HomeMy WebLinkAboutAgenda Report - March 6, 1991 (43)y Of
CITY OF LODI
COUNCIL COMMUNICATION
AGENDA TITLE: Turner Road - Lodi Lake Park Traffic Study
MEETING DATE: March 6, 1991
PREPARED BY: Public Works Director
RECOMMENDED ACTION: That the City Council review the following study and take the
appropriate action.
BACKGROUND INFORMATION: The Public Works Department has received a number of
complaints over the last year concerning speedira and
pedestrian safety on Turner Road in the vicinity of Lodi
Lake. Parks Department staff has also complained about
difficulty exiting the park. Due to the number of complaints, staff has studied
this segment of Turner Road. The following contains recent actions and other
information concerning Turner Road at Lodi Lake.
In June of 1990, pedestrian crossing signs and pavement markings were installed
adjacent to the crosswalks in front of the park. Although the additional pedestrian
safety created by these signs is minimal, they were an immediate interim action
until a study could be completed. Because the park facilities that generate
pedestrian activity are in operation for such a short period of time during the
year, special considerations have to be made. The beach area is a major pedestrian
generator at the park. It opens on the Memorial Day weekend (end of May) and closes
on Labor Day (beginning of September). The daily hours of operation are noon to
6:00 p.m. The only other major pedestrian -generating events are the 4th of July
activities and the boat races held on the Sunday before the 4th of July. Pedestrian
activity across Turner Road at other times of the year is minimal. The Parks and
Recreation Director has informed us that we can expect increased pedestrian activity
to the drive-in on the south side of Turner Road due to the closing of the
concession stand in the park.
Existing Conditions
° Accident History
Available accident records indicate that 31 accidents occurred in this segment
from 1987 to the present (Exhibit A). One of these accidents involved a
pedestrian, although numerous "near misses" have been reported by the owner of the
drive-in on the south side of Turner Road. This pedestrian accident occurred on
September 2 of 1990. It involved a child almost 3 years old who emerged from
between parked cars approximately 270 feet west of Laurel Avenue and was struck by
a westbound vehicle. This accident did not occur at a crosswalk and was not
speed -related. Of the 31 total accidents occurring in this segment, 18 were
APPROVED:
THOMAS A. PETERSON
City Manager
CTURNER3/TXTW.02M (CO.COM) February 27, 19ff-t
Turner Road
March 6, 1991
Page 2
rear -end accidents. Nearly all occurred during daylight hours and 12 of the 18
accidents occurred during the period when the beach area was open. These
accidents are generally considered speed -related and are often caused by the
inattention of drivers. Distractions caused by the park and the curve in the
roadway could be contributing factors. Other accidents occurring in this segment
were left -turn and parking maneuvers. Only one accident was a right angle.
° Traffic Volumes/Speed Limits
Traffic counts taken in 1990 indicate that volumes in this area have increased by
approximately 20% since 1988. The current two-way volume is 16,300 vehicles per
day. Some of this increase may be due to the commercial development on West
Turner Road (Woodlake Plaza) and residential development in the Woodbridge area.
The existing speed limit of 40 mph was approved in January of 1989 based on an
engineering and traffic survey and is radar enforceable. The previous speed limit
was 35 mph.
° Pedestrian Activity
Pedestrian movement counts across Turner Road were performed while the beach area
was open on Tuesday, July 24, and Saturday, July 28, of 1990. The survey was
performed between the hours of 11:30 a.m. and 6:30 p.m. The results of the survey
are shown below.
Tues Sat
Crosswalk Location 7/24 7/28
Lake Entrance 84 94
Lake Exit 77 182
Total Pedestrians 161 276
Alternatives
° Traffic Signal
To provide the maximum safety for pedestrians, a traffic signal across Turner Road
at Loma Drive was requested by some citizens. However, the cost of signal
installations are high (approximately $100,000) and there are a number of
locations that have a greater need. In addition, Caltrans traffic signal warrants
are not satisfied under the existing conditions and the volume split of 94%/6% is
inappropriate for four-way stops.
A request was also received for pedestrian activated crossing signals. Staff does
not recommend this type of installation due to the high cost and reduced benefit.
The cost of this type of installation would not be much less than a traffic signal.
CTURNER3/TXTW.02M (CO.COM) February 27, 1991
Turner Road
March 6, 1991
Page 3
° Speed Reduction
Recent legislation (effective January 1, 1990) amending the California Vehicle
Code (Section 22357.1) provides for the decrease of speed limits near children's
playgrounds. This section states that local authorities may, by ordinance or
resolution, set a prima facie speed limit of 25 miles per hour on any street,
other than a State highway, adjacent to any children's playground in a public
park, but only during the particular hours or days when children are expected to
use the facilities.
The State has not established any standards for signing this reduced speed limit.
Variable message signing could be used if the speed limit is not in effect
year-round. This type of signing is only visible when the speed limit is in
effect and would be controlled by a programmable time clock.
Another alternate would be to sign the street similar to a school zone - "25 mph
when children are present". This would require discretion and judgement on the
part of both the driver and enforcement personnel. The pedestrian activity is
spread out through the day, which differs from a school with specific opening and
closing times.
The Police Chief has expressed serious doubt as to the practicality of enforcing a
25 mph speed limit in this area. Based on this and experience on Turner Road and
other streets, staff feels a 25 mph limit would not be observed and would be
inappropriate.
° Flashing Beacon
A flashing yellow beacon emphasizing the pedestrian crossing signs could be used
at this location. Although not applicable here, the warrants for a flashing
beacon are satisfied under the "school area pedestrian safety" section of the
Caltrans Traffic Manual (Exhibit B). Cost estimates provided by the Utility
Department show that overhead installation will cost $2,500 to $3,500 and
post -mounted installation will cost approximately $6,000 due to the underground
work necessary. The beacon would be controlled by a time clock.
° Adult Crossing Guard
Caltrans warrants for an adult crossing guard at a school crossing are also
satisfied. However, due to hours required to provide adequate pedestrian
coverage, City staff does not consider this a viable alternative. Also, the
Caltrans Traffic Manual indicates that a flashing yellow beacon should not be used
if an adult crossing guard is provided.
CTURNER3/TXTW.02M (CO.COM) February 27, 1991
Turner Road
March 6, 1991
Page 4
° No Parking Zone
In order to provide adequate sight distance for drivers exiting the lake, 145 feet
of additional "No Parking" is needed on the north side of Turner Road west of the
lake exit (Exhibit C). This would remove space for parking approximately 6 to 7
cars. Vehicles have been observed parking in this area primarily during beach use
hours. Due to the curve in Turner Road, it is difficult for drivers exiting the
lake to see oncoming eastbound vehicles.
° Left Turn Lane
Due to the number of rear -end accidents in this segment, the effect of adding a
two-way left turn lane in front of the lake entrance has been studied. A two-way
left -turn lane would reduce rear -end accidents and the additional "No Parking"
needed to accommodate the additional lane would reduce congestion in the area
(Exhibit D). This would remove space for parking approximately 25 cars.
Recommendations
° Speed Limit
While it may seem desirable to reduce the speed limit to 25 mph in front of the
park, staff feels it would be an empty gesture and misleading to pedestrians since
it will not be observed by drivers and is impractical to enforce.
° No Parking
Staff feels that extending the "No Parking" zone west of the lake exit is
necessary to provide adequate sight distance and should be installed regardless if
anything else is done.
° Two -Way Left Turn
The installation of a two-way left -turn lane is recommended to reduce rear -end
accidents and improve visibility at the crosswalks and other driveways in the
area. However, the loss of on -street parking may encourage more parking in the
neighborhood south of the park. Also, some locations in this area have no
sidewalk. Council may wish to require the installation of sidewalk by the
property owners in these areas (Exhibit D).
° Flashing Beacon
Staff does not have enough data from other locations in Lodi to make a firm
recommendation on the effectiveness of flashing beacons. Since the cost is
relatively low, it would be reasonable to install one.
CTURNER3/TXTW.02M (CO.COM) February 27, 1991
Turner Road
March 6, 1991
Page 5
FUNDING: Curb Markings - Street Maintenance Account
Other Work - To be determined
Jac L. Ronsko
Public Works Director
Prepared by Richard C. Prima Jr., Assistant City Engineer, and
Rick Kiriu, Senior Engineering Technician
JLR/RSK/mt
Attachments
cc: City Attorney
Police Chief
Assistant City Engineer
Assistant Civil Engineer -Traffic
s Parks and Recreation Director
Concerned Citizens
CTURNER3/TXTW.02M (CO.COM) February 27, 1991
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Flashing Yellow Beacons 10-05
1045.1 Fundion of Flashing Yellow Beacons
Flashing yellow beacons may be installed to sup-
plement standard school signing and markings for
the purpose of providing advance warning during
specified times of operation when school crossing
problems exist (See Figure 10-6) .
If school authorities are to operate the flashing yel-
low beacon, an interagency agreement should be ex-
ecuted to assure designation of a responsible adult to
operate the beacon controls, to provide accessibility
for necessary equipment maintenance and to fulfill
legal liability requirements.
10-QS.2 Worronts for Flashing Yellow .ieacons
A flashing yellow beacon may be warra: tod when
all of the following conditions are fulfilled:-
1.
ulfilled:1. The uncontrolled school crossing is on the -Sug-
gested Route to School'; and
Exhibit B
2. At least 40 school pedestrians use the crossing
during each of any two hours (not necessarily
consecutive) of a normal school day; and
3. The crossing is at least 600 feet from the nearest
alternate crossing controlled by traffic signals,
stop signs or crossing guards; and
4. The vehicular volume through the crossing ex-
ceeds 200 vehicles per hour in urban areas or
140 vehicles per hour in rural areas during the
same hours the students are going to and from
school for any purpose; and
5. The critical approach speed (85 percentile) ex-
ceeds 35 mph or the approach visibility is less
than the stopping distance.
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CITY COUNCIL
DAVID M. HINCHMAN. Mayor
JAMES W. PINKERTON, Jr.
Mayor Pro Tempore
PHILLIP A. PENNINO
JACK A. SIECLOCK
JOHN R. ;Randy) SNIDER
r-.
THOMAS A. PETERSON
CITY O F L, O D I
City Manager
ALICE M. REIMCHE
City Clerk
CITY HALL. 221 WEST PINE STREET
BOB MCNATT
P.O. BOX 3006
City Attorney
LODI, CALIFORNIA 95241-1910
(209) 334-5634
FAX (209)333-6795
February 27, 1991
SUBJECT: Turner Road - Lodi Lake Park Traffic Study
Dear Property Owner/Resident:
Enclosed is a copy of background information on an item that will be
discussed at the City Council meeting on Wednesday, March 6, 1991, at
7:30 p.m. The meeting will be held in the City Council Chamber, Carnegie
Forum, 305 West Pine Street. You are welcome to attend.
If you wish to communicate with the City Council, please contact Alice
Reimche, City Clerk, at (209) 333-6702.
If you have any questions about the item, please call Richard Prima or me
at (209) 333- 06.
Jac L. Ronsko
Publ c Works Director
J /mt
Enclosure
cc: City Clerk,/ /
LTURNER3/TXTW.02M
10-1
RESOLUTION NO. 91- 43
A RESOLUTION OF THE LODI CITY COUNCIL
APPROVING EXTENDING THE "NO PARKING" ZONE ON THE NORTH SIDE OF
TURNER ROAD WEST OF THE LODI LAKE EXIT
BE IT RESOLVED, that the Lodi City Council does hereby approve
the extension of "No Parking" on the north side of Turner Road, West of
the Lodi Lake exit, as shown on Exhibit A attached hereto; and
BE IT FURTHER RESOLVED, that staff is hereby directed to proceed
with a speed -zone study in the subject area; and
FURTHER RESOLVED, staff is directed to proceed with plans for the
installation of a flashing beacon in the subject area.
Dated: March 6, 1991
I hereby certify that Resolution No. 91- 43 was passed and
adopted by the City Council of the City of Lodi in a regular
meeting held March 6, 1991 by the following vote:
Ayes: Council Members - Pennino, Pinkerton, Sieglock, Snider
and Hinchman (Mayor)
Noes: Council Members - None
Absent: Council Members - None
&Z. 7)7'
Alice M. Reimche
City Clerk
91- 43
RES9143/TXTA.01V
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