A. Traffic control devices are all signs, signals, markings and devices placed on, over or adjacent to a street or highway to regulate, warn or guide traffic.

B. The city engineer is authorized to place and maintain traffic control devices, signs and signals as required under the traffic regulations of the city to make effective the provisions of the regulations. The city engineer may place and maintain such additional traffic control devices as he may deem necessary to regulate traffic under the traffic laws of the city or under state law or to guide or warn traffic excepting therefrom changes in speed limits or traffic light placement which shall be changed after council approval. All traffic control signs, signals and devices now in place are hereby ratified and approved as so placed. Notwithstanding other sections of this chapter, the city engineer shall have the authority to temporarily place, modify, and maintain traffic control devices restricting movement, speed, access, and parking as necessary to accommodate special events of less than seven days’ duration or public works construction projects.

C. The driver of any vehicle shall obey the instructions of any official traffic control device applicable thereto placed in accordance with the traffic regulations of the city, unless otherwise directed by the police chief, subject to the exceptions granted in this code or by state law. [Code 2006 § 11-3-3. Ord. 2007-13, 8-14-2007].