HomeMy WebLinkAboutAgenda Report - November 1, 1989 (76)CITY OF LODI
PUBLIC WORKS DEPARTMENT
T0: City Council
FROM: City Manager
MEETING DATE: Novmiber 1, 1989
AGENDA Tl=. Traffic Resolution Aniend=t - Four Way Stop Signs at the
Intersection of Central Avenue and Dm Street 1
x
RECOMMENDED ACEM That the City Council amend the Traffic Resolution
87-163 to appprove the installation of four-way stop signs at the intersection
of Central Avenue and Dm Street.
BACKGROUND The intersection of Central Avenue and Elm. ...Street
has been studied due to the accident rate. Currently, Central Avenue stops
at: l lm Street. Volumes on these streets are 1,400 and -2,400 ,vehicles per
day: respectively. W reviewed available accident .re -cords from 1986=to :ahe k A,
:. pre: ent and there have been 12 accidents. Accident;` records for 1988yindicate
that five' of the seven accidents are correctable with four way stop ;signs;
According to the guidelines, the number of correctable accidents gda.lIfaes
this intersection as a candidate for four-way stops (see` attached i 't
guidelines). The volume split, although not ideal, is reasonable
overall volumes are low. Y
A review of these accidents indicates that the majority of them involved the
southeast corner. A field check of this corner shows that parked wehic.les _
along Elm Street are causing a sight problem. Duo to the::
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CITY OF LODI
PUBLIC WC WS DEPARTMENT
t41 .,.
MUL-I -WAY STOP
WARRANTS
INTERSECTION OfV_y,N< L,. ana PLN
Any of the following conditions may warrant a multi -way STOP sign installation.
1. Where traffic signals are warranted and the need i s urgent, the four-way stop
is an interim measure that can be installed quicxlj to control traffic wni.l'e
arrzngements are being made for the signal installation.
Satisfied Not Sa cisfied
Z. An accident problem, as indicated by five or more reported a - - ,pe"
susceptible of correction by a multi -way stop installation in a 12 -month
period. Types of accidents susceptible of correction include right angle aro
left turn collisions.
Time perigd
1SVumbe . o co ctibl! accidents
t ;`
r
ictal number OT accraen---�
t�
atrs re �� ea
of Sat
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3. Minimum volume warrant:
a• The total vehicular volume entering
the intersection from all n'oproachzs,
rrn,A average at least 500 vehicles
per hour for any eight hours:: c an
t � ;
average day, and
,� tc�
e\�r
Highest 8 hours Ij +� ��. ,.A -7 � m
+
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\C ,�'� `v�` r.C` \k
tltn ��
-Hour t� k)I / / / / / / `
Total volurae,� 4 vehicles
� }
,major street 111,1 110 1 V,61114 I1f,11I 1 I V 1 !',`I
Average per Tour r�,L vei i a I cb_
m o street i 10 I 1 I04tI 9cf ( 6111 1112 110& 11Z� I I3
G�
b. The combined vehicular and pedestrian volume from the minor street or
highway must average at leas; 200
units er hour for the same eight hours
3
with an average delay to minor street ve icular traffic of at least 30
seconds per vehicle during the maximum hour.
I `.
1 �4u� -�- �:,;1 : ,`/ :/ ,�l/ �`� �� ,:`�
A�erage peroK �r 110 �> 'velicles
Kinor )creel 1` C! . - c; I(EST)
ven�cl_es C 1 IiL�Y I `�1--. I 1 i 11 I Lir 11l I I
Average per hour pedestrians
s
±
I Peaestr,ans I I { I 1 i 1 i
Average units per hour ✓
I w
v;clvrz �tit;U1�%
Satisfied Not.
When the 85 -percentile approach speed of the major street Traffic exceeds 40
miles per hour, the minimum vehicular volume warrant is 70 percent of the above
requirements.
85-oercentile speed --Na atistied
Satis'ied ✓
A four-way STOP sign installation ;s a useful traffic control measure when other
available meams.of control are not acequate. it s'ould not be used unless the
volume of `rar is on the intersecting roads is about equal and is undesirable ?,�
low volume intersections.
,raffic ma;cr street
.War c minor scree- %•7 0
�- CITY OF LODI
PUBLIC WORKS DEPARTMENT
PATH OF MOVING VEHICLE
REAR END COLLISICN
FIXED OBJECT
PARKED VEHICLE
SJDcSWIPE
DATE:_-
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Ce►4-MAL. Ate► YEAR(SY b(P- E>S
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Collision Diagram
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Intersection Of
PATH OF MOVING VEHICLE
REAR END COLLISICN
FIXED OBJECT
PARKED VEHICLE
SJDcSWIPE
DATE:_-
Y
Ce►4-MAL. Ate► YEAR(SY b(P- E>S
Collision Diagram
G;
Intersection Of
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PATH OF MOVING VEHICLE
REAR END COLLISICN
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DATE:_-
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SJDcSWIPE
DATE:_-
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89-154
RES89154/TY.TA.02J
Alice M.
Reimche
City Clerk
89-154
RES89154/TY.TA.02J