Add Yahoo as a preferred source to see more of our stories on Google. (WHTM/NEXSTAR) – On many traffic signals found throughout the United States, there is a small light that is placed in between or ...

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 ...

A “white light” added to traffic signals could enable self-driving vehicles to help control traffic flow—and let human drivers know what’s going on. In computational simulations, the new approach ...

A city or town doesn't set up its traffic lights horizontally for aesthetics, there is a traffic reason.

The concept of the traffic light actually dates all the way back to the 1860s, where gas-lit signals were placed on the posh streets that lined the Houses of Parliament in London. Of course, back then ...

SCRANTON – In the works for years, plans to upgrade traffic light signals at three busy intersections finally have a green light to move ahead. In recent years, the state Department of ...

(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 ...

PENNSYLVANIA (WHTM) — On many traffic signals found throughout the United States and Pennsylvania, there is a small light that is placed in between or off to the side of the traffic signal lights.