(1) 
The director of public works subject to the approval of the city manager is authorized to place markers, buttons, or signs within or adjacent to intersections indicating the course to be traveled by vehicles turning at such intersections in accordance with the provisions of this traffic code and RCW 47.36.060.
(2) 
When authorized markers, buttons or other indications are placed within an intersection indicating the course to be traveled by vehicles turning thereat, no operator of a vehicle shall disobey the directions of such indications.
(Ord. 1517 § 31-29, 1971)
The director of public works, subject to the approval of the city manager, is authorized to determine those intersections at which operators of vehicles shall not make a right, left, or U turn, and shall place proper signs 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 same shall be plainly indicated on the signs, or they may be removed when such turns are permitted.
(Ord. 1517 § 31-30, 1971)
Whenever authorized signs are erected indicating that no right, left, or U turn is permitted, no operator of a vehicle shall disobey the directions of any such sign.
(Ord. 1517 § 31-31, 1971)