HomeMy WebLinkAbout1995-09-11; Traffic Safety Commission; ; Establish a prima facie speed limitl I ' '
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'I . CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF: September 11, 1995 ITEM NO. 6A
LOCATION: Camino de los Coches between Rancho Santa Fe Road and
La Costa A venue
INITIATED BY: Dave Millikan, Recreation Supervisor II, Parks and Recreation Department
REQUESTED ACTION: Establish a prima facie speed limit
BACKGROUND:
Dave Millikan, Recreation Supervisor II at Stagecoach Park, has requested that a prima
facie speed limit be established and posted on Camino de los Coches. The request is
made due to concerns regarding speeding vehicles.
DATA:
Camino de los Coches is a secondary arterial street located east of Rancho Santa Fe Road
which connects to the easterly terminus of La Costa Avenue and is shown on EXHIBIT 1.
Camino de los Coches has a curvilinear alignment and provides the only access to
Stagecoach Park. The roadway has a design speed of 40 miles per hour. A high school
is currently under construction south of Camino de los Coches. Construction traffic to
and from the high school uses and can impact Camino de los Coches. This will continue
until the high school opens in September of 1996. There are no homes that front directly
onto Camino de los Coches.
Sections 22357 and 22358 of the California Vehicle Code authorizes local authorities to
establish a prima facie speed limit on the basis of the results of an Engineering and
Traffic Survey. The Engineering and Traffic Survey considers such factors as the number
of collisions that have occurred on the road segment, roadway features, traffic volumes,
pedestrian volumes, adjacent land uses, driveway locations, critical speed, conditions that
may not be readily apparent to the driver, horizontal and vertical alignment, stopping sight
distance and superelevation.
Staff completed an Engineering and Traffic Survey for Camino de los Coches
(survey attached). Based upon the results of the Engineering and Traffic Survey, a 40
mile per hour prima facie speed limit would be appropriate for this roadway.
RECOMMENDATION:
The Traffic Safety Coordinating Committee recommends that the prima facie speed limit
upon Camino de los Coches between Rancho Santa Fe Road and La Costa A venue be
established at 40 miles per hour.
NECESSARY CITY COUNCIL ACTION:
An ordinance will be required to be adopted by the City Council to establish the prima
facie speed limit as recommended.
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PROJECT NAME
LOCAT ION
PROPOSED
SPEED ZONE
MAP
NOT TO SCALE
STAGECOACH PARK
MAIN ENTRY /EXIT
FUTURE HIGH SCHOOL
MAIN ENTRY /EXIT
CAMINO DE LOS COCHES -PROPOSED 40 MPH SPEED ZONE
DRAWN BY: SCOTT EVANS, CARLSBAD ENGINEERING DEPT.
EXHIBIT
1
CITY OF CARLSBAD
ENGINEERING AND TRAFFIC SURVEY
STREET: Camino de los Coches DATE: _ ___._.8/ ___ 21 ..... / .... 95 ____ _
LIMITS:
A. Prevalllnq Speed Data:
Date of Speed Survey
Location of Speed Survey
85th Percentile
10 MPH Pace
Percent in Pace
Posted Speed Limit
8. Accident History:
(3/31 /93 to 4/30/95)
Direction: Eastbound/Westbound
8/17/95
At Stagecoach Park Main Entrance
42MPH
33 to43 MPH
78%
None
Speed-Related Accidents O
Total Accidents o
Acc./Million Veh. Miles N/A
C. Traffic Factors:
Average Daily Traffic
Traffic Controls
Pedestrian/Bicycle Traffic
Bicycle Lanes
On-Street Parking
Other
D:' RolidWay Factors:
Street Classification
Design Speed
Length of Segment
Roadway Width
Number of Lanes
Vertical Alignment
Horizontal Alignment
Sidewalks
Driveways
Street Lighting
2.200 -West of Stagecoach Park; 1,700 -East of Stagecoach Park
Traffic Signal at Rancho Santa Fe Road
Moderate
Bicycle Lane on Each Side
Parking Prohibited in Some Sections
Bus Route
Secondary Arterial
40 MPH
0.84 Mi.
64 Feet
Varies Between 1 to 2 Lanes Each Direction
Roadway Grades Vary from 1.0% to 7.0%
Curvilinear
Sidewalk on Each Side
2 Driveways on North Side
Street Lights on Each Side
E. Adfacent Land Uses: Community Park, Residential (Single-Family), Future High School Under Construction, Vacant Land
F. Remarks: Camino de los Coches provides the only access to Stagecoach Park. Motorists must negotiate a 90 degree curve at
La Costa Avenue. A number of special event concerts are held at Stagecoach Park throughout the year which impact this
roadway and require special traffic control to be implemented. A high school is currently under construction south of Camino
de los Coches. Construction traffic to and from the high school uses and can impact Camino de los Coches. This will continue
until the high school opens in the Fall of 1996.
G. Traffic Engineer's Recommendation (Explanation): This speed zone satisfies the conditions of Section 627 of the California
Vehicle Code and has been prepared and evaluated in accordance with the CALTRANS Traffic Manual with respect to design
and prevailing speeds, accident history, pedestrian activity, driveway spacing, stopping sight distance, and roadway and traffic
conditions. A speed limit posting of 40 MPH is found to be appropriate and justified.
N01E: Appropriate speed survey(s) is/are attached hereto and made a part hereof.
CITY OF CARLS_AD Sf ..:ED SURVEY
DATE: _8.___-_._/_7_-_9:_~_ TIME: 8.·ss to //,"30 /9, M, TOTAL v ~HICLES: _ _...../a....,~~--
WEATHER: ___ Go.........._ .... 0 ... 0 ___________ _ CRITICAL SPEED: __ ¼-=~=-_MPH
C4MINO /)£ LIJ.S CPcl/ES
L OCATION: @ 57?9(jECOtJCI-/ fAB/( /~/# l::A/T&,M/CE PACE SPEED: 33 to f 3 MPH
OBSERVER/RECORDER: ___ ~J'~Wi.;..;.....;;&-~-------CARS IN PACE: __ 7 __ 8 ___ %
Posted Speed Limit: Nt'NE MPH
EB w'B
Direction of Travel Direction of Travel
MPH fl ! r: II '7. i1 < ·~ fl MPH
65 65
64 164
63 63
62 62
61 61
60 60
59 59
58 58
57 , 57
56 1 56
55 55
54 54
53 153
52 52
51 51
50 50
49 iX I 2.. I I JI)/) 49
48 48
47 y 2 I I V¥ 47
46 46
45 )I X .::-' I 2 ~ ' 'f 45
44,) .,J .c' ,;J ~ J 44
43 JI X ~ X X X ,.,,., , 7 V ;J j 43
42) X I.A J -7 ) I ....::J X I(' 42
41 .II X X ~ f1 ?17 X I( ~ 41
40 .I' 2 ~ .... '2 j ,, K X _, IC 40
39 ~~ 7 I 1, ., ' r I 3 I(' 39
38 A .>c X ~ Ii I ~ , l J II .., X IX ,x X IX .)'-38
37 IY' .> X 'I > j() 't) ,,, /. 7 b X I/( X .) 37
36 l) I> X X IX ~ :, ,/} ~ ~ I X / 36
35 LI I) I) 3 I
·--
2 ' -. I( I) X 35
341) ) ,;. • ' 2..3 ~ • /C < /C 34
33 I) I_...I .A , • , 17 /() ._!) X X I< ir"'A 33 -32 t.;IC .J -_, 'f I/ .2 ,, X 32
31 ~ IX .,;;> 'f • I ~) </ E I(' X 31
30 IX .A ~ 'I ~ ~ ✓ 30
29 29
28 28
27 27
26 26
25 25
24 24
23 23
22 22
21 21