If you’ve seen talk about a white traffic light or images of a signal with an unfamiliar fourth color, you’re not imagining it. With everything drivers already pay attention to at intersections, ...

Early traffic lights had only red and green, which unsurprisingly made intersections rather chaotic. Who invented the yellow ...

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

There's a new pedestrian crossing signal in town. Rather than relying on long-standing laws requiring motorists to stop for pedestrians in a crosswalk, the Pedestrian Hybrid Beacon uses yellow and red ...

Drivers in certain areas of Florida like Gainesville, Fort Myers, Orlando, and Collier County, have begun noticing odd little blue lights mounted on the top of some traffic signals. What are they ...