The Traffic Engineer, as authorized by the Council, shall place and maintain or cause to be placed and maintained official traffic-control devices upon streets and highways as required under the Vehicle Code or the traffic laws of this City to make effective the provisions of the Code or the laws, and may place and maintain or cause to be placed and maintained such appropriate official traffic-control devices as may be deemed necessary to properly indicate and to carry out the provisions of the Vehicle Code or the Municipal Code or to warn or guide traffic.
(Ord. 34 § 4-3.401, 1980)
No provisions of the Vehicle Code (unless expressly stated therein), or of the Municipal Code which require official control devices, shall be enforced against an alleged violator unless appropriate official traffic-control devices are in place giving notice of such provisions of the traffic laws.
(Ord. 34 § 4-3.402, 1980)
(a) 
The Traffic Engineer, as authorized by the Council, shall install and maintain official traffic signals.
(b) 
The Traffic Engineer shall ascertain and determine the locations where such signals are required by an engineering and traffic survey and his or her determinations therefrom shall be made in accordance with those traffic engineering and safety standards and instructions set forth in the California State Department of Transportation Traffic Manual.
(Ord. 34 § 4-3.403, 1980)
(a) 
The Traffic Engineer as authorized by the Council shall establish, designate and maintain crosswalks at intersections and other places by appropriate devices, marks or lines upon the surface of the roadway where, in his or her opinion, it is essential to the effective and safe flow of vehicular and pedestrian traffic.
(b) 
The Traffic Engineer is authorized to install signs at or adjacent to an intersection in respect to any crosswalk directing that pedestrians shall not cross in the crosswalk so indicated.
(Ord. 34 § 4-3.404, 1980)
The Traffic Engineer shall have authority to mark traffic lanes upon the roadway of any street or highway where a regular alignment of traffic is necessary.
(Ord. 34 § 4-3.405, 1980)
The Traffic Engineer is authorized to place and maintain upon highways distinctive roadway markings as described in the Vehicle Code.
(Ord. 34 § 4-3.406, 1980)
The Traffic Engineer, as authorized by the Council, may remove, relocate or discontinue the operation of any traffic control device not specifically required by the Vehicle Code or this chapter whenever he or she determines in any particular case that the conditions which warranted or required the installation no longer exist or apply.
(Ord. 34 § 4-3.407, 1980)
The Traffic Engineer, as authorized by the Council, 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 chapter.
(Ord. 34 § 4-3.408, 1980)
No person or agency, other than the City, unless authorized by the Traffic Engineer, shall paint any street or curb surface.
(Ord. 34 § 4-3.409, 1980)
Any person or agency performing construction or maintenance work within a roadway shall provide and maintain temporary traffic-control devices as set forth in the California State Department of Transportation Traffic Manual. The traffic-control devices are to be maintained during such time that construction or maintenance work creates a hazardous or unsafe condition in the vehicle or pedestrian travelway.
(Ord. 34 § 4-3.410, 1980)