TRAFFIC SIGNAL BLACKOUT—If all traffic signal lights are not working, treat the intersection as a four-way stop and observe the right-of-way rules.
FLASHING RED—A flashing red signal light means exactly the same as a stop sign: STOP! After stopping, proceed when safe and observe the right-of-way rules. Be careful as many times the opposite lanes of travel will have a flashing yellow light and are not required to stop.
FLASHING YELLOW—A flashing yellow signal light warns you to be careful. Slow down and be especially alert.
