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.
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.
Except where otherwise provided by signs erected pursuant to duly passed and approved ordinances, no person shall operate a vehicle on any street in the City in excess of twenty-five (25) miles per hour.
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 an ordinance violation.
No person shall operate a motor vehicle upon those portions of the roadways which are set forth and described in Schedule I at a rate of speed in excess of that speed limit set for such portions of the roadways by said Schedule.
[R.O. 2011 §320.030; Ord. No. 518-01 §1, 9-19-2001]
As used in Sections 304.582 and 304.585, RSMo., and this Section, the term "construction zone" or "work zone" means any area upon or around any highway as defined in Section 302.010, RSMo., which is visibly marked by the Department of Transportation or a contractor or subcontractor performing work for the Department of Transportation as an area where construction, maintenance, incident removal, or other work is temporarily occurring. The term "work zone" or "construction zone" also includes the lanes of highway leading up to the area upon which an activity described in this Subsection is being performed, beginning at the point where appropriate signs or traffic control devices are posted or placed. The terms "worker" or "highway worker" as used in Sections 304.582 and 304.585, RSMo., shall mean any person that is working in a construction zone or work zone, or any employee of the Department of Transportation that is performing duties under the Department's motorist assist program on a State highway or the right-of-way of a State highway.
No person shall exceed the posted speed limit in a construction zone or work zone.
The driver of a motor vehicle may not overtake or pass another motor vehicle within a work zone or construction zone as provided in this Section.
Upon the first conviction or plea of guilty by any person for a speeding violation under either Section 304.009 or 304.010, RSMo., or this Section or a passing violation under Subsection (4) of Section 304.582, RSMo., the court shall assess a fine of two hundred fifty dollars ($250.00) in addition to any other fine authorized by law if the offense occurred within a construction zone or a work zone and at the time the speeding or passing violation occurred there was any highway worker in such zone. Upon a second (2nd) or subsequent such conviction or plea of guilty, the court shall assess a fine of three hundred dollars ($300.00) in addition to any other fine authorized by law. However, no person assessed an additional fine under this Subsection shall also be assessed an additional fine under Subsection (1) of Section 304.582, RSMo., and no person shall be assessed an additional fine under this Subsection if no signs have been posted under Subsection (3) of Section 304.582, RSMo.
The penalty authorized by Subsection (D) of this Section shall only be assessed by the court if the Department of Transportation or a contractor or subcontractor performing work for the Department of Transportation has erected signs upon or around a construction zone or work zone which are clearly visible from the highway and which state substantially the following message: "Warning: Minimum $250 fine for speeding or passing in this work zone when workers are present.".