About 200 traffic signals on Route 355 were out of sync Wednesday morning, creating a build-up of traffic just north of the Capital Beltway during rush hour. Between 15,000 and 53,000 vehicles travel ...

Traffic lights are both common and controversial. From a city that only allowed green lights for drivers staying inside the speed limit, to the ethics of turning right on red, there are a ton of ways ...

The concept of the traffic light actually dates all the way back to the 1860s, where gas-lit signals were placed on the posh streets that lined the Houses of Parliament in London. Of course, back then ...