You may have noticed some traffic lights with a white light that works independently of the others. They're not for normal ...

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

RICHMOND, Va. (WRIC) — The City of Richmond’s Department of Public Works has installed a new traffic signal device on South Belvidere Street at Rowe Street in support of the Vision Zero initiative. A ...

Those blue lights above traffic signals aren’t decorative. Here’s what they’re for and why more cities are installing them. Blue confirmation lights help police spot and enforce red-light violations ...

Every time we stop at a red light, wait patiently for green, or slow down on yellow, we’re participating in a system that quietly keeps billions of people safe. But have you ever wondered who invented ...