Researchers at North Carolina State University have proposed a fourth traffic light color that could save fuel and make traffic smoother. Here's how it works.

What do you think of a fourth traffic light color being added to traffic signals for self-driving vehicles to help control traffic flow? I get that one day a bunch of connected autonomous cars may ...

LEXINGTON — Lexington's automated traffic-light system, which became fully operational in November after 10 years of installation, is already being credited by town officials with having helped ease ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Fully self-driving cars, despite the claims of some companies, aren ...