Traffic lights follow the same green-amber-red order during the day, but at night, some of them switch to flashing certain colors. Why does that happen?

MADERA COUNTY, Calif. (KSEE/KGPE) – Traffic signals at the intersection of Highway 41 with Avenue 15 and Highway 145 in Madera County will be flashing red, Caltrans and Cal Valley Construction ...

Motorists who’ve grown accustomed to traffic lights in central Connecticut that flash either amber or red in the late-night hours should brace for a change over the next couple of years. At more than ...

NORTH CAROLINA, USA — North Carolina drivers, get ready for changes at intersections when traffic lights aren't working as normal. The NC Department of Transportation (NCDOT) says it is modifying ...

MURRIETA, CA — Red lights flashed at several Murrieta intersections Wednesday morning, causing traffic delays, the police department shared. The outage was due in part to the Power Safety Shutoffs.