HomeMy WebLinkAbout1988-06-06; Traffic Safety Commission; ; Establish a prima facie speed limit on Tamarack Avenue easterly of El Camino Real and continuing northerly of Hope Elementary School to Harwich DriveCITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
COMMISSION REPORT OF: June 6, 1988 ITEM NO. 6A
LOCATION: Tamarack Avenue -Easterly of El Camino Real
INITIATED BY: City of Carlsbad Police Department
REQUESTED ACTION: Establish a prima facie speed limit on Tamarack
Avenue easterly of El Camino Real and
continuing northerly of Hope Elementary School
to Harwich Drive.
BACKGROUND:
DATA:
Tamarack Avenue is designated as a Secondary Arterial on the
Circulation Element of the General Plan between El Camino Real
and Elm Avenue. Northerly of Elm Avenue the road is not shown
as a Circulation Element roadway. At this time no prima facie
speed limit has been established on the segment of Tamarack
Avenue easterly of El Camino Real.
Tamarack Avenue follows a curvilinear alignment and has a curb
to curb width of 64 feet between El Camino Real and Elm
Avenue. North of Elm Avenue the road is 40 feet wide. Grades
vary between 0.70% and 12.0% with good sight distance along
the entire roadway segment. No unusual roadway
characteristics or features are noted. An elementary school
is located on Tamarack Avenue at Wilshire Street.
In 1986 and 1987, four (4) accidents occurred on Tamarack
Avenue easterly of El Camino Real all in the vicinity of
Pontiac Drive. Three (3) of the accidents were attributed to
excessive speed and the other was due to inattention
improper turn.
Two-way 24 hour Average Daily Traffic (A.D.T.) volumes on
Tamarack Avenue are indicated on Table 1.
TRAFFIC SAFETY COMMISSION
COMMISSION REPORT OF: June 6, 1988
(Continued)
ITEM NO. 6A
TABLE 1 TAMARACK AVENUE A.D.T.
Location
Btwn. ECR and Pontiac
Btwn. Pontiac and Kirkwall
At Elm Avenue
At Wilshire Street
Volumes
9,003
4,316
2,993
2,208
Date Obtained
October 1987
April 1988
September 1987
October 1987
A speed
Tamarack
Table 2.
survey was conducted at three
Avenue (results attached) and
(3) locations
is summarized
TABLE 2 SPEED SURVEY ON TAMARACK AVENUE
Location
Btwn. ECR and Pontiac
At Edinburgh Drive
Critical Speed (M.P.H.)
Btwn. Elm Avenue and Wilshire Street
52
48
36
on
on
Based upon an analysis of the traffic data and speed surveys,
staff recommends that two (2) speed zones be established on
Tamarack Avenue. The first speed zone would extend from El
Camino Real to Elm Avenue and would be 1.2 miles in length.
The second would extend from Elm Avenue northerly and easterly
to Harwich Drive, a distance of 1.0 miles.
RECOMMENDATION:
On Tamarack Avenue, the Traffic Safety Coordinating committee
recommends that a 45 mile per hour prima facie speed limit be
established between El Camino Real and Elm Avenue and that a
35 mile per hour prima facie speed limit be established from
Elm Avenue to Harwich Drive.
NECESSARY CITY COUNCIL ACTION:
The City Council must adopt an ordinance for each speed zone
to establish the prima facie speed limits as recommended for
Tamarack Avenue.
• OCATION MA
PROPOSED 45 M.P.H. SPEED ZONE
EL CAMINO REAL
VICINITY MAP
PROJECT NAME: TAMARACK AVENUE -EXHIBIT
PROPOSED 45 M.P.H. SPEED LIMIT 1. from El Camino Real to Elm Avenue
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PROPOSED 35 M.P.H. SPEED ZONE
VICINITY MAP
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ELM
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AVE.
PROJECT NAME: TAMARACK AVENUE -
PROPOSED 35 M.P.H. SPEED LIMIT
from Elm Avenue to Harwich Drive
END
STREET
IMPROVEMENTS
EXHIBIT
2.
l
MEMORANDUM
TO: Mr , Robert Johnson DATE : 9-21-87
FROM: Sergeant Shipley
SUBJECT: Speed on Tamarack Ave. east of El Camino Real
The traffic division frequently receives complaints regarding speeding
vehicles on tamarack Ave. east of El Camino Real. This section of high-
way is not posted and consequently has a speed limit of 55 m.p.h.
It is request that speed surveys be conducted at Pontiac, Edinburgh and
Wilshire (Hope Elementary School). If the surveys show that a lower
speed limit is justified, it is requested that the highway be posted for
the lower limit.
---m 7: .s ep4 .
M. J. Shipley,-1'ergeant
TRAFFIC DIVISION
SEP 221987
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MEMORANDUM
TO : Rohert Johnson DATE: 3-18-88
FROM: Sergeant Ship 1 ey
SUBJECT: Speed limit on Tamarack Avenue north of Elm Avnue.
Tamarack Avenue north of Elm Avenue currently is not posted with a speed
limit except the area directly in infront of Hope School when children
are present. Since the street does not meet the requirements for business
or residential districts the speed limit is 55 M.P.H.
It is requested that a safe speed be determined for this road and that it
be posted accordingly.
M. J. Shipley, Sergeant
Traffic Division
•• -. ~ ..... _
SPEED SURVEY
~ ~~
)ATE: % • ~. 9g TUIE:q:uoto IQ :c,c,
rEATIIER: G,-... -s"' .... "
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IDS ERV ER/ RECORDER=----~-~--'---=~___.!, ___ _
II 'l, z. II
CllY .OF
CARLSBAD
TOTAL VEIIJCLES: /tf:10
CRITICAL SPEED: 2 -z_ IIPII .... ·~ PACE SPEED: 4'f'!V to 5' ~ MPII
S CAns IN PACE: .L.& ~~~--. 23 i
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% % t11e 'l, II
-SPEED SURVEY ·
AM AJtA,.
\JIIY Ur
CARLSBAD
....
DATE: ,Z.. • ."'c • -TUIE:.b:~ to// :,;0
wEAT11En: cCls e: • -Swritwy
LOCATION: -r::; P4Mf,. p1,usw~'-'.
TOTAL VEIIICLES: /00
CRITICAL SPEED: ~& IIPII
"PACE SPEED: 942 to SO IIPJI
. . ; p. '
'.lDSERVER/ RECORDER: ~ .l ., S.&..c .-.err t-o~..,.
~•""1-"
CARS IN PACE: ~ t$ 'Ii
... II '.L "i:. II % '.L tiJe '1, II ~-
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11
SPEED SURVEY
CllY .OF
CARLSBAD
• ,.,, 19'11\
DATE: ,z.. '1/-. M THIE: t·iS to 3 :i,o -a-~•--TOTAL VEHICLES: 10a
WEATIIER: U,c-s.-.,,y • • CRITICAL SPEED: -,,. IIPJI
LOCATION: :r;.,,. cc ~ WL~1~e ~~~v .PACE SPEED: .,_Q_to 1/-Q IIPII
OBSERVER/RECORDER: tit-'~ .s.L. :..No-( Q..cao CA0S IN PACE: . .., "
a&S--~1-\,
II '1, "£. II 1, 'l, tlJe '1, # sa
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