A. 
The city traffic engineer shall have the authority and duty to place and maintain or cause to be placed and maintained official traffic-control devices when and as required to make effective the provisions of this title.
B. 
Whenever the Vehicle Code requires for the effectiveness of any provision thereof that trafficcontrol devices be installed to give notice to the public of the application of such law the city traffic engineer is 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 traffic engineer may also place and maintain or cause to be placed or maintained such additional traffic-control devices as he deems necessary or proper to regulate traffic or to guide or warn traffic, but he shall make such determination 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 this title as may be determined by ordinance or resolution of the city council.
(Ord. 1032 § 2, 1978)
A. 
The traffic commission is charged with the duty to determine the necessity to install and maintain or cause to be installed and maintained official traffic-control signals 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 traffic commission shall ascertain and determine the locations where such signals are required by field investigation, traffic counts and other traffic information as may be pertinent and its determinations therefrom shall be made in accordance with accepted traffic engineering and safety standards and procedures.
C. 
Whenever the traffic commission causes to be installed and maintained an official traffic-control signal at any intersection, it shall likewise cause to be erected and maintained at such intersection, street name signs clearly visible to traffic approaching from all directions unless such street name signs have previously been placed and are maintained at any such intersection.
(Ord. 1032 § 2, 1978)
The city traffic engineer is authorized to have centerlines and lanes marked upon the surface of the roadway to indicate the course to be traveled by vehicles and may place or cause to be placed signs temporarily designating lanes to be used by traffic moving in a particular direction, regardless of the centerline of the highway.
(Ord. 1032 § 2, 1978)
The city traffic engineer is authorized to have distinctive roadway markings as described in the Vehicle Code placed and maintained on 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 marking or signs and markings. Such marking or signs and markings shall have the same effect as similar markings placed by the State Department of Transportation pursuant to provisions of the Vehicle Code.
(Ord. 1032 § 2, 1978)
The traffic commission is authorized to have official traffic-control devices placed within or adjacent to intersections and indicating the course to be traveled by vehicles turning at such intersections, and the traffic commission is authorized to locate and indicate more than one lane of traffic from which drivers of vehicles may make right-hand or left-hand turns, and the course to be traveled as so indicated may conform to or be other than as prescribed by law or ordinance.
(Ord. 1032 § 2, 1978)
The traffic commission is authorized to determine those intersections at which drivers of vehicles shall not make a right, left or U turn, and shall have proper signs placed at such intersections. The making of such turns may be prohibited between certain hours of any day and permitted at other hours, in which event the prohibitions shall be plainly indicated on the signs or they may be removed when such turns are permitted.
(Ord. 1032 § 2, 1978)
When the traffic commission determines that the making of right turns against red or stop indications at locations controlled by official traffic-control signals, would seriously interfere with the safe and orderly flow of traffic, the traffic commission shall cause to be erected and maintained signs prohibiting such movement.
(Ord. 1032 § 2, 1978)
Whenever any ordinance or resolution of this city designates any one-way street or alley, the city traffic engineer shall have placed and maintained signs giving notice thereof, and no such regulations shall be effective unless such signs are in place. Signs indicating the direction of lawful traffic movement shall be placed at every intersection where movement of traffic in the opposite direction is prohibited.
(Ord. 1032 § 2, 1978)
Whenever any ordinance or resolution of this city designates and describes any street or portion thereof as a through street, or any intersection at which vehicles are required to stop at one or more entrances thereto, or any railroad grade crossing at which vehicles are required to stop, the city traffic engineer shall have erected and maintained stop signs as follows:
A stop sign shall be erected on each and every street intersecting such through street or portion thereof so designated and at those entrances to other intersections where a stop is required and at any railroad grade crossing so designated; provided, however, that stop signs shall not be erected or maintained at any entrance to an intersection when such entrance is controlled by an official traffic-control signal. Every such sign shall conform with, and shall be placed as provided in the Vehicle Code.
(Ord. 1032 § 2, 1978)
No person, public utility or department in the city shall erect or place any barrier or sign on any street unless it is of a type approved by the city engineer nor disobey the instructions, remove, tamper with or destroy any barrier or sign lawfully placed on any street by any person, public utility or by any department of this city.
(Ord. 1032 § 2, 1978)
The traffic commission may recommend the removal, relocation or discontinuation of operation of any official traffic-control device not specifically required by the Vehicle Code or this title whenever it determines in any particular case that the conditions which warranted or required the installation no longer exist or prevail.
(Ord. 1032 § 2, 1978)
The traffic commission 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 title.
(Ord. 1032 § 2, 1978)
No person, unless authorized by this city, shall paint any street or curb surface; provided, however, that this section shall not apply to the painting of numbers on a curb surface by any person who has complied with the provisions of any resolution or ordinance of this city pertaining thereto.
(Ord. 1032 § 2, 1978)