[1961 Code, § 13.32; Ord. 653]
The state traffic laws regulating the speed of vehicles shall be applicable upon all streets within the city, except as this chapter, as authorized by state law, hereby declares and determines upon the basis of an engineering and traffic investigation that certain speed regulations shall be applicable upon specified streets or in certain areas, in which event it shall be unlawful for any person to drive a vehicle at a speed in excess of any speed so declared in this chapter when signs are in place giving notice thereof.
[1961 Code, § 13.33; Ord. 653]
(A) 
Upon the basis of an engineering and traffic investigation, the City Council, by resolution, may decrease maximum speed limits at intersections and outside urban districts and increase limits within urban districts.
(B) 
Upon the basis of an engineering and traffic investigation, the City Council, by resolution, may determine the maximum speed limits on arterial streets.
(C) 
Speed limits established pursuant to this section shall be applicable at all or such times as shall be indicated by official traffic control devices.
[1961 Code, § 13.35; Ord. 653]
The City Traffic Engineer is authorized to regulate the timing of traffic signals so as to permit the movement of traffic in an orderly and safe manner at speeds slightly at variance from the speeds otherwise applicable within the district or at intersections and shall erect appropriate signs giving notice thereof.