Traffic lights today are controlled by computers and other purpose-built systems, but what did people do before computers were a thing? You may be surprised.

Getting stuck in Baltimore traffic is nothing new, and neither are the city's traffic lights. WBAL-TV 11 News Investigates ...

After a successful trial run of a system that allows devices on emergency vehicles to control traffic signals while on ...

Murrysville officials have had problems in recent years with crashes on Route 22 causing damage to the electrical boxes that control several traffic lights along the highway. The municipality plans to ...

If you're comfortable with the present green, amber, and red traffic lights, be prepared to get uncomfortable. New research suggests that adding a white light will speed up traffic and improve safety ...