You may have heard the term "Green Wave" in relation to traffic signals. Here's what it means, why cities do it, and what it ...

Today's traffic lights can be controlled by anything from standard traffic control computers to highly advanced AI-driven computer systems that are so "smart" they can predict what's going to happen ...

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.

THESE CHANGES ARE DESIGNED TO KEEP PEOPLE SAFE. WHEN YOU’RE TRYING TO CROSS PHILADELPHIA STREET HERE IN INDIANA AND YOU HAVE THE LIGHT TO CROSS, THAT DOESN’T MEAN YOU’RE NECESSARILY SAFE. TRAFFIC ...