The Council shall establish by resolution, and cause to be placed and maintained, appropriate traffic control devices to indicate parking spaces and zones, no parking zones, limited parking zones, reserved parking zones, loading zones, safety zones, school zones, hospital zones, quiet zones, traffic zones other than the above, truck routes, school stops, stop intersections, yield right-of-way intersections, one-way streets, streets to be laned for traffic, and play streets. The Council shall also have the power to designate and indicate by resolution intersections at which traffic shall be controlled by traffic signals; intersections at which left turns, right turns and U-turns shall be prohibited; and intersections at which markers, buttons or other indications shall be placed to indicate the course to be traveled by vehicles traversing or turning at such intersections. The City shall keep a record of all such traffic control devices.

No driver of a vehicle shall disobey the instructions of any official traffic control device placed in accordance with the provisions of this chapter, unless at the time otherwise directed by a peace officer, subject to the exceptions granted the driver of an authorized emergency vehicle under Section 321.231 of the Code of Iowa.

The Council is hereby authorized to designate and maintain crosswalks by appropriate traffic control devices at intersections where, due to traffic conditions, there is particular danger to pedestrians crossing the street or roadway, and at such other places as traffic conditions require.

Where traffic lanes have been marked on street pavements at such places as traffic conditions require, it is unlawful for the operator of any vehicle to fail or refuse to keep such vehicle within the boundaries of any such lane except when lawfully passing another vehicle or preparatory to making a lawful turning movement.

Traffic control devices shall comply with standards established by The Manual of Uniform Traffic Control Devices for Streets and Highways.