Transcript Document

Traffic Engineering Survey
City of Rancho Palos Verdes
LIMITS: HIGHRIDGE RD/GRAYSLAKE RD – INDIAN PEAK RD
STREET: HAWTHORNE BLVD
DATE: 9-14-07
ENGINEER: JACK RYDELL
SIGNATURE:
MAP SYMBOLS
S
Note: Hawthorne Blvd is
considered a north/south
roadway for the purposes of
this study
SCHOOL
TRAFFIC SIGNAL
R1
R-1 STOP SIGN
40
R-2 SPEED LIMIT
P
PARK
G
CROSSING GUARD
S
SCHOOL CROSSWALK
N
CROSSWALK
n.t.s.
(posted in
median)
DISTANCE
0.4 miles
ALIGNMENT
Rolling with horizontal curves.
PARKING RESTRICTIONS
No Stopping Any Time on both sides.
STREET WIDTH
30’ – 32’ per barrel
NO. OF LANES AND MEDIAN
Two lanes in each direction separated by a raised median. Bike route on both sides.
IMPROVEMENTS (SW, C & G)
Concrete curb and gutter on both sides. Continuous sidewalk on the e/s; sidewalk on the w/s from Shorewood Rd northerly.
FRONTING DEVELOPMENT
Backup residential. Commercial at limits. Hawthorne Frontage Road on the w/s b/t Shorewood Rd and Grayslake Rd.
AVERAGE DAILY TRAFFIC
18,028 (5/06)
SPEED CHECK (DATE/LOC)
8-1-07 - at Woodbrook Rd.
AVERAGE SPEED: 38 MPH
2-YEAR ACCIDENT DATA THRU 4-07
CRITICAL SPEED: 43 MPH
TOTAL MIDBLOCK ACC: 9
NO. W/SPEEDING: 6
10 MILE PACE: 34 - 43 MPH
PREDOMINATE:
Rear end
HBD, DRUNK, H&R: 2
ACCIDENT RATE: 1.71 ACCIDENTS PER MILLION VEHICLE MILES
DISTRICT 7 AVERAGE: 1.76 ACCIDENTS PER MILLION VEHICLE MILES
EXISTING SPEED ZONE – 40 MPH
PROPOSED SPEED ZONE – 40 MPH
85th
COMMENTS
The
percentile speed suggests a speed zone of 45 mph would be appropriate. However 6 of the 9 reported accidents involved vehicles traveling at an unsafe speed. Also, the
northern portion of the segment has significant commercial development, creating the potential for significant pedestrian and conflict with vehicles. Considering these factors and
CVC Section 627, it is appropriate to apply a 5 mph reduction from the 85th percentile speed in order to establish a reasonable and safe speed limit.