A.   Basic Rule And Maximum Limits:
      1.   Any person driving a vehicle on a street shall drive the same at a careful and prudent speed not greater than nor less than is reasonable and proper, having due regard to the traffic, surface and width of the highway, and any other condition then existing; and no person shall drive any vehicle upon a highway at a speed greater than will permit him to bring such vehicle to a stop within the assured clear distance ahead.
      2.   Except when a special hazard exists that requires lower speed for compliance with subsection A1 of this section, the limits specified in this section or established as hereinafter authorized shall be maximum lawful speeds and no person shall drive a vehicle on a highway at a speed in excess of such maximum limits, as follows:
         a.   Twenty five (25) miles per hour on any street or adjacent to any school where "school zone" has been designated by appropriate signs at the times posted on said school zone signs.
         b.   Twenty five (25) miles per hour on other streets and on streets adjacent to schools at other times than that specified by the school zone sign; provided, that the Board of Commissioners, by motion or resolution, may reduce or increase this speed limit, and when it does so, appropriate signs shall be placed on such streets or parts of streets indicating the lower or higher speed limit. (Ord. 856, 3-12-2001)
   B.   Speed Regulation Changes: The Board of Commissioners may, by resolution rather than by ordinance, change any speed regulation or traffic regulation with respect to any street, alley or highway. (2013 Code)