As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation. Researchers ...

New research shows that AI in cars might warrant a new, four-light traffic signal that is more efficient. Getty Images/iStockphoto Surely this will complicate the game of red light, green light.

MOLINE -- The city council voted Tuesday to replace all its incandescent bulb traffic signals with longer-lasting LED bulbs despite concerns raised about the wisdom of changing yellow caution lights.

Dothan’s traffic signals will soon burn a little brighter in the minds and pocketbooks of those traveling in or through the city. More than a half-million dollars in federal stimulus funds will go to ...

Thestate Department of Transportationis working to give a massive facelift to every traffic signal in North Carolina. Light-Emitting Diode, LED, traffic signals are slowly being phased in across the ...

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.