Section 4110 - Traffic signals(a) Whenever a flashing red, yellow or green signal is used in a traffic signal or with a traffic sign, it shall require obedience by vehicle traffic as follows: (1) Flashing Red. -- When a red lens is illuminated with intermittent flashes, drivers of vehicles shall stop before crossing the stop limit whether marked by a sign or painted line, but if none, before entering the crosswalk on the near side of the intersection, or if none, then before entering the intersection, and the right to proceed shall be subject to the rules applicable after making a stop as at a stop sign.(2) Flashing Yellow or Green. -- When a yellow or green lens is illuminated with intermittent flashes, drivers of vehicles may proceed through the intersection or pass such signals only with caution.(b) In the event that flashing signals are in place and no lighted indication is visible to an approaching driver, the approaching driver shall reduce speed and prepare to yield to other vehicles in or approaching the intersection. If facing a stop sign, the approaching driver shall stop and proceed as from a stop sign.(c) This section shall not apply at railroad grade crossings. 21 Del. C. 1953, § 4110; 54 Del. Laws, c. 160, § 1; 60 Del. Laws, c. 701, § 13; 67 Del. Laws, c. 46, §72; 70 Del. Laws, c. 186, § 1.;