Transcript Document

Traffic Engineering Survey
City of Rancho Palos Verdes
LIMITS: CREST RD – SEACREST DR
STREET: CRENSHAW BLVD
ENGINEER: JACK RYDELL
DATE: 8-16-07
SIGNATURE:
MAP SYMBOLS
S
SCHOOL
TRAFFIC SIGNAL
R1
R-1 STOP SIGN
40
R-2 SPEED LIMIT
P
PARK
G
CROSSING GUARD
S
SCHOOL CROSSWALK
S
P
Del Cerro
Park
CROSSWALK
Seacrest Dr
DISTANCE
0.4 miles
ALIGNMENT
Rolling with horizontal curve.
PARKING RESTRICTIONS
Parking allowed on both sides.
STREET WIDTH
30’ – 52’
NO. OF LANES AND MEDIAN
One lane in each direction. Raised center median b/t Crest Rd and Valley View Rd, changing to skip yellow centerline.
IMPROVEMENTS (SW, C & G)
Concrete or asphalt SW on both sides. Concrete or AC C&G on both sides
FRONTING DEVELOPMENT
W/S is backup residential, view area and a park. E/S is backup residential, undeveloped, and a church/school at Crest Dr.
AVERAGE DAILY TRAFFIC
1,806 (7/25-26/07)
SPEED CHECK (DATE/LOC)
7/25-26/07 – s/o Valley View Rd
AVERAGE SPEED: 39 MPH
2-YEAR ACCIDENT DATA THRU 4-07
CRITICAL SPEED: 45 MPH
TOTAL MIDBLOCK ACC: 0
NO. W/SPEEDING: 0
10 MILE PACE: 34-43 MPH
PREDOMINATE:
n/a
HBD, DRUNK, H&R: 0
ACCIDENT RATE: 0.00 ACCIDENTS PER MILLION VEHICLE MILES
DISTRICT 7 AVERAGE: 1.98 ACCIDENTS PER MILLION VEHICLE MILES
EXISTING SPEED ZONE – 35 MPH
PROPOSED SPEED ZONE – 40 MPH
85th
COMMENTS
The
percentile speed suggests a speed zone of 45 mph would be appropriate. However this roadway is used by bicyclists and pedestrians accessing Del Cerro Park and nearby
hiking trails, creating the potential for significant conflict with vehicles. Considering this factor and CVC Section 627, which specifies that pedestrian and bicyclist safety be
considered in an Engineering and Traffic Survey, it is appropriate to apply a 5 mph reduction from the 85 th percentile speed in order to establish a reasonable and safe speed limit.