Whenever flashing red or yellow signals are used, they shall require obedience by vehicles, vehicular traffic, as follows:
(A) Flashing Red (Stop Signal): When a red lens is illuminated by rapid intermittent flashes, drivers of vehicles shall stop before entering the nearest crosswalk at an intersection or at a limit line when marked, or if none, then before entering the intersection and the right to proceed shall be subject to the rules applicable after making a stop at a stop sign.
(B) Flashing Yellow (Caution Signal): When a yellow lens is illuminated with rapid intermittent flashes, drivers of vehicle may proceed through the intersection or post such signal only with caution. (M.C. 1962, sec. 18.106)