HomeMy WebLinkAbout2010-06-07; Traffic Safety Commission; ; Establish a prima facie speed limit upon Poinsettia Lane from El Camino Real to Melrose Driver
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF: June 7, 2010 ITEMNO.6A
LOCATION:
INITIATED BY:
Poinsettia Lane, El Camino Real to Melrose Drive
City Engineer
REQUESTED ACTION: Establish a prima facie speed limit upon Poinsettia Lane from El
Camino Real to Melrose Drive.
BACKGROUND:
Poinsettia Lane is a four-lane, divided roadway constructed in 2005 that connects El
Camino Real to Melrose Drive (see Exhibit I). Poinsettia Lane serves the residential
developments of Bressi Ranch and the Villages of La Costa. The road also provides
access to the existing Carrillo Ranch housing development. The future Alga Norte
Community Park is being rough graded and is located on the northwest comer of the
Poinsettia Lane/ Alicante Road intersection.
SETTING SPEED LIMITS:
Effective July I, 2009, Caltrans Division Chief Robert Copp signed the Policy Directive
to establish the procedure for setting speed limits in California. The changes for setting
speed limits are included in the California Manual on Uniform Traffic Control Devices
(CA MUTCD) pursuant to authority granted to Caltrans in Section 21400 and 21401 of
the California Vehicle Code (CVC).
Caltrans recognizes that the setting of speed limits can be controversial. However, if
speed limits are established arbitrarily low, the majority of drivers would be violators of
the speed limit, public confidence would be low, and roadway users (drivers) would not
respect the traffic control device (speed limit sign).
The referenced directive clarifies procedures for setting speed limits. Caltrans has
incorporated two new standards into the CA MUTCD to help set speed limits in
California that are uniform, rational, enforceable by the police, and are supported by the
judicial system. Requirements of the new standards as established by Caltrans are:
• The speed limit shall be established at the nearest 5 mph increment of the
85th percentile.
• If the 5 mph reduction is applied, the Engineering and Traffic Survey shall
document in writing the conditions and justification for the reduced speed
limit and be approved by a registered Civil or Traffic Engineer.
The 85th percentile speed, often referred to as the critical speed, is the speed which 85%
of the drivers are traveling at or below.
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
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June 7, 2010 ITEM NO. 6A
Optimal mobility is enhanced and overall traffic flow improved when drivers are
operating their vehicles at a speed that is reasonable, comfortable, convenient, and safe
under the existing conditions. It is generally acknowledged that the control of speed can
be a significant factor in influencing and improving roadway safety by reducing the
number of collisions. In fact, the premise of CVC section 22350, Basic Speed Law, is
that no person shall drive upon a road at a speed greater than is reasonable and prudent
taking into account weather, visibility, and traffic on the road and in no event at a speed
that endangers the safety of others. Unfortunately, good judgment is not used by all
operators of a motor vehicle.
Driver behavior is an extension of social attitudes and most drivers operate their vehicles
in a reasonable manner. This is demonstrated by their good driving records even though
their capabilities and limitations of the vehicle operators vary greatly. Therefore, traffic
Jaws established on the basis of the behavior of the reasonable and prudent motorist are
found to be the most successful. As a result, speed limits that are considered credible and
enforceable will help enhance traffic safety and the operating efficiency on the roadway
and achieve driver compliance.
Many factors influence the speed at which drivers operate their vehicle. Human factors
include age, gender, state of mind (attitude), attentiveness, and concerns about law
enforcement or being involved in a collision. There are situational factors that can
influence speed such as weather, condition of the vehicle, roadway conditions, speed
limits or being in a hurry or impaired.
Roads in Carlsbad are designed in accordance with engineering standards to satisfy the
goals of having a safe roadway, provide mobility, offer mode choices, and to enhance
efficient traffic flow. One way that these goals are achieved is by establishing proper and
reasonable speed limits that can be enforced. Speed limits that are reasonable can help to
achieve voluntary compliance by the majority of drivers without need for the presence of
a police officer. Laws and/or the establishment of speed zones that arbitrarily restrict
travel by the majority of motorists can lead to wholesale violations of the posted speed
limit. For a speed limit to be considered effective, drivers must believe that the posted
speed limit is safe, properly established, and legally enforceable.
In the City of Carlsbad, the predominant practice for managing speed is by legally
establishing a prima facie speed limit according to Caltrans criteria and then posting the
speed limit upon the road with regulatory signs. A prima facie speed limit recognizes that
conditions change throughout the day and there is no one safe speed for all the conditions
that may be present upon the roadway. Police enforcement is used to target the most
egregious violators of the speed limit. A fundamental tenet is that laws are enacted to
protect the majority of the public by regulating the unsafe or unreasonable actions of the
few. When law enforcement officers and the courts have confidence that speed limits
-
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF:
( continued)
June 7, 2010 ITEMNO.6A
have been set on a reasonable basis, the enforcement efforts of the Carlsbad Police
Department are more effective.
Nationally recognized vetted practices and guidance per standards and procedures in the
Federal Highway Administration's national Manual on Uniform Traffic Control Devices
2003 Edition are considered when setting speed limits. In California, this manual is titled
the California Manual on Uniform Traffic Control Devices and the latest revision thereof
is used to set speed limits in California. The most common method of establishing speed
limits incorporates traffic engineering principles and other factors, such as using the
results of a speed survey, into the Engineering and Traffic Survey. Prima facie speed
limits are established by law when the City Council adopts an ordinance and the speed
limit is posted on the roadway to indicate the maximum reasonable speed for a driver to
operate a vehicle under ideal conditions in off-peak free flowing conditions. Among
many factors, the most persuasive arguments to consider when setting a realistic, or
rational, speed limit are:
I. Critical speed (85th percentile speed)
2. Collision history
3. Conditions that may not be readily apparent to the driver
4. Type and amount ofroadside development
5. Design speed of the roadway
6. Horizontal and vertical alignment of the roadway
7. Pedestrians and bicyclists
The premise implied in speed zoning is that the majority of drivers are operating their
vehicles at or near the 85 th percentile speed. Drivers that operate their vehicle at speeds
higher than the 85th percentile speed should be the focus of the police as excessive speed
is often a factor in a vehicle collision.
An important speed zoning concept is that the disparity in speed between vehicles on the
road is reduced when prima facie speed limits are established at or near the 85 th percentile
speed and, as a result, safety is enhanced. In addition, a speed limit that is established
based upon the 85th percentile speed will increase driver respect for the speed limit sign.
Only those regulatory or warning signs that have the respect of the roadway user will
have a positive effect to control driver behavior traffic.
A comprehensive review of the collision history on a roadway also is an important
element in the process to establish a speed limit. In the collision analysis, factors such as
collision frequency, type, severity, road conditions, road geometry, lighting conditions,
and spatial distribution of the collisions are all considered. The review of collisions will
also reveal if there is a high incidence of speed-related collisions on the road at specific
r
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
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COMMISSION MEETING OF:
( continued)
June 7, 2010 ITEM NO. 6A
locations. A number of collisions above the expected or normal threshold based upon
Caltrans collision rates may be an indicator of a potential for reducing collisions.
However, absent a significant collision history attributed to speed, it may be concluded
that drivers are operating their vehicle in a reasonable and prudent manner at the speed
they chose to drive. From national statistics and studies, it is known that high mileage
drivers, young drivers, those driving new cars, and those driving for business purposes
tend to drive faster than average and/or exceed the speed limit.
Traffic engineers recognize that the installation of a speed limit sign will not
automatically decrease accident rates nor increase roadway safety. Speed limits should
not be lowered for conditions that are readily apparent to the driver and the speed limit
signs are not used as intersection, curve or hazard warning devices. For the unusual
conditions or conditions not readily apparent to motor vehicle operators, appropriate
warning signs are installed.
Design factors, including the geometric elements of the road, sight distance, or other
factors such as adjacent land uses, parking, or pedestrian activity, may have a significant
impact on the free flowing speed chosen by drivers. This driver chosen speed, in turn, is
considered when establishing a prima facie speed limit.
A number of factors may be considered when establishing a prima facie speed limit.
The CA MUTCD lists such factors as:
A. Road characteristics, shoulder condition, grade, alignment, and stopping sight
distance;
B. The pace speed;
C. Roadside development and activity; and
D. Reported crash experience for at least a 12-month period.
Other factors are included, as appropriate, in the Engineering and Traffic Survey that
becomes the basis for establishing the prima facie speed limit. Among the requirements
to be considered are residential density and pedestrian and bicycle safety. Other factors
include superelevations, profile conditions, intersection spacing and offsets, commercial
driveways, and pedestrians in the roadway where sidewalks do not exist.
Basic speed law as stipulated in the California Vehicle Code requires drivers to operate
their vehicle at a speed that takes into account all roadway factors, environmental
elements, adjacent land uses, and other traffic on the road. These are, in general, all
readily apparent factors to the driver. Warning signs placed on the roadway can alert
drivers to the presence of an unseen or unanticipated condition. As a result, drivers can
operate their vehicle in a reasonable and prudent manner by adjusting speed for the
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF:
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June 7, 2010 ITEMNO.6A
condition that may be encountered and at which they feel safe regardless of the posted
speed limit.
In summary, through the use of engineering, educational, and enforcement techniques,
the management of vehicle speed is conducted. Voluntary public compliance with the
posted speed limit is the goal when determining a realistic prima facie speed limit to post
on a roadway. The realistic speed limit takes into consideration the normally competent
and careful actions of a reasonable driver and provides for the regulation of unreasonable
behavior by a few individuals. A posted speed limit should be readily accepted by drivers,
be fair and reasonable, be related to risk on the roadway, be determined by the majority of
drivers, and one that has a factual foundation. Posted speed limits reflect a balance of the
various factors specific to the roadway. As a result, roadway safety can be improved and
community concerns about traffic speed are appropriately and legally addressed.
BASIS OF ACTION:
The proposed speed limit for the road segment discussed in this report is regulated by
section 22357(a) of the California Vehicle Code: "Whenever a local authority determines
upon the basis of an engineering and traffic survey that a speed greater than 25 miles per
hour would facilitate the orderly movement of vehicular traffic and would be reasonable
and safe upon any street other than a state highway otherwise subject to a prima facie
limit of 25 miles per hour, the local authority may by ordinance determine and declare a
prima facie speed limit of 30, 35, 40, 45, 50, 55, or 60 miles per hour or a maximum
speed limit of 65 miles per hour, whichever is found most appropriate to facilitate the
orderly movement of traffic and is reasonable and safe. The declared prima facie or
maximum speed limit shall be effective when appropriate signs giving notice thereof are
erected upon the street and shall not thereafter be revised except upon the basis of an
engineering and traffic survey. This section does not apply to any 25 mile per hour prima
facie limit which is applicable when passing a school building or the grounds thereof or
when passing a senior center or other facility primarily used by senior citizens."
DATA:
Poinsettia Lane is an arterial roadway located in the Villages of La Costa development.
The portion of the road from El Camino Real to Alicante Road opened in April 2005 with
the entire segment from El Camino Real to Melrose Drive opened to traffic in June 2005.
The subject portion of Poinsettia Lane is 2.13 miles in length. Two traffic lanes in each
direction are separated by a raised, landscape median. The road is constructed to meet
City of Carlsbad design standards and includes bicycle lanes, sidewalks, and street lights.
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF:
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June 7, 2010 ITEMNO.6A
Poinsettia Lane is classified on the Circulation Element of the General Plan as a major
arterial. It has a daily traffic volume design capacity range from 20,000 to 40,000
vehicles, although existing daily traffic volumes are considerably less. The road follows a
curvilinear alignment and has centerline horizontal geometrics as indicated on Exhibit 2.
Each horizontal curve meets or exceeds the minimum radius of 1,400 feet in accordance
with engineering design standards for a major arterial roadway. Centerline vertical grades
on Poinsettia Lane range between 1.0% and 7.0%.
Two elementary schools have been constructed on Poinsettia Lane with Poinsettia Lane
being located along the frontages of both schools. A fence separates both school grounds
from Poinsettia Lane traffic lanes. Poinsettia Elementary School is situated on the
northerly side of Poinsettia Lane between Quartz Way and Mica Road. Carrillo
Elementary School is located on the southwest comer of the Poinsettia Lane/Melrose
Drive intersection.
The school zone speed limit of 25 miles per hour when children are present is applicable
on Poinsettia Lane for both Poinsettia Elementary School and Carrillo Elementary
School. School zone signing on Poinsettia Lane is supplemented with flashing beacons.
A traffic count was obtained at two locations on Poinsettia Lane on March 23, 2010 to
determine the two-way, 24-hour average daily traffic volume. The recent count data is
indicated on Table A.
TABLEA
24-HOUR TRAFFIC VOLUMES
POINSETTIA LANE
West of Alicante Road
East of El Fuerte Street
Staff conducted three speed surveys on Poinsettia Lane, one on April 29, 2010 and two
on May 11, 2010 to determine the critical speed of vehicles. As stated previously, the
critical speed, commonly called the 85 th percentile, is the speed at which 85 percent of the
vehicles are traveling at or below. A sample of 100 vehicles was measured to calculate
the critical speed. The critical speed is an important factor used to help determine the
appropriate prima facie speed to post upon a roadway.
The 85th percentile speed has been determined throughout the United States to generally
conform to a safe and reasonable speed limit. The California Manual on Uniform Traffic
Control Devices (MUTCD) provides guidance when a speed limit is to be posted.
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF:
( continued)
June 7, 2010 ITEMNO.6A
California Vehicle Code section 627 defines the term "Engineering and Traffic Survey"
and lists its requirements, as follows:
627. (a) "Engineering and traffic survey," as used in this code, means a survey of
highway and traffic conditions in accordance with methods determined by the
Department of Transportation for use by state and local authorities.
(b) An engineering and traffic survey shall include, among other requirements
deemed necessary by the department, consideration of all of the following:
(1) Prevailing speeds as determined by traffic engineering measurements.
(2) Accident reports.
(3) Highway, traffic, and roadside conditions not readily apparent to the driver.
( c) When conducting an engineering and traffic survey, local authorities, in
addition to the factors set forth in paragraphs (1) to (3), inclusive, of subdivision (b) may
consider all of the following:
(1) Residential density, if any of the following conditions exist on the
particular portion of highway and the property contiguous thereto, other than a business
district;
(A) Upon one side of the highway, within a distance of a quarter of a mile, the
contiguous property fronting thereon is occupied by 13 or more separate dwelling houses
or business structures.
(B) Upon both sides of the highway, collectively, within a distance of a quarter of a
mile, the contiguous property fronting thereon is occupied by 16 or more separate
dwelling houses or business structures.
(c) The portion of highway is longer than one-quarter of a mile but has the ratio of
separate dwelling houses or business structures to the length of the highway described in
either subparagraph (A) or (B).
(2) Pedestrian and bicyclist safety.
TABLEB
SPEED SURVEY DAT A FOR POINSETTIA LANE
4/29/10 400 feet w/o Quartz Way EB/WB 51 42-52 76
5/11/10 400 feet e/o El Fuerte Street EB/WB 51 43-53 80
5/11/10 600 feet w/o Melrose Drive EB/WB 50 40-50 74
The pace speed is the 10 mile per hour range of speeds that contain the highest number of
observed vehicles. Generally, the critical speed is in the upper range of the pace speed.
Sections 22357 and 22358 of the California Vehicle Code authorize 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, adjacent land
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF:
( continued)
June 7, 2010 ITEMNO.6A
uses, driveway locations, traffic volumes, pedestrian volumes, critical speed, horizontal
and vertical alignment, stopping sight distance, and conditions that may not be readily
apparent to the driver.
Staff has reviewed the Police Department collision reports for the two year period from
March 1, 2008 through February 28, 2010. There have been four reported collisions on
the subject segment, two of which were speed related.
Poinsettia Lane intersects El Camino Real as a four-leg intersection controlled with a
traffic signal. At the intersection of Poinsettia Lane with Melrose Drive, right-of-way
assignment also is controlled with a traffic signal. Traffic signals are also located on
Poinsettia Lane at:
• Estrella de Mar Road
• Alicante Road
• Quartz Way
• MicaRoad
• El Fuerte Street
• Carrillo Elementary School driveway at Paseo Escuela.
RECOMMENDATION:
Based upon the results of the Engineering and Traffic Survey, the Traffic Safety
Coordinating Committee recommends establishing a 50 mile per hour prima facie speed
limit upon Poinsettia Lane from El Camino Real to Melrose Drive.
NECESSARY CITY COUNCIL ACTION:
An ordinance will be required to be adopted by the City Council to establish the 50 mile
per hour prima facie speed limit upon Poinsettia Lane, as recommended.
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LOCATION MAP
LEGEND:
@ TRAFFIC SIGNAL
PROPOSED
SPEED ZONE
PROJECT NAME
STUDY AREA
NOT TO SCALE
POINSETTIA LANE
PROPOSED SPEED ZONE
I
DRAKN BY: SCOTT EVANS, CARLSBAD UTIU11ES DEPT. 5/17/10 C:\1RANSPORTATION DEPARTMENT\1RAmC\SP£ED ZONES\SPfED ZONE-POINSETnA LN-J.DWG
EXHIBIT
1
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LOCATION MAP
MICA RD.---,---159.32'
1-----1157.28'
QUARTZ WY..:_::. :-=-:~~Wajc:=====~~----R = 1500· 51 •95' 32.54'
364.63'
PROJECT NAM[
-=---------278.74' ------~ ---'i ~1§_oo, ,----352.39' -
395.59' _ 190.56' ------------------R = 1404' --ALICANiE RD./~-----------
106.96' / =-=--------
--~1500' = -------------22.65' 242.99'
------639.45'
--...,;:::---------{
----R_=-11!]0· ---331.92'
-----246.79'
649.36' ----1
EL CAMINO REAL
POINSETTIA LANE
HORIZONTAL ALIGNMENT
PAGE 1 OF 2
EXHIBIT
2
C
LOCATION MAP
369.70'
<:)~· / o<o~ / "----·240.48'
r,\,~ 34.67'. ,.,, ,.,, ,.,,
~v ,.,,
/
/
----775.91'
,.,, ,.,, PASEO / ESCUELA CARRILLO ELEMENTARY / R = 1400' ~~---_cc SCHOOL DRIVEWAY
"'---------------200.17'
332.15' -----·937.26'
--I?~ 1 EL FUERTE ST. --4..Qo• ---:;0=~ -
19.1'~-----~:.39'
100.34'-------R = 1400' -----=------
MICA RD. ------<.)-----159.32'
•-----1157.28'
---c=c=o.----51.95' QUARTZ WY,_ --R = 1500, PAGE 2 OF 2
PROJECT NAME POINSETTIA LANE
HORIZONTAL ALIGNMENT
EXHIBIT
2
CITY OF CARLSBAD
ENGINEERING AND TRAFFIC SURVEY
STREET: Poinsettia Lane
LIMITS: El Camino Real to Melrose Drive
FACTORS
A. Prevailing Speed Data: Direction: Direction: Direction:
Eastbound/Westbound Eastbound/Westbound Eastbound/Westbound
Date of Speed Survey 4/29/10 5/11/10 5/11/10
Location of Speed Survey 400" w/o Quartz Way 900" e/o El Fuerte Street 600" w/o Melrose Drive
85th Percentile 51 MPH 51 MPH 50 MPH
10 MPH Pace 42 to 52 MPH 43 to 53 MPH 40 to 50 MPH
Percent in Pace 76% 80% 74%
Posted Soeed Limit No Posted Soeed Limit No Posted Soeed Limit No Posted Speed Limit
B. Midblock Accident Histo!Y:
(3/01/08 through 2/28/10)
Speed-Related Accidents 2
Total Accidents 4
Accidents/Million Vehicle Miles (MVM) 0.36
California Statewide Accidents/MVM 1.71 (2007 rate for 4 or more divided lanes)
C. Traffic Factors:
Average Daily Traffic 8,273 -West of Alicante Street (3/23/10); 5,851 -East of El Fuerte Street (3/23/10)
Traffic Controls Eight Signalized Intersections
Pedestrian/Bicycle Traffic Moderate near Carrillo Elementary School and Poinsettia Elementary School
Bicycle Lanes Bicycle Lane on Each Side
On-Street Parking Parking Prohibited on Each Side
Other Bicycle Route per Circulation Element of the General Plan
D. Roadway Factors:
Street Classification Major Arterial
Length of Segment 2.13 Mi.
Roadway Width 82 Feet (Curb-to-Curb)
Number of Traffic Lanes Two Lanes Each Direction
Vertical Alignment Roadway Grades Vary between 1.00% and 7.00%
Horizontal Alignment Generally straight with several curve segments
Sidewalks Sidewalks on each side except 1.3 mile of north side which has a pedestrian trail
Driveways Three driveways
Street Liahtina Street Liahts on Each Side
E. Special Conditions: Travel lanes are separated by a landscaped, raised median. Flashing beacons and standard warning signs
indicating SCHOOL -SPEED LIMIT 25 -WHEN CHILDREN ARE PRESENT are posted near Poinsettia Elementary School and
Carrillo Elementary School to alert motorists approaching from each direction. The two eastbound traffic lanes are re-configured to
one through lane and one right-turn only lane approaching Melrose Drive.
F. Adjacent Land Uses: Single-Family and Multi-Family Residential, Two Elementary Schools, Golf Course, Open Space, Pump
Station, Pedestrian Trails, Future Community Park.
G. Remarks/Conditions Not Readily Aimarent: Police motorcycle officers utilize depressions in the median at mid-block locations
for u-turns.
H. 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 Operations Policy Directive 09-04
effective July 1, 2009 and the California Manual on Uniform Traffic Control Devices with respect to design and prevailing speeds,
accident records, pedestrian and bicyclist safety, intersection and driveway spacing, and roadside and traffic conditions not
readily a□□arent to the driver. A soeed limit oostino of 50 MPH is found to be a□□ropriate and justified.
I. Approvals:
~
ecertification of existinQ speed zone per Sections 22357, 22358 and 40802 of the California Vehicle Code.
Establishment of new speed zone.
~I _,_ -J 'i/13)/0 Approved ~, , \ • l-~ O'\A. fr.
City Engineer \ l Date
CARCE 28515 ReQis ration expires 3/31 /12
NOTE: Appropriate speed survey(s) Is /are attached hereto and made a part hereof.
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DATE 4/29/10 TIME: 9:10 AM TO
CITY OF CARLSBAD
SPEED SURVEY
9:50AM TOTAL VEHICLES:
WEATHER: Clear -"'-=-------------CRITICAL SPEED:
LOCATION: Poinsettia Lane-400' w/o Quartz Way VEHICLES IN PACE:
OBSERVER/RECORDER: J. Gale ..:._..c..c..cc.... _____ _ PACE SPEED(S):
NONE
POSTED SPEED LIMIT
WESTBOUND
DIRECTION OF TRAVEL
MPH # % :E# % %tile 0/4 # ' 65
64
63
62
61
60
59
58
57 -v
56
55 X
54 X X
53 X X X
52 X X X
51 X X X X
50 X X X
49 X X X X X
48 X X X X X X
47 X X X
46 X X X X X
45 X X X X
44 X X X X
43 X X X X
42 X
41 X
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1 2 1 1 100
2 2 99 4 2
1 2 2 2 97 2 1
2 4 2 2 95
3 6 5 5 93 4 2
3 6 3 3 88
4 8 7 7 85 6 3
3 6 8 8 78 10 5
5 10 11 11 70 12 6
6 12 11 11 59 10 5
3 6 7 7 48 8 4
5 10 7 7 41 4 2
4 8 8 8 34 8 4
4 8 7 7 26 6 3
4 8 5 5 19 2 1
1 2 5 5 14 8 4
1 2 2 2 9 2 1
1 1 7 2 1
3 3 6 6 3
1 1 3 2 1
2 2 2 4 2
Transportation Department
Traffic Division
100
____ __;5~1:__ ____ MPH
76 % _____ .c...:;. ____ _
42 TO 52 __ __:;:;__ MPH
EASTBOUND
DIRECTION OF TRAVEL
MPH
65
64
63
62
61
60
59
58
57 y X 56
X 55
54
X X 53
52
X X X 51
X X X X X 50
X X X X X X 49
X X X X X 48
X X X X 47
X X 46
X X X X 45
X X X 44
X 43
X X X X 42
X 41
X 40
X X X 39
X 38
X X 37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
DATE: 5/11/10 TIME 9:05 AM
WEATHER: Cloudy & Cool
CITY OF CARLSBAD
SPEED SURVEY
,.,..,,
TO 9:40 AM TOTAL VEHICLES:
CRITICAL SPEED:
LOCATION: Poinsettia Lane~900' e/o El Fuerte Street VEHICLES IN PACE:
OBSERVER/RECORDER: J. Gale PACE SPEED(S): ---------
NONE
POSTED SPEED LIMIT
WESTBOUND
DIRECTION OF TRAVEL
MPH # % ~ # % %tile % #
65
64
63
62
61
60
59
58
57
56 }<
55 X X
54 X X
53 X
52 X X X X
51 X X X X
50 X X X X X X
49 X X X X X
48 X X X X X X X
47 X X X
46 X X X X X
45
44 X X X
43 X X
42 X X
41 X X
40
39 X X
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1 2 1 1 100
2 4 2 2 99
2 4 2 2 97
1 2 2 2 95 2 1
4 8 6 6 93 4 2
4 8 7 7 87 6 3
6 12 11 11 80 10 5
5 10 7 7 69 4 2
7 14 11 11 62 8 4
3 6 10 10 51 14 7
5 10 11 11 41 12 6
6 6 30 12 6
3 6 8 8 24 10 5
2 4 3 3 16 2 1
2 4 4 4 13 4 2
2 4 5 5 9 6 3
4
2 4 4 4 4 4 2
Transportation Department
Traffic Division
100
51 MPH -----~-----
80 % -----------
43 TO 53 MPH ----------
EASTBOUND
DIRECTION OF TRAVEL
MPH
65
64
63
62
61
60
59
58
57
56
55
54
X 53
X X 52
X X X 51
X X X X X 50
X X 49
X X X X 48
X X X X X X X 47
X X X X X X 46
X X X X X X 45
X X X X X 44
X 43
X X 42
X X X 41
40
X X 39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
DATE: 5/11/10 TIME: 9:45 AM TO
WEATHER: Partly Cloudy & Cool
"""\
CITY OF CARLSBAD
SPEED SURVEY
10:25 AM TOTAL VEHICLES:
CRITICAL SPEED:
LOCATION: Poinsettia Lane-600' w/o Melrose Drive VEHICLES IN PACE:
OBSERVER/RECORDER: J. Gale -'---'-'--'--------PACE SPEED(S):
NONE
POSTED SPEED LIMIT
EASTBOUND
DIRECTION OF TRAVEL
MPH # % t# % %tile % #
65
64
63
62
61
60
59
58
57
56
55 X
54 X
53
52
51
50 X X
49 X X X X
48 X X X
47 X X X X
46 X X X
45 X X X X X X X
44 X X X X X
43 X X X X X
42 X X X X
41 X
40 X X X X
39
38 X X X
37 X X
36 X
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1 2 2 2 100 2 1
1 2 3 3 98 4 2
3 3 95 6 3
3 3 92 6 3
89
2 4 5 5 89 6 3
4 8 9 9 84 10 5
3 6 7 7 75 8 4
4 8 7 7 68 6 3
3 6 9 9 61 12 6
7 14 8 8 52 2 1
5 10 10 10 44 10 5
5 10 9 9 34 8 4
4 8 6 6 25 4 2
1 2 2 2 19 2 1
4 8 7 7 17 6 3
2 2 10 4 2
3 6 3 3 8
2 4 4 4 5 4 2
1 2 1 1 1
Transportation Department
Traffic Division
100
------5~0'-____ MPH
74 % ------------
40 TO 50 MPH -------'-'----
WESTBOUND
DIRECTION OF TRAVEL
MPH
65
64
63
62
61
60
59
58
57
56
X 55
X X 54
X X X 53
X X X 52
51
X X X 50
X X X X X 49
X X X X 48
X X X 47
X X X X X X 46
X 45
X X X X X 44
X X X X 43
X X 42
X 41
X X X 40
X X 39
38
X X 37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21