Engineers are exploring a future white phase on U.S. traffic lights, showing how autonomous vehicles could coordinate movement at intersections.

You might think traffic light systems are fairly basic. After all, electric traffic signals first appeared all the way back in 1914. However, they have advanced significantly since their inception, ...

You’ve trusted the same three traffic light colors your entire driving life. Red, yellow, green: it’s simple enough… until it isn’t. Behind every signal on U.S. roads sits a thick federal rulebook ...

HARRISBURG, Pa. — State funding will go towards traffic signal upgrades in the Lehigh Valley and Berks County. 57 municipalities across the Commonwealth will receive nearly $30 million through the ...