(a) The traffic engineer shall make continuous traffic surveys and studies of the movement of traffic on the streets of the city, and the chief of police or a duly authorized agent will cooperate to make effective the provisions of this chapter and of other traffic ordinances of the city, and to make and enforce temporary or experimental regulations to cover emergencies or special conditions. A temporary or experimental regulation shall take effect at such time as the appropriate traffic-control sign, signal, or device is in place as required under this chapter or other traffic ordinances of the city. A temporary or experimental regulation shall remain in effect for a period of time not to exceed 90 days unless otherwise provided in this chapter.
(b) If the traffic engineer or the chief of police determines that a hazardous condition still exists after the expiration of the 90 day period due to street construction, reconstruction, or repairs and an extension of temporary traffic restrictions is necessary for the peace, safety, and general welfare, then the traffic engineer is empowered to extend the temporary regulations governing traffic at and around the construction site, until the completion of the project. The traffic engineer shall keep a record of the temporary and experimental regulations, and these records will reflect the date that the traffic control signs, signals, and devices were installed and removed. (Ord. Nos. 14584; 19749; 21186)