The city of Roswell is installing emergency vehicle preemption technology at all 107 of its traffic lights. The city’s system by Alpharetta-based Applied Information speeds up emergency response times ...

Officials hope the new technology will save seconds and ultimately, lives.

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.

FINALLY! The dangerous "blinking light" intersection on Highway 93 is getting a proper traffic signal after 6 fatal crashes ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.