A. Authority To Install: The city shall place and maintain official traffic control devices when and as required under the traffic ordinances of the city to make effective the provisions of ordinances, and may place and maintain such additional official traffic control devices as may be deemed necessary to regulate, warn or guide traffic under the traffic ordinances of the city or the state vehicle code.
B. Specifications: All traffic control signs, signals, and devices shall conform to the manual and specifications approved by the state highway department. All signs and signals required under this title for a particular purpose shall, so far as practicable, be uniform as to type and location throughout the city. All traffic control devices so erected and not inconsistent with the provisions of state law or this title shall be official traffic control devices.
C. Presumption Of Legality:
1. Whenever official traffic control devices are placed in position approximately conforming to the requirements of this section, such devices shall be presumed to have been so placed by the official act or direction of lawful authority, unless the contrary shall be established by competent evidence.
2. Any official traffic control device placed pursuant to the provisions of this section and purporting to conform to the lawful requirements pertaining to such devices shall be presumed to comply with the requirements of this section, unless the contrary shall be established by competent evidence.
D. Avoiding Traffic Control Devices: No driver shall drive through a driveway or private property so as to avoid use of a street or traffic control device. (2011 Code)