Red and green traffic lights have been around since the 1800s, when British traffic officers used to rotate gas lamps that burned red and green to control the movement of mostly horse-drawn vehicles.

Red-light cameras don’t reduce the number of traffic accidents or injuries at intersections where the devices are installed, according a new analysis by Case Western Reserve University. Touted by ...

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

If it seems like you're spotting more red-light cameras holding silent sentry over busy Redding intersections, you're right. The white, shipping-box sized cameras meant to deter driving scofflaws have ...

Modern traffic light technology isn't just a simple sequence of red, yellow, and green. It's a complex detection system designed to manage traffic flow based on real-time demand. The very first "smart ...

Dear Answer Man: What is it with this town? Every traffic light seems designed to create more traffic jams than they solve. Who is in charge of timing the lights, and when will they fix the ...

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 ...