The State traffic laws regulating the speed of vehicles shall be applicable upon all streets within the City, except that the City may by ordinance declare and determine upon the basis of 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 when signs are in place giving notice thereof, but no City ordinance shall regulate the speed of vehicles upon controlled access highways of the State.
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.
[CC 1970 §18-49; Ord. No. 621 §31, 11-5-1962]
The Street Department, under the direction of the Commissioner of Streets, shall post at all entrances to the City, suitable signs indicating the speed limits provided in this Title.
All portions of highways, roads and streets, on which a speed limit has been established, shall be marked by signs erected at the beginning and end of such designated portions of highways, roads or streets.
[CC 1970 §18-45; Ord. No. 621 §27, 11-5-1962]
No person shall operate or drive a motor vehicle, except authorized emergency vehicles on emergency runs, on any public highway, road, street or alley in the City at a rate of speed in excess of twenty-five (25) miles per hour, except on State highways, in zones otherwise provided for by this Code or other ordinance and on through streets.
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Cross Reference — For additional speed limits, see sch. II of this title.
A. 
No person shall drive a motor vehicle at such a slow speed as to impede or block the normal and reasonable movement of traffic, except when reduced speed is necessary for safe operation or in compliance with law. Peace officers may enforce the provisions of this Section by directions to drivers, and in the event of apparent willful disobedience to this provision and refusal to comply with direction of an officer in accordance herewith, the continued slow operation by a driver is a misdemeanor.
B. 
No vehicle shall be operated at a speed of less than forty (40) miles per hour on any highway which is part of the interstate system of highways, unless:
1. 
A slower speed is required for the safe operation of the vehicle because of weather or other special conditions; or
2. 
Agricultural implements, self-propelled hay-hauling equipment, implements of husbandry and vehicles transporting such vehicles or equipment may be operated occasionally on interstate highways for short distances at a speed of less than forty (40) miles per hour if such vehicle or equipment is operated pursuant to a special permit issued by the Chief Engineer of the State Department of Highways and Transportation pursuant to Section 304.200, RSMo., and the regulations established pursuant to such Section.
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Editor's Note: Former Section 320.060, Motorists To Exercise Highest Degree of Care — Violation, Penalty, was repealed 6-16-2015 by Ord. No. 1824 §1.