HomeMy WebLinkAbout1986-10-06; Traffic Safety Commission; ; Request for additional stop sign at intersections of Calle Madero and Levante Street and the intersection of Nueva Castilla and Levante StreetICITY Of CARLSBAD
TRAFFIC SAFETY COMMISSION
COMMISSION REPORT OF: October 6, 1986 ITEM NO •.!2.:1.
LOCATION: Intersection of Calle Madero and Lev ante Street
and the intersection of Nueva Castilla and Levante
Street
INITIATED BY: Councilwoman Ann Kulchin
BACKGROUND:
Councilwoman Ann Kulchin requested that these intersections
be considered for stop signs. The intersections were dis-
cussed at the May, 1986 Traffic Safety Commission meeting
with a motion made for stop signs and then withdrawn (see
attached minutes).
DATA:
Levante Street serves as a collector street located south of
and parallel to La Costa Avenue. Calle Madero and Nueva
Castilla are short streets that connect Levante Street to La
Costa Avenue.
Traffic volumes at the two intersections are attached and are
very low. No accidents have been reported at the Levante
Street/Nueva Castilla intersection within the past twelve
(12) months. At Calle Madero, there has been one (1)
reported accident during the past twelve (12) months, The
collision diagram for Calle Madero is attached.
Warrants for stop signs are attached. It is observed that
the main street and side street traffic are not reasonably
balanced. When volumes on each leg of the intersection are
approximately equal, the intersection may be considered for
stop signs. The accident history does not reflect a need for
stop control at these intersections. Stop signs should be
installed only where traffic.and roadway conditions are such
that the signs are necessary.
TRAFFIC SAFETY COMMISSION
COMMISSION REPORT OF: October 6, 1986
Continued
CONCLUSION:
ITEM NO,D-5
None of the warrants for the installation of stop signs at
the intersection of Levante Street with Calle Madero and/or
Nueva Castilla are met.
RECOMMENDATION:
Stop sign warrants are not met, therefore the Traffic Safety
Coordinating Committee recommends that the request for
additional stop signs at these two (2) intersections be
denied. Staff will continue to monitor this intersection.
NECESSARY COUNCIL ACTION:
None required if the request is denied. An ordinance will be
required for Council action if the stop sign is recommended.
POLICY:
Rl
The Rl sign shall be used on public roads where
a stop is required. Stop signs shall be erected on both
the left and right side of one-way roadways which are
30 feet or more in width. Stop signs shall not be installed
at signalized intersections. Conditions warranting
STOP signs are:
1. On the less important road at its intersection
with a main road where application of the nor-
mal right of way rule is unduly hazardous as
evidenced by accidents susceptible of correc-
tion by STOP signs.
2. On a county road or city street at its intersec-
tions with a state highway.
3. At the intersection of two main highways. The
highway traffic to be stopped depends on ap-
proach speeds, volumes, and turning move-
ments.
4. On a street entering a legally established
through highway or street.
5. On a minor street where the safe approach
speed to the intersection is less than 10 miles per
hour.
A STOP sign is not a "cure-all" and is not a substi-
tute for other traffic control devices. Many times the
need for a STOP sign can be eliminated if the sight
distance is increased by removing obstructions.
The installation of STOP signs at locations where
they are unexpected or where approach speeds are
high should be avoided if possible because they may
increase accidents. However, if there is no alterna-
tive to a STOP sign, then an advance Code W17
STOP AHEAD sign and appropriate pavement
markings should be placed in conjunction with iL
Publicity through the radio and press is highly de-
sirable when STOP signs are installed and especially
when it is necessary to change their location.
Any of the following conditions may warrant a
four-way stop sign installation:
1. Where traffic signals are warranted and the
need is urgent, the four-way stop is an interim
measure that can be installed quickly to control
traffic while arrangements are being made for
the signal installation.
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.
3. Minimum volume warrant:
a. The total vehicular volume entering the in-
tersection from all approaches must average
at least 500 vehicles per hour for any eight
hours of an average day, and
b. The combined vehicular and pedestrian vol-
ume from the minor street or highway must
average at least 200 units per hour for the
same eight hours with an average delay to
minor street vehicular traffic of at least 30
seconds per vehicle during the maximum
hour.
c. When the 8.5-percentile approach speed of
the major street traffic exceeds 40 miles per
hour, the minimum vehicular volume war-
rant is 70 percent of the above requirements.
A four-way stop sign installation is a useful traffic
control measure when other available means of con-'
trol 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,
When STOP signs are placed on all entering legs
of an intersection, each STOP sign may be supple-
mented by a separate plate mowited below it with
the message "3-WAY", "4-WAY", etc. The supple-
mental plate shall have white letters on a red back-
ground.
The 18"xl8" size is for use only on bicycle trails
where bicyclists are required to stop. If the sign applies
to motorists and bicyclists, the standard size stop sign
shall be used
The bike 18"x18" size has been added. The sign
format has been changed to agree with the federal
format Please note the minor change in border width
for the 24", 30", 36" and 48" sizes.
GU LU 0 I UN U I A Ii ii/-u.,
CITY OF CARLSBAD
TRAFFIC ENGINl:ERING SECTION
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TRAFFIC COUNT L~ . SHEET
TS# __ _
Street(s)
Count Da.te~-\\-t{..to ~-\'Z.-f!,~ Data Reduction by H\IJ½ Date ~-%-&
Location: On /4v,p..µ,(~ (btwn/at) Cc-o-\\t IJL.,)4.lbnd) ?:! •~,:,., "4
• '
Day/Direction
Time Period r,~ €.S: ~rs
0000-0100 {.,,
0100-0200 -z..
0200-0300 0
0300-0400 0
0400-0500 ~
0500-0600 4
0600-0700 -z.. (
0700-0800 7t,,
0800-0900 &<q
0900-1000 73
1000-1100 ,;;t,
1100-1200 .i;-z...
1200-1300 (p~
1300-1400 l.\-~
1400-1500 Se»
1500-1600 Bi:::.
1600-1700 74
1700-1800 1 cl.
1800-1900 \O'Z.
1900-2000 7"'3 '
2000-2100 48
2100-2200 z./
2200-2300 Id\
2300-2400 \t:?
TOTAL(S) ~o\ 4J3'?'
PEAK HOUR(S)
PEAK FLOW( S)
Special conditions or remarks: ___________________ _
APT-= 1,oe,3
' TRAFFIC COUNT [ ., ~' SHEET
TS# __ _
Street(s).
Count Da~e""\-\\-&.to~.,..\Z-8 ~ Data Reduction by zz Date <:!:>\-\I:::,-g~
Location: On ka.,v4.N'<',., (btwn/at) C::,~ rdand}F;:;N\Av<'KA--W,
Day/Direction
Time Period ""("~(3 ~s
0000-0100 ~
0100-0200 7
0200-0300 "2...
0300-0400 "'3 -
0400-0500 ~
0500-0600 -z...
0600-0700 ,, "30
0700-0800 8,~
0800-0900 7\
0900-1000 Co\(-
1000-1100 ,,._e,
1100-1200 (pe,
1200-1300 e,e,
1300-1400 70
1400-1500 Se,,.
1500-1600 \6~
1600-1700 loC\
1700-1800 /z.2-
1800-1900 118
190~-2000 ~z..
2000-2100 q.z
2100-2200 S\
2200-2300 z:_~
2300-2400 15
TOTAL(S) 7~A (p I I
PEAK HOUR(S)
PEAK FLOW(S)
Special conditions or remarks: ___________________ _
A-,;;;rr :::::= ,, 3 7 ""-
TRAFFIC COUNT J,-, SHEET
TS# __ _
Street(s
Count Da_te 'f. //. $'.'.& to ,. /Z· !!,~ Data Reduction by t-f/J '? Date 9 -J'z -tz,
Location: On° &4:/A t/4,Q4J'l2 (btwn/at) ~/fZk (and)(AS17//4 lt,,
Day/Direction
Time Period 1J:½;e, Ue
0000-0100 I
0100-0200 'Z-
0200-0300 0
0300-0400 ~
0400-0500 ~
0500-0600 l
0600-0700 7
0700-0800 I '-I-
0800-0900 \~
0900-1000 I I
1000-1100 I-:;
1100-1200 -z.o
1200-1300 l '-1-
1300-1400 1"3
1400-1500 /1,
1500-1600 z~
1600-1700 37
1700-1800 3~
1800-1900 'St)
1900-2000 )~
2000-2100 I~
2100-2200 I~
2200-2300 ~
2300-2400 ~
T0TAL(S) zo~ /14
PEAK H0UR(S)
PEAK FL0W(S) I
Special conditions or remarks: ___________________ _
APT --
~· TS# __ _
TRAFFIC COUNT C·, ,. SHEET
Street(s) I
Count Date 11~-Z:X,to % //-~C:,,
Location: On ?--?v,,,,,.,v-r<!-
Data Reduction by /"-:?';27 Date 9'-/Z.-,SC:::.
(btwn/at) p,,.-y4/41'.-j0"4'(and) _____ _
Day/Direction
Time Period ~ ~13
0000-0100 s
0100-0200 '3
0200-0300 -z.._
0300-0400 z_
0400-0500 I
0500-0600 s,
0600-0700 '31
0700-0800 6,,/
0800-0900 40
0900-1000 '?0
1000-1100 43
1100-1200 L/-3
1200-1300 79
1300-1400 03 .
1400-1500 &0
1500-1600 70
1600-1700 /t7j}
1700-1800 /t73
1800-1900 "/3
19oq-2000 5?
2000-2100 c/&
2100-2200 i/1
2200-2300 Z:3
2300-2400 c;
TOTAL(S) &&>2.-1£3!!3
PEAK HOUR(S) .
PEAK FLOW(S)
Special conditions or remarks: ___________________ _ Avr--=:::: 10L/.v
I
'
TRAFFIC COUNT [ ·--SHEET
TS# __ _
Street(s) 7
Count Date ¢1,;?-f¾:, to '1,-1/-&,
Location: On ,? e vA,vrt::;
Data Reduction by My'':? Date 9-/Z.-86
(btwn/at) ~k'A IA'@(and) &A /,,c/--,r /21/v' .,
Oay/Oirection
Time Period w/4 /3 -T¾l3
0000-0100 &,
0100-0200 S,
0200-0300 z_
0300-0400 I
0400-0500 3
0500-0600 /
0600-0700 4:!':?
0700-0800 13\
0800-0900 \bu,
0900-1000 u'?
1000-1100 /02-
1100-1200 7c:,
1200-1300 go
1300-1400 7?
1400-1500 9/
1500-1600 /0/
1600-1700 J le/
1700-1800 /01
1800-1900 /13
190~-2000 @q-
2000-2100 171
2100-2200 t/&,
2200-2300 -z~
2300-2400 d,
TOTAL(S) -1 o-Ji1. '37t/-
PEAK HOUR(S) ,
PEAK FLOW(S)
Special conditions or remarks: ___________________ _
AeC -:::::::: i; t/ '70
TRAFFIC COUNT [J~" SHEET
TS# __ _
Street(s)
Count Daj:e 9;'.10-,% to 9-//-8,;, Data Reduction by M,-j~ Date 9-/Z-Be-
Location: On J/J/€v'A 04'?171/4 (btwn/at) /4..v__.,,yr,,__. (and)~ ~,,,,,,.,,,,, P/.
Day/Direction
Time Period ~/.3 --,--~13
0000-0100 ~
0100-02DO LI
0200-0300 I
0300-0400 2-
040D-0500 ' (,,
0500-0600 Z-
0600-0700 It?
0700-0800 -z_,g
0800-0900 z--1;,
0900-1000 '31
1000-1100 t.f I
1100-1200 t./-'3
1200-1300 ~q
1300-1400 i/-1
1400-1500 0g
1500-1600 '7~
1600-1700 -?'8
1700-1800 /1"3 '
1800-1900 uO
1900-2000 0"5
2000-2100 '3'?
2100-2200 "30
2200-2300 -Z.7
2300-2400 g
TOTAL(S) -?'7'7 £20
PEAK HOUR(S) ,
PEAK FLOW(S)
Special conditions or remarks: ___________________ _ Avr~ 83s