HomeMy WebLinkAboutResolutions - No. 94-41RESOLUTION NO. 94-41
---------------------
---------------------
A RESOLUTION OF THE LODI CITY COUNCIL
AMENDING TRAFFIC RESOLUTION NO. 87-163 TO APPROVE THE SPEED -ZONE
SURVEY ON CENTURY BOULEVARD BETWEEN CHEROKEE LANE AND STOCKTON
STREET, AND REDUCING THE SPEED LIMIT BETWEEN CHEROKEE LANE
AND STOCKTON STREET FROM 55 MPH TO 40 MPH
BE IT RESOLVED, that the Lodi City Council does hereby approve
the Speed Zone Survey on Century Boulevard between Cherokee Lane and
Stockton Street, attached hereto as Exhibit A; and
RESOLVED, by the Lodi City Council that City of Lodi Traffic
Resolution No. 87-163, Section 7 - Speed Limits - is hereby amended to
reduce the existing speed limit between Cherokee Lane and Stockton
Street from SS mph to 40 mph, as indicated in the Speed Zone Survey.
Dated: April 20, 1994
I hereby certify that Resolution No. 94-41 was passed and adopted
by the City Council of the City of Lodi in a regular meeting held
April 20, 1994 by the following vote:
Ayes: Council Members - Davenport, Pennino and
Sieglock (Mayor)
Noes: Council Members - Mann
Absent: Council Members - Snider
fifer Perrin
Y
Cler
94-41
ru!`tlJrrollJr I . IhL -i
wrz:a�s�
AND TRAFFIC SURVEY
SEE NARRATIVE FOR
Q
BACKGROUND INFORMATION
ILrI T RI r
u
ar w
�1�_44TU ►2Y ItI 9LlI o Ash
4 HI.
SPEED TABLE
WIDTH
-- b
_ROADWAY
NO. OF LANES
MEDIAN TYPE
-- --- 0-"a -
TRAFFIC SIGNAL DATA
GK
1401-1 . KAIh t7 co! IG�E7�
AVERAGE DAILY TRAFFIC
I ry
085. SPEED-CRITICAL.85th% W44
O 43
-PACE(%) w9
-'+1
t'//
s �,
-MEDIAN,50th% \h'D
161
EXISTING SPEED ZONE
Y -KI A —e i
PROPOSED SPEED ZONE
LEGEND;
MPH
SPEED GRAPH
�F -
Ll
�^
- }+-.
_.�
._-rlr
r -swn Loanw
_
����t
1. R144 -t- -�-�'--
j�
---
A, -SRM 9GM
,U(% -SmD UYR S•(:N (Mr.)rE4
Sr.�_i.�'
.. -Tnr�
�-
�---AD
' __ ---- r--
-----
--r---
C-DWAUARDM C
- =
'
r'
--- _
---
`_''
TT=--
�=---
--•-• -
—
—•_
---
-
"•
'•" •-
---
fwu.�7(�e1.
o72i
-7A.7i1C e,b.N
--- -cm Lw
T-- i
i
-T
..,-
, -__
_
-_
---r-
--"-1---
------
4-1-
-r—
- 4'�"I
-�o.0 uMrt aas r.0
ACCIDENT PLOT YR: VjJS
YR: 1110
j
1
I14 la 3
ACCIDENT RATE-ACC./MILL VEH.-MI.
--- - - --- ...- - 19 --- ----
-
�)I Dols I
Revision^
+
CITY 0 F LO D I
CENTURY BOULEVARD
P E
—
D^° D"'
MCC N0. l7eos
PUBLIC WORKS DEPARTMENT
CHEROKEE TO STOCKTON
SURVEY
wrz:a�s�
SPEED ZONE REPORT - Century Boulevard between Cherokee Lane and Stockton Street
• REFERENCE - Speed Zone Surveys are performed in the City of Lodi following State of
California Department of Transportation (Caltrans) guidelines in accordance with Section
40802(b) of the California Vehicle Code. These guidelines are outlined in Chapter 8 of the
Caltrans Traffic Manual.
• STUDY - Important factors to consider in determining the speed limit most appropriate to
facilitate the orderly movement of traffic and which is reasonably safe are prevailing speeds,
unexpected conditions to drivers, and accident records.
Prevailing Speeds (85th Percentile Speeds) - Reasonable speed limits conform to the actual
behavior of the majority of motorists and by measuring motorists' speeds one will be able to
select a speed limit which is both reasonable and effective. Speed limits should normally be
established at the first five mile per hour increment below the 85th percentile speed.
However, in matching existing conditions with the traffic safety needs of the community,
engineering judgment may indicate the need for a further reduction of five miles per hour.
Four radar surveys were performed and the 85th percentile speeds ranged from 40 to 44.
The results of these radar surveys are shown below.
Century Boulevard Segment Eastbound Westbound
Cherokee Lane to Stockton Street 40 - 43 mph 44 mph
Unexpected Conditions - When roadside development results in traffic conflicts and unusual
conditions that are not readily apparent to drivers, speed limits below the 85th percentile are
warranted. The following factors were considered: roadway design speed, safe stopping
sight distance, superelevation, shoulder conditions, profile condition, intersection spacing
and offset, commercial driveway characteristics, and pedestrian traffic in the roadway
without sidewalks.
There are no unexpected conditions used to further reduce the speed limit.
Accidents - Accident records for the most recent two years were considered in determining
the speed limits. Accidents on segments of roadways are classified by their accident rate.
Accident rates are determined by the number of accidents occurring within a segment of
roadway and the traffic volume within that segment. Accident rates are shown in accidents
per million vehicle miles (ACCIMVM). The accident rate on this segment of Century
Boulevard is 0.0. The latest city-wide accident rate is 4.1 ACC/MVM. The accident rate for
this segment is shown below.
Century Boulevard Segment Accident Rate
Cherokee Lane to Stockton Street 0.0
RECOMMENDATION - Because Century Boulevard west of Cherokee Lane was only
recently extended to Stockton Street, this is the first Speed Zone Survey performed on this
street segment. Per Section 22352(b) of the California Vehicle Code the existing prima facie
speed limit on this segment of Cherokee Lane is 55 mph because of the small amount of
units fronting and having access to Century Boulevard. The recommended posted speed
limit is based on the 85th percentile speeds observed in the field. It is not recommended to
further reduce the speed limit due to unexpected conditions or accident records.
The following posted speed limit is appropriate:
Century Boulevard Segment Posted Speed Limit
Cherokee Lane to Stockton Street 40 mph
CENSPD.DOC