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?

PETAL, Miss. (WDAM) - To get in and out within a reasonable time. That’s most drivers’ goal when they get on the highway. But when there’s a rush of traffic, a long light can be enough to drive you ...

New Orleans commuters who drive along South Rampart Street through its intersection with Canal Street may have noticed the traffic light's abrupt cycle — switching from green to red in mere seconds. A ...