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(There is no requirement to post signs at right turns saying,
"stop before turning" or something like that.
See the bottom of this page for more details.)
Warning Sign
Requirements
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Sign
Requirements
New
12-9-02, updated 9-29-12:
Until Jan. 1, 2013, the Vehicle Code
(excerpted below) requires
the posting of warning signs
like the one depicted below, "visible to traffic
approaching from all directions" at each
camera-equipped
intersection, or at all
the main entrances to town. Most
cities
have posted enough signs but not all signs comply with the
CalTrans specifications - particularly as to the minimum size of 30 x
42
inches.
CVC 21455.5. (a) The limit line, the
intersection, or a place designated in Section 21455, where a
driver
is required to stop, may be equipped with an automated
enforcement system if the governmental agency utilizing the system
meets all of the following
requirements: (1) Identifies the system by signs that clearly
indicate the system's presence and are visible to traffic approaching
from
all directions, or posts signs at all major entrances to the
city, including, at a minimum, freeways, bridges, and state highway
routes.
Beginning Jan. 1, 2013, cities no longer will have the
option to post the entrances to town. A new law (see SB 1303 on
the Legis page) requires that there be a sign near each camera.
CVC 21400. The Department of Transportation
shall, after consultation with local agencies and public hearings,
adopt
rules and regulations prescribing uniform standards and specifications
for all official traffic control devices placed pursuant to
this code, including, but not limited to, stop signs, yield
right-of-way signs, speed restriction signs...
CVC 21401. (a) Except as provided in
Section
21374, only those official traffic control devices that conform to the
uniform standards and specifications promulgated by the Department of
Transportation shall be placed upon a street or highway...
CVC 21465. No person shall place, maintain,
or display upon, or in view of, any highway any unofficial sign,
signal, device, or marking, or any sign, signal, device, or
marking which purports to be or is an imitation of, or
resembles, an official traffic control device or which attempts
to direct the movement of traffic or which hides from view any official
traffic control device.
CVC 21467. Every prohibited sign, signal,
device, or light is a public nuisance, and the Department of
Transportation, members of the California Highway Patrol, and
local authorities are hereby authorized and empowered without
notice to remove the same, or cause the same to be removed, or
the Director of Transportation, the commissioner, or local authorities
may bring an action as provided by law to abate such nuisance.

You can also download two clearer versions
of this chart, as follows.
If you would like to see a
somewhat clearer scan of this document, click here:
Warning Sign
Reqs., with Signature (jpeg - 80 kb)
If you would like to see a
very clear pdf copy of this document, but without signature,
click here:
Warning Sign Reqs.,
without Signature (pdf - 15 kb)
This document is not yet available on the
CalTrans website.
More About This Issue Before The Courts
If "your" city
has undersized signs and you are going to raise that issue in court,
you will need to be prepared to deal with the following sort of
reasoning by the judge: During a Sept. 2003 trial of a
ticket issued before Culver
City's March 2003
posting of full-sized signs, Comm. Amado ruled that (overall) size
doesn't matter - since the picture of the signal and the lettering
on the then-undersized signs were the same size as those required
for the full-sized signs, the fact that the overall dimensions were
too small would not matter. Judges in other towns may see it
the same way - or differently, of course.
Culver
City: During the Aug. 5, 2004 trial of a ticket issued
at Sepulveda / Machado in Culver City the defendant pointed
out that there was no warning sign on the large driveway (for a
housing complex) that makes up the 4th side of that
intersection. Comm. Amado ruled that it is not required to
post signs facing traffic coming from private property.
CalTrans Letter
Here is an August 2003 CalTrans letter giving
their official
position about sign requirements.
If you want to use this
letter in court, you'll need to call CalTrans and get them to mail you
a paper copy with a signature in ink. Such a letter isn't hearsay
when it's from a government official. It comes under an exception
called official writings. The exception is necessary so that high
government officials don't have to spend all their time testifying
about government policy in courts all over the place.
STATE OF CALIFORNIA
BUSINESS,TRANSPORTATION AND HOUSING AGENCY
GRAY DAVIS, Governor
DEPARTMENT OF TRANSPORTATION
DIVISION OF
TRAFFIC OPERATIONS
1120 N STREET,
MS 36
P. O. BOX
942873
SACRAMENTO, CA 94273-0001
PHONE (916) 654-2352
FAX (916) 653-6080
TTY (916) 653-4086
Flex your power! Be
energy efficient!
August 6, 2003
Dear Mr. ---------:
I am responding to your telephone call about the PHOTO ENFORCED (SR56)
sign. I hope the following information will be
helpful.
The California Department
of Transportation (Department) is responsible for developing standards
and specifications for traffic signs. For
the last 5 years I have been in charge of the Signs and Work Zones
Branch, which designs official traffic signs for use on all public
roadways in
the State of California.
California Vehicle Code (CVC) Section 21400 provides that the
Department shall,
after consultation with local agencies and public hearings, adopt rules
and
regulations prescribing uniform standards and specifications for all
official traffic control devices placed pursuant to the provisions of
the CVC. CVC Section 21401 provides that only those
official traffic control devices that conform to the uniform standards
and
specifications promulgated by the Department shall be placed upon a
street or
highway.
In
keeping with the
requirements of CVC Section 21400 the Department established the
California
Traffic Control Devices Committee to consult with local agencies. The
Committee is comprised of representatives
of State and local governments. The
Committee holds public hearings at least 3 times during each calendar
year. For more information, visit the
California Traffic Control Device Committee’s homepage at:
http://www.dot.ca.gov/hq/traffops/signtech/newtech/index.htm
The PHOTO ENFORCED
(SR56) sign was adopted by the Department on September 5, 1996, after
consultation with the California Traffic Control Devices Committee and
public hearings. The adopted
specification for the SR56 is enclosed. It
is the official standard of the
Department. It has not changed since it
was originally signed. The SR56
specification and other sign specifications are available for purchase
at:
Department of Transportation
Publication Distribution Unit
1900 Royal Oaks Drive
Sacramento, California 95815-3800
(916) 445-3520
The style, font,
size and spacing of letters and numerals on traffic signs conform to
the requirements specified in the Federal Highway Administration (FHWA)
publication entitled "Standard Alphabets for Highway Signs and Pavement
Markings," which is available for purchase from the FHWA web site
at:http://mutcd.fhwa.dot.gov/ser-pubs.htm
The
Department
and local agencies have some flexibility in the size of signs. However,
signs must be conspicuous and
legible to drivers. In Section 4-01.12
of the Department’s 1996 Traffic Manual it states, “Larger sizes may be
used where greater legibility or emphasis is needed. Special
signs or large signs are prescribed for
freeways and expressways. Under special conditions
such as alleys, limited parkway widths, parking facilities, parks,
etc., the use of approved sizes smaller than standard size signs may be
justified
based on engineering judgement. When sign
sizes are changed, standard shapes and colors shall be used and
standard proportions shall be retained insofar as practicable.” The
1996 Traffic Manual is available for
viewing on the Department’s web site at:
http://www.dot.ca.gov/hq/traffops/signtech/signdel/trafficmanual.htm
Cities and counties, not the Department, are responsible for installing
signs on
local streets and roads. CVC Section 21100 (d)
allows local authorities to adopt rules and regulations for regulating
traffic by means of official traffic control devices meeting the
requirements
of CVC Section 21400. CVC Section 21351 allows
local authorities to place and maintain such official traffic control
devices.
Thank
you for writing. I hope this helps.
Sincerely,
Greg Edwards, Chief
Highway
Signs and Work Zones Branch
(916)
654-3507
Enclosures:
|
Signs
for
Right
Turns?
There is no requirement to post
signs at right turns saying, "Stop Before Turning" or something like
that.
If there was such a requirement, there would have to be four
such signs at every signalized intersection in California. So,
the requirement is simply something you are supposed to know, and is
part of the written driving test.
If a city decided to make up their own signs saying "Stop Before
Turning" or "After Stop, Right Turn Permitted on Red," they would be in
violation of CVC 21401 and 21465 (above).
If you could swear that you have
seen such a sign, you may be thinking of the signs that say, "No Right
Turn on Red."
Or, you have been to South San
Francisco.

Sign in South San Francisco, from 2010 Grand Jury Report
Even
though there should be no "Stop Before Turning" signs, the city
still is required to put up big "Photo Enforced" signs - either at the
photo enforced intersections, or at the main entrances to town.
Federal
Guidelines for Signs
From Chapter V. of the Federal Highway
Administration's
Red Light Camera Systems Operational Guidelines (with emphasis
added):
( Please note that these are guidelines and compliance is not
mandatory; in the Introduction to the Guidelines, it says,
"Although not a regulatory requirement, the guideline is intended to
provide critical information for State and local agencies on relevant
aspects of red light camera systems in order to promote consistency,
proper implementation, and operation..." )
Federal
Guidelines, Chapter V., Warning Signs section (pg. 21, or 27th pg. of
the pdf)
Signs warning motorists that red light cameras are being used are
typically required by law or ordinance, but whether required or not,
should be posted as part of the driver awareness and
education process. These warning signs may be placed in the
following
locations at photo-enforced intersections:
· In
advance of photo-enforced intersections.
· At
photo-enforced intersections, typically on the far side traffic
signal pole.
· On
all approaches into an area where red light camera systems are used for
red light running.
Warning signs placed on all
approaches into an area, while used to satisfy legal requirements
in some jurisdictions, are appropriate as supplemental warning
signs but not as the primary warning for motorists. Advance
warning signs should
be installed at photo-enforced intersections.
All advance warning signs should be clearly visible and compliant with
the MUTCD (17). |
California has adopted its own version of the
Federal guidance applicable to sign placement. My detailed discussion
is at:
Sign
Placement - New
(MUTCD) Guidance.
Why Not In Greek?
We have a lot of tourists in California, and due to the
State's size and general lack of a public transportation system many of
them rent cars and drive.
To those not fluent in English, the CalTrans-approved
"Photo Enforced" warning signs must look like this:

...and South San Francisco's "After Stop, Right Turn
Permitted on Red" sign must look like this:
These signs were made up by
highwayrobbery.net. We are sure that in Greece and Mexico, the
warning signs
use international symbols which can be understood by all nationalities.