Title 10 — VEHICLES, TRAFFIC, AND PARKING
Chapter 10.20 — TRAFFIC CONTROL DEVICES AND TRAFFIC CONTROL SIGNALS
Commerce Municipal Code · 2026-09 edition · updated 2026-10-02 · Commerce
10.20.010 - Authority to install traffic control devices.¶
(a)
The city administrator or director shall have the authority to place and maintain or cause to be placed and maintained official traffic control devices, as defined herein in this title and as may be amended by the vehicle code, when and as required to make effective the provisions of this title.
(b)
Whenever the vehicle code or the city's code, ordinances, resolutions or policies requires, for the effectiveness of any provision thereof, the traffic control devices be installed to give notice to the public of the application of such law, the city administrator or director are hereby authorized to install or cause to be installed the necessary devices subject to any limitations or restrictions set forth in the law applicable thereto.
(c)
The city administrator, or director, may also place and maintain or cause to be placed and maintained such additional traffic control devices as the traffic commission or city council may deem necessary or proper to regulate traffic or to guide or warn traffic, but such determination shall be made only upon the basis of traffic engineering principles and traffic investigations and in accordance with such standards, limitations, and rules as may be set forth in the vehicle code, the CAMUTCD, and this title or as may be determined by ordinance or resolution of the city council.
(Ord. No. 706, § 2, 2-5-2019)
10.20.020 - Legible signs required.¶
No provision of the vehicle code or of this title for which signs are required shall be enforced against an alleged violator unless appropriate legible signs are in place giving notice of such provisions of the vehicle, traffic, and parking laws.
(Ord. No. 706, § 2, 2-5-2019)
10.20.030 - Obedience.¶
All persons, pedestrians, and all operators of any bicycle, vehicle or train shall obey the instructions of any official traffic control device, traffic control signal, markings, barriers, or barricades, placed in accordance with the vehicle code, the CAMUTCD, and this title, unless otherwise directed by a law enforcement officer or other authorized person as designated in this Title, subject to the exceptions granted by the vehicle code, the CAMUTCD, this title, and this code.
(Ord. No. 706, § 2, 2-5-2019)
10.20.040 - Installation of traffic control signals.¶
(a)
The city administrator, director, are hereby authorized to install and maintain official traffic control signals, as defined herein in this title and as may be amended by the vehicle code or the CAMUTCD, at those intersections and other places where traffic conditions are such as to require that the flow of traffic be alternately interrupted and released in order to prevent or relieve traffic congestion or to protect life or property from exceptional hazard.
(b)
The city engineer, or his or her respective qualified designees, shall ascertain and recommend the locations where such signals are required by field investigation, traffic counts and other traffic information as may be pertinent. Its determinations therefrom shall be made in accordance with those traffic engineering and safety standards and instructions set forth by applicable local, state, uniform or industry standards, for designing, applying and planning for the installation of said signals.
(c)
Whenever the city administrator, or director, installs and maintains an official traffic signal at any intersection, he or she may likewise erect and maintain at the intersection street name signs clearly visible to traffic approaching from all directions, unless the street name signs have previously been placed and are maintained at any of the intersections.
(Ord. No. 706, § 2, 2-5-2019)
10.20.050 - Lane marking.¶
The director is hereby authorized to mark center lines and lane lines upon the surface of the roadway to indicate the course to be traveled by vehicles. He or she may place signs or devices temporarily designating lanes to be used by traffic moving in a particular direction, regardless of the center line of the highway.
(Ord. No. 706, § 2, 2-5-2019)
10.20.060 - Special roadway markings.¶
The director, or his or her respective designee, is authorized to place and maintain distinctive roadway markings as described in the vehicle code and the CAMUTCD on those streets or parts of streets where the volume of traffic, or geometric roadway restrictions renders it hazardous to moving traffic and the public. Signs and markings shall have the same effect as similar markings placed by the California Department of Transportation pursuant to provisions of the vehicle code.
(Ord. No. 706, § 2, 2-5-2019)
10.20.070 - Removal, relocation, discontinuance of traffic control devices and roadway…¶
Authority.
The city administrator, or director, or their respective designees, are hereby authorized to remove, relocate or discontinue the operation of any traffic control device not specifically required by the vehicle code, the CAMUTCD or this title whenever, in a particular case, the conditions which warranted or required the installation no longer exist or obtain.
(Ord. No. 706, § 2, 2-5-2019)
10.20.080 - Hours of operation.¶
The city administrator, or director, or their respective designees, shall be authorized to 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 title.
(Ord. No. 706, § 2, 2-5-2019)
10.20.090 - Unauthorized curb painting.¶
No person, unless authorized by this city, shall paint any street or curb surface, including the painting of numbers on a curb surface, unless authorized by a permit issued authorizing same, resolution or ordinance
of this city pertaining thereto. Notwithstanding the penalties herein, this provision shall be subject to the penalties as designated in Chapter 1.12 of this code.
(Ord. No. 706, § 2, 2-5-2019)
10.20.100 - Approval of type of barrier, barricade or sign.¶
No person, public utility or department in the city shall erect or place any barrier, barricade, or sign on any street unless of a type approved by the city administrator, city engineer, or director, or unless authorized under this title, by the traffic commission, or by resolution or ordinance of the city council.
(Ord. No. 706, § 2, 2-5-2019)
10.20.110 - Obedience to barriers, and prohibition from installing barriers.¶
No person, public utility or any entity in the city shall disobey the instructions or remove, tamper with or destroy any barriers or sign lawfully placed on any street. Furthermore, no person or entity shall install any barrier or sign without a permit authorizing said action.
(Ord. No. 706, § 2, 2-5-2019)
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