HomeMy WebLinkAboutAgenda Report - December 16, 1981 (22)SPEED LIMIT AND Council was apprised that residents along Brandywine
PEDESTRIAN Drive have complained of speeding alcng the street
CROSSWALK ON and have requested the installation of 3 -way stops
BRANDYWINE at Brandywine and Fairmont and Brandywine and .
DRIVE Reisling to control the problem.
rSTABLISHED
Lrandywine Drive is a minor collector street
RES. NO. 81-178 Approximately 1/2 mile in length with a curb -to -curb
width of 44 feet and an existing Prima Facie Speed
Limit of 25 MPH.
"Section 22352 of California Vehicle Code
(b) Twenty-five miles per hour.
(1) On any highway other than a state
highway, in any business or residence
district unless a different speed is
determined by local authority under
procedures set forth in this code."
The Engineering Division conducted a study of
Brandywine and Fairmont and Brandywine and Reislina
to determine if there was a need for multi -way
stop signs. None of the suggested warrants were
met.
City officials are frequently requested to install
stop signs on residential streets to control speeding.
One argument against this misuse of traffic control
devices is that it encourages lack of respect for
all traffic control devices. An available survey
from another city shows that where unwarranted stop
signs were installed as speed deterents, there was
an alarmingly high disobedience rate for the signs.
(788 of the vehicles observed either did not stop
or made rolling stops.)
A more effective argument is that unwarrented stop
signs are not effective in reducing speeds.
The same survey showed average speeds ware not
significantly redur--ed after the installation of
unwarranted stop signs, and there was a slight
increase in high speeds, possibly because motorists
were trying to make up for lost time after passing
the sign.
McCarty second, adopted Resolution No -c-91
1) establishing a speed limit of 30 mph on Brandywinc:
Drive between Ham Lane and Hutchins Street; and
2) established a pedestrian crosswalk across
Brandywine Drive 280' east of Thompson Drive.
Continued December
16, 1981 I
SPEED LIMIT
Under present State of California "speed trap
AND PEDESTRIAN
laws, and more restrictive laws which will become
CROSSWALK ON
effective January 1, 1982, radar cannot be used
BRANDYWINE DRIVE
on Brandywine Drive to control speed ni q without an
ESTABLISHED
engineering study. To establish a realistic speed
(Cont'd)
limit that can be enforced by radar, the Engineering
Division conducted a speed survey along Brandywine
-
Drive. In general, speed limits should be set at,
or slightly below, the 85th percentile speed with
special consideration being given to any unusual
roadside conditions.
The 85th percentile speed on Brandywine Drive is
36 mph and the Engineering Department recommends
that the limit be established at 30 mph. The
reasons for establishing the speed limit at 6 mph
below the 85th percentile speed are because of the
curvature of the street and because 6 uncontrolled
T -intersections intersect Brandywine Drive.
The pedestrian crossing would be installed across
Brandywine Drive approximately 280 feet east of
Thompson Drive and at a location where a walkway
and wheelchair ramps are provided to a shopping
center to the north.
Following discussion, with questions being directed
to Staff, Council, on motion of Councilman Hughes,
McCarty second, adopted Resolution No. 81-178
1) establishing a speed limit of 30 mph on Brandywine
Drive between Ham Lane and Hutchins Street; and
2) established a pedestrian crosswalk across
Brandywine Drive 280' east of Thompson Drive.
1(2)CITY OF LODI
PUBLIC WORKS DEPARTMENT
TO: City Council
FROM: City Manager
COUNCIL COMMUNICATION
DATE: December 10, 1981
SUBJECT: Establish a Speed Limit and Pedestrian Crosswalk on Brandywine Drive
RECOMMENDED ACTION: That the City Council adopt a resolution:
1. Establishing a speed limit of 30 mph on Brandywine Drive between Ham
Lane and Hutchins Street; and
2. Establishing a pedestrian crosswalk across Brandywine Drive 280'
east of Thompson Drive.
BACKGROUND INFORMATION: Residents along Brandywine Drive have complained of
speealng along the street and have requested the installation of i-way stops
at Brandywine G Fairmont and Brandywine G Reisling to control the problem.
Brandywine Drive is a minor collector street approximately 1/2 mile in length
with a curb -to -curb width of 44 feet and an existing Prima Facie Speed Limit
of 25 mph.
"Section 22352 of California Vehicle Code
(b) Twenty-five miles per hour.
(1) On any highway other than a state highway, in any busing
'or residence district unless a different speed is determined
by local authority under procedures set forth in this code."
The Engineering Division conducted a study of Brandywine G Fairmont and
Brandywine G Reisling to determine if there was a need for multi -way stop
signs. None of the suggested warrants were met. See Exhibits A b B.
City officials are frequently requested to install stop signs on residential
streets to control speeding. One argument against this misuse of traffic
control devices is that it encourages lack of respect for all traffic control
devices. An available survey from another city shows that where unwarranted
stop signs were installed as speed deterents, there was an alarmingly high
disobedience rate for the signs. (78% of the vehicles observed either did
not stop or made roiling stops.)
A more effective argument is that unwarranted stop signs are not effective
in reducing speeds.
APPROVED:
HENRY A. GLAVES. City Manager
FILE 40.
The pedestrian crossing would be installed across Brandywine Drive approximately
280 feet east of Thompson Drive and at a location where a walkway and wheelchair
ramps are provi d to a shopping center to the north. (See Exhibit E.)
/Jack L. Ronsko
Publ a Works Director
Attachments
JLR/eeh
City Council
i'
December 10, 1981_
Page 2
The same survey showed average speeds were not significantly reduced after
k
p.
the installation of unwarranted stop signs, and there was a slight increase
in high speeds, possibly because motorists were trying to make up for lost
time after passing the sign.
Under present State of California "speed trap" laws, and more restrictive
}
laws which will become effective January 1, 1982, radar cannot be used on
Brandywine Drive to control speeding without an engineer ng study. (See
Exhibit C.) To establish a realistic speed limit that can be enforced by
radar, the Engineering Division conducted a speed survey along Brandywine
Drive. The results of the study are shown on Exhibit D. In general, speed
i -
limits should be set at, or slightly below, the 85th percentile speed with
special consideration being given to any unusual roadside conditions.
F
The 85th percentile speed on Brandywine Drive is 36 mph and the Engineering
Department recommends that the limit be established at 30 mph. The reasons
for establishing the speed limit at 6 mph below the 85th percentile speed
are because of the curvature of the street and because 6 uncontrolled
T -intersections intersect Brandywine Drive.
`
The pedestrian crossing would be installed across Brandywine Drive approximately
280 feet east of Thompson Drive and at a location where a walkway and wheelchair
ramps are provi d to a shopping center to the north. (See Exhibit E.)
/Jack L. Ronsko
Publ a Works Director
Attachments
JLR/eeh
••� LORI
1•
• PUBLIC WORKS Di Pl�RTPJIENT
CITY to'
INTERSECTION OF �jtZA�Y W 1 t� E
DATE X2--1- st
EXHIBIT A
K. -Z YJAY STOP SIGN!
VJAPZRA NT S
and r-A1VMDWX
BY M zD
Any of the following conditions may warrant a 4-woy stop sign installation.
I. Where traffic signals are worrpnted and the need is urgent, the four-way stop is on interim
measure that can be installed quickly to control traffic while arrangements are being mode
for the signal installation.
Satisfied Not Satisfied_X_
2. An accident problem, as indicated by five or more reported accidents of a type susceptible
of correction by a four-way stop installation in a 12 -month period. Types of -accidents
susceptible of correction include right angle cnd left turn collisions. (Exhibit B)
• Number of accidents
Satisfied Not tisf ied__�<�
3. The total vehicular volume entering the intersection from all approaches must overage at
least 500 vehicles per hour for any eight hours of on overage day. (Exhibit C)
Highest 8 hours 1 t o.m - to (p P.M.
Total volume X040 vehicles
Average per hour &4 vehicles
Satisfied of Si 49ied X.
4. The combined vehicular and pedestrian volume from the minor street or highway must
average at least 200 units per hour for the some eight hours with an: average delay to
minor street vehicular traffic of at least 30 seconds per vehicle during the maximum hour.
7- a a1 V"
Highest 8 hours it a.m. to _ (v P.M.
Total vehicles vo ume Z
Total pedestrian volume Iq estimate
Average units per hour
• Satisfied Not Satisfied` X
5. When the 85 -percentile approach speed of the major street traffic exceeds 40 miles par
hour, the minimum vehicular volume warrant is 70 percent of the above requirements.
(Exhibit D)
• 85 -percentile speed 36 MPH
Satisfied Wot Satisfied__)er
6. A four-way stop sign installation is a useful traffic control measure when other available
means of control are not adequate. It should not be used unless the volume of traffic
on the intersecting roads is about equal and is undesirable at low volume intersections.
% Traffic major street%
% Traffic minor street15atisf�i:ed!
96
Satisfied Not �}�_
C-)(WZ1T A
— ._,_..w..
D� 1 IN CSF LOM
PUBLIC WOit►:5 DEPARTMENt
EXHIBIT A
F( -'i WAY STOP SIGN
.� WARP.A NT S
INTERSECTION OF ZMy1AMLJ1QE and QE%SLIQG
DATE 17, — ! $ t BY 1aGD
Any of the following conditions may warrant a 4 -%-my stop sign installation.
I. Where traffic signals are warrented and the need is urgent, the four-way stop is an interim
measure that con be installed quickly to control traffic while arrangements are being made
for the signal installation. Satisfied Not Satisfied_
2. An accident problem, as indicated by five or more reported accidents of a type susceptible
of correction by a four-way stop installation in a 12 -month period. Types of accidents
susceptible of correction include right angle and left tum collisions. (Exhibit B)
Number of accidents 0
Satisfied Not tis ied)�_
3. The total vehicular volume entering the intersection from all approaches must average at
least 500 vehicles per hour for any eight hours of an average doK� (Exhibit C)
.I - e, A
Highest 8 hours I I a.m . to ___�_(a m.
Total volume vehik el s
Average per hour c5 ~ vehicles
Satisfied ofo cis ied�,
4. The combined vehicular and pedestrian volume from the minor street or highway must
average at least 200 units per hour for the some eight (ours with an average delay to
minor street vehicular traffic of at least 30 seconds per vehicle during the maximum hour.
•7-8. q.w.
Highest 8 hours 1 t a.m. to �.m.
Total vehicles vo ul me (o 14
Total pedestrian volvme�estimate
Average units per hour 1p
• Satisfied Not Satisfied_
5. When the 85 -percentile approach speed of the malt,, street traffic exceeds 40 miles par
hour, the minimum vehicular volume warrant is 70 percent of the above requirements.
(Exhibit D)
85 -percentile speed 3Co MPH
Satisfied of Satisfied
6. A four-way stop sign installation is a useful traffic control measure when other available
means of control are not adequate. It should not be used unless the volume of traffic
on the intersecting roads is about equal and is undesirable at low volume intersections.
% Traffic major street 7$ 6/6
% Traffic minor street Z,Z %
Sorisfied Not SotiJi
F-DW181T B
M - ..
CITY OF LORI
PUBLIC WORKS DEPARTMENT
SpeaI lirw IMitd IOM
40601. No ptace officer or other person shall use a speed trap in arresting. or
i part=pating or assisting in the arrest of, any person for any alleged violation of
fhb code nor shall any speed trap be used in securing evidence as to the speed of
any vehicle for the purpose of an arrest or prosecution tinder this code.
SI+0 Trap
40802. A "speed trap" is either of the following:
(a) A particular section of a highway measured as to distance anti with
boundaries marked, designated, or otherwise determined fit order that the speed
of a vehicle may be calculated by securing the time it takes the vehicle to travel
the known distance.
(b) A particular section of a highway with a prima facie speed limit provided
by this code or by local ordinance pursuant to paragraph (1) of subdivision b) of
Section 22352. or established pursuant to Section 22354, 22337, 22358, or' 58.3
which speed limit is not justified by an engineering and traffic survey conducted
within rive years prior to the date of the alleged violation, and where enforcement
involves the use of radar or other electronic devices which measure the speed of
moving objects. The provisions of this subdivision do not apply to local streets and
roads.
Forpurpo�s of this section, local streets and roads shall be defined by the latest
functional usage and federal -aid system maps as submitted to the Federal ! li hway
Administration. When these maps have not been submitted. the following
definition shall be used: A local street or road primarily provides access to abutting
residential property and shall meet the following three conditions:
1. Roadway width of not more than 40 feet
2 Not more than Va mile of uninterrupted length. Interruptions shall include
official traffic control devices as defined in Section 44l5.
3. Not more than one traffic lune in each direction.
'Kris section shall remain in effect only until January 1, 1982, and as of that daps
Is repealed.
NOT& This soction remains In offod only unfit January 1, 1962 at which limo it is
ropeeled and the following section becomes effective.
40802. A "speed trap" is either of the following:
(a) A particular section of a highway measured as a distance and with
boundaries marked, designated, or otherwise determined in order that the spm
of a vehicle may be calculated by securing the time it takes the vehicle to travel
the known distance.
(b) A particular section of a highway with a prima facie speed limit provided
by this code or by local ordinance pursuant to paragraph (1) of subdivision (b) of
Section 22352, or established pursuant to Section 22334, 22357, 22358, or 22338.
which speed limit is not justified by an engineering and traffic survey conductea
within five years prior to the date of the alleged violation, and where enforcernent
involves the use of radar or other electronic devices whi,:h measure the sued of
moving objects.
This section shall become operative on January 1, 1982-
APorerod Gr
MCQ%1 wt.[c works Wrtctor Coe•
W
ra
RESOLUTION NO. 81-178
RESOLUTION ESTABLISHING A SPEED LIMIT AND
PEDESTRIAN CROSSWALK ON BRANDYWINE DRIVE
RESOLVED that the City Council of the City of Lodi does
hereby establish a speed limit of thirty (30) miles per hour on
Brandywine Drive between Ham Lane and Hutchins Street, Lodi.
BE IT FURTHER RESOLVED that the City Council of the City
of Lodi does hereby establish a pedestrian crosswalk across
Brandywine Drive 280' east of Thompson Drive, Lodi, as depicted
in Exhibit "E" attached hereto and thereby made a part hereof.
Dated: December 16, 1981
I hereby certify that Resolution No. 81-178 was passed
and adopted by the City Council of the City of Lodi in.
a regular meeting held December 16, 1981 by the follow-
ing vote:
Ayes: Councilmen - Hughes, Pinkerton, Katnich
and McCarty
Noes Coi.ncilmen - None
Absent: Councilmen - None
Id#YX
ALICE M. IMCHE
City Clerk
CITY"bF LODI
PUBLIC WORKSDEPARTMENT
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