Drivers are familiar with red, yellow and green lights. North Carolina State University researchers conducted a study that found adding a fourth light would improve traffic flow at intersections and ...

In order to optimize traffic flow, many autonomous vehicles communicate both with one another and with municipal traffic control systems. Scientists are now suggesting that an extra white light at ...

Studies have shown, repeatedly, that traffic moves faster when vehicles are driverless. Their ability to communicate with each other and traffic control systems makes the whole thing go quickly and ...

Google’s Project Green Light has been implemented at a couple intersections along 15th Avenue Northwest in Seattle’s Ballard neighborhood. (GeekWire Photo / Kurt Schlosser) Next time you avoid sitting ...

Researchers at North Carolina State University say a simple change to intersection signals could make daily traffic work better as more autonomous vehicles hit the road. Their idea is to add a white ...

Cars that drive themselves are no longer just a concept you'd see in sci-fi movies imagining the near future. Companies like Waymo are already using self-driving cars, and you can ride in a robotaxi ...

In preparation for the 1984 Olympics, Los Angeles wanted to improve traffic flow and make moving around the city easier for athletes and visitors. To achieve that, the city developed the Automated ...

Urban mobility problems demand clarity. Intersections remain the most common sites for crashes, congestion, and violations.

Among its features is the "Green Wave" function which will adjust green light time based on traffic.