You notice changes to traffic lights can affect everyone on the road — especially when […] ...

(WHTM/NEXSTAR) – On many traffic signals found throughout the United States, there is a small light that is placed in between or off to the side of the traffic signal lights. Sometimes you see them ...

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.

LED traffic lights save municipalities like Reno millions of dollars, but because they don't emit heat the lights can be obstructed by snow.

Des Moines is experimenting with reflective back plates on traffic lights at 20 high-risk intersections to improve visibility ...