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Title 15 — VEHICLES AND TRAFFIC›Division 1 — TRAFFIC CODE

Los Angeles County Municipal Code Ch. 15.20 Traffic Signs and Signals

Los Angeles County Municipal Code · 2026-09 edition · updated 2026-10-04 · Los Angeles County

Cite as: Los Angeles County Municipal Code Chapter 15.20 · Text as of 2026-10-04

15.20.010 - Official signs designated—Determination authority.

A.

The board shall determine and designate the character of all official warning, regulatory and direction signs other than those signs for which specifications are established by the Vehicle Code.

B.

The board hereby determines that insofar as they are applicable to country highways, all warning, regulatory and direction signs appearing on the Uniform Sign Chart as approved by the California Sign Committee are official signs.

(Ord. 6544 Ch. 1 Art. 3 § 1301, 1954.)

Exceptions & meaning →

15.20.020 - Character of signals.

The board shall determine the character of all official traffic control signals.

(Ord. 6544 Ch. 1 Art. 3 § 1305, 1954.)

Exceptions & meaning →

15.20.030 - Locations where signals are required.

The board shall designate at what intersections and other locations traffic shall be controlled by official traffic-control signals.

(Ord. 6872 § 1, 1956: Ord. 6544 Ch. 1 Art. 3 § 1306, 1954.)

Exceptions & meaning →

15.20.040 - Placement, maintenance and operation.

The commissioner shall place, maintain and operate or cause to be placed, maintained and operated, all official traffic-control signals authorized by the board as provided in this Division 1.

(Ord. 6544 Ch. 1 Art. 3 § 1307, 1954.)

Exceptions & meaning →

15.20.050 - Hours of operation.

The commissioner shall determine the hours and days during which any traffic-control device shall be in operation or be in effect, except in those cases where such hours or days are specified in this Division 1, or established by order of the board.

(Ord. 6544 Ch. 1 Art. 3 § 1320, 1954.)

Exceptions & meaning →

15.20.060 - Obedience to traffic signals.

Every operator and every pedestrian shall comply with and obey any indication, as set forth in the California Vehicle Code, presented by any traffic signal upon any highway placed under the authority of the board.

(Ord. 6544 Ch. 1 Art. 3 § 1321, 1954.)

Exceptions & meaning →

15.20.070 - Obedience to traffic signs.

Every operator and every pedestrian shall comply with and obey every instruction appearing on any traffic sign or other marking, which sign or marking has been erected or placed by authority of the board or commissioner or this Division 1.

(Ord. 6544 Ch. 1 Art. 3 § 1319, 1954.)

Exceptions & meaning →

15.20.080 - Signs prerequisite to enforcement.

No provisions of this Division 1 for which signs are required may be enforced against any alleged violator thereof, if at the time and place of such alleged violation any sign required by this Division 1 is not in proper position and sufficiently legible to

be seen by an ordinarily observant person.

(Ord. 6544 Ch. 1 Art. 3 § 1304, 1954.)

Exceptions & meaning →

15.20.090 - Warning and directional signs.

The commissioner may place and maintain all official warning and directional signs necessary to proper control of traffic.

(Ord. 6544 Ch. 1 Art. 3 § 13202, 1954.)

Exceptions & meaning →

15.20.100 - Regulatory signs.

The commissioner shall place all regulatory signs and other markings required or authorized either by this Division 1 or by finding of the board or finding of the commissioner.

(Ord. 6544 Ch. 1 Art. 3 § 1303, 1954.)

Exceptions & meaning →

15.20.110 - Distinctive roadway markings.

Whenever the State Department of Public Works determines and designates a distinctive roadway marking which shall indicate no driving over, the commissioner is authorized to designate by such markings those streets or parts of streets where the volume of traffic, or the vertical or other curvature of the roadway, renders it hazardous to drive on the left side of such markings, or signs and markings. Such markings, and signs or markings, shall have the same effect as similar markings and signs placed by the State Department of Public Works pursuant to provisions of the Vehicle Code.

(Ord. 6544 Ch. 1 Art. 3 § 1309, 1954.)

Exceptions & meaning →

15.20.120 - Lane guide lines and other pavement markings.

The commissioner may place appropriate traffic guide lines dividing highways into the number of traffic lanes that is proper and necessary and to place such other pavement markings as are necessary to direct vehicular movements in accordance with requirements of this Division 1 and the California Vehicle Code.

(Ord. 6544 Ch. 1 Art. 3 § 1312, 1954.)

Exceptions & meaning →

15.20.130 - Parking space markings.

The commissioner may install and maintain parking space markings to indicate parking space adjacent to curb where authorized parking is permitted. When such parking space markings are placed in the highway, subject to other and more restrictive limitations, no vehicle shall be stopped or left standing other than within a single space unless the size or shape of such vehicle makes compliance impossible.

(Ord. 6544 Ch. 1 Art. 3 § 1310, 1954.)

Exceptions & meaning →

15.20.140 - Safety zones.

The commissioner may install and maintain safety zones at all locations where there is particular danger to standing pedestrians and may locate and designate the same upon the surface of the roadway by appropriate devices, signs or marks.

(Ord. 6544 Ch. 1 Art. 3 § 1311, 1954.)

Exceptions & meaning →

15.20.150 - Equestrian crossing signs.

The commissioner shall erect appropriate signs of a type approved by the department of public works indicating those intersections of bridle paths and highways which the board, pursuant to Section 21805 of the Vehicle Code, by resolution has designated as equestrian crossings.

(Ord. 7843 § 2 (part), 1960: Ord. 6544 Ch. 1 Art. 3 § 1313, 1954.)

Exceptions & meaning →

15.20.160 - Temporary removal of signs during construction, repair or emergency.

Whenever because of the construction, alteration, repair or improvement of any highway, or temporary detour, or because of other emergency situation, a traffic hazard will be created by compliance with provisions of this Division 1 and that commissioner so finds, he shall either remove or cover up any sign or other traffic marking which requires such compliance. While such sign or other marking is removed or covered up, the effect of such provision of this Division 1 is suspended. At the end of such emergency, unless otherwise determined by the board, the commissioner shall replace or uncover such sign or marking.

(Ord. 8010 § 1, 1961: Ord. 6544 Ch. 1 Art.3 § 1316, 1954.)

Exceptions & meaning →

15.20.170 - Weight limit signs—Emergency procedures.

If a weight limit is suspended pursuant to this chapter and a different weight limit is necessary, the commissioner shall erect and maintain during the emergency appropriate signs complying with the provisions of Section 15.44.040, except subsection A thereof. At the end of the emergency, the commissioner shall remove such temporary signs and uncover and restore the original signs unless the board otherwise determines.

(Ord. 6544 Ch. 1 Art. 3 § 1317, 1954.)

Exceptions & meaning →

15.20.180 - Removal of signals and other facilities—Commissioner authority.

The commissioner may remove traffic signals and necessary appurtenances and other traffic devices, such as flashers, when such removal becomes necessary because of new construction, intersection reconstruction, modernization of traffic signal system, or because of driveway construction or relocation. When such construction, intersection reconstruction, modernization of traffic signal system or relocation has been completed, the commissioner need not replace such traffic flashers or other appurtenances which have been rendered unnecessary by the new construction, intersection reconstruction, modernization of traffic signal system, or because of driveway construction or relocation.

(Ord. 7043 § 1, 1956: Ord. 6544 Ch. 1 Art. 3 § 1308, 1954.)

Exceptions & meaning →

15.20.190 - Removal of signs and markings—When placed by board finding.

If the commissioner has erected any sign or placed on the pavement any markings pursuant to a finding of the board that facts existed necessitating the traffic regulation or prohibition indicated by such sign or markings, or pursuant to any provision of Ordinance 2177, Ordinance 3549 or Ordinance 3922, which provision is continued in effect only as a finding of the board, and the board finds that such regulation or prohibition no longer is necessary, the commissioner shall remove such sign or markings.

(Ord. 6544 Ch. 1 Art. 3 § 1314, 1954.)

Exceptions & meaning →

15.20.200 - Removal of signs and markings—Commissioner authority.

If the commissioner has erected any sign or placed on the pavement any markings pursuant to his finding that facts existed necessitating the traffic regulation or prohibition indicated by such sign or markings, and he finds that such regulation or prohibition no longer is necessary, he shall remove such sign or markings.

(Ord. 6544 Ch. 1 Art. 3 § 1315, 1954.)

Exceptions & meaning →

15.20.210 - Unauthorized signs, signals and lights—Removal requirements.

The road commissioner and the sheriff shall remove every unofficial sign, signal or device which purports to be or is an imitation of or resembles an official traffic sign or signal, or which attempts to direct the movement of traffic, or which hides from view any official traffic sign or signal, or which in any other respect violates the provisions of Section 21465 or 21466 of the State Vehicle Code.

(Ord. 7843 § 2 (part), 1960: Ord. 6920 § 1 (part), 1956: Ord. 6889 § 1, 1956: Ord. 6544 Ch. 1 Art. 3 § 1322, 1954.)

Exceptions & meaning →

15.20.220 - Interference with signs deemed misdemeanor.

Every person who, without permission of the commissioner to do so, removes, defaces, damages or causes the removal, defacement or damage of any sign erected pursuant to this Division 1 is guilty of a misdemeanor.

(Ord. 6544 Ch. 1 Art. 3 § 1318, 1954.)

Exceptions & meaning →

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