S17PB: Install pedestrian countdown signal heads
S18PB: Install High Visibility Pedestrian Crossing as shown on the schematic maps on the following pages.

For illustration only, not
the actual Installation.

Similar to the new
installation on Grand Ave
and Golden Springs Dr.

Diamond Bar Blvd
Golden Springs Dr
S02
Install Nearside
Supplemental Signal
S18PB
Convert Existing
Crosswalk to High
Visibility Crosswalk
SI_1
Figure
Countermeasure Diagrams
Diamond Bar Boulevard and Golden Springs Drive
Location
200 ft
250’Radius Inuence Area
Diamond Bar Blvd
Sunset Crossing Rd
S02
Install Nearside
Supplemental Signal
S18PB
Convert Existing
Crosswalk to High
Visibility Crosswalk
SI_2
Figure
Diamond Bar Boulevard and Sunset Crossing Road
Location
200 ft
Countermeasure Diagrams
2 5
0’Radius Inuence Area
Grand Ave
Diamond Bar Blvd
S17PB
Install pedestrian
countdown signal heads
with Accessible
Pedestrian Signal (APS)
Countermeasure Diagrams
SI_3
Figure
Diamond Bar Boulevard and Grand Avenue
Location
200 ft
250’Radius Inuence Area
Diamond Bar Blvd
Countermeasure Diagrams
SI_4
Figure
Diamond Bar Boulevard and Pathfinder Road
Location
300 ft
S17PB
Install pedestrian
countdown signal heads
with Accessible
Pedestrian Signal (APS)
Pathfinder Rd
2 5
0’Ra
dius Inuence Area
SI_5
Figure
Diamond Bar Boulevard and Brea Canyon Road
Location
300 ft
Countermeasure Diagrams
S17PB
Install pedestrian
countdown signal heads
with Accessible
Pedestrian Signal (APS)
Brea
Ca
nyo
n
Blv
d
Diamond Bar Blvd
Inuence Area
Golden Springs Dr
Brea Canyon Rd
S02
Install Nearside
Supplemental Signal
S18PB
Convert Existing
Crosswalk to High
Visibility Crosswalk
S17PB
Install pedestrian
countdown signal heads
with Accessible
Pedestrian Signal (APS)
SI_6
Figure
Golden Springs Drive and Brea Canyon Road
Location
300 ft
Countermeasure Diagrams
250’Radius Inuence Area
Carpio Dr
Golden Springs Dr
S17PB
Install pedestrian
countdown signal heads
with Accessible
Pedestrian Signal (APS)
Countermeasure Diagrams
SI_7
Figure
Golden Springs Drive and Carpio Drive
Location
200 ft
250’Radius Inuence Area
Grand Ave
Summitbridge Dr
S02
Install Nearside
Supplemental Signal
S18PB
Convert Existing
Crosswalk to High
Visibility Crosswalk
SI_8
Figure
Grand Avenue and Summitridge Drive
Location
200 ft
Countermeasure Diagrams
250’Radius
Inuence Area
Pathfinder Rd
S02
Install Nearside
Supplemental Signal
S18PB
Convert Existing
Crosswalk to High
Visibility Crosswalk
Brea
Canyon
Rd
SI_9
Figure
Brea Canyon Road and Pathfinder Road
Location
Countermeasure Diagrams
200 ft
250’R
a
d
ui s In

u
e
nce
Area