Even so, NoTraffic’s technology can change the way traffic moves through cities, making green lights last longer for transit, for example, or even prioritizing electric vehicles over gas guzzlers.

ELIZABETHTON, Tenn. (WCYB) — Those traveling in Elizabethton will soon notice a different traffic pattern. The city is removing a traffic light at East E. Street and North Sycamore Street. This ...

The yellow light would not come into play until the 1920s. William Potts, who was a police officer in Detroit, is credited for designing the first three and four-way colored traffic lights.

Garrett A. Morgan & The 3-way traffic light Did you know an African American man by the name of Garrett A. Morgan invented the three-way traffic signal back in 1923?

A replica of Garrett Morgan’s three-way traffic signal invention from 1923 on display at the Western Reserve Historical Society in Cleveland. Garrett Morgan would go on to invent a safety hood, a ...

Some traffic light controllers upload that data to UDOT’s servers in real time; in others, they upload it every 10 or 15 minutes. That’s a lot of data when you multiply it by the 2,000 or so ...

The idea to add the yellow light came from railroads, which were already using three lights. It would become a standard for vehicle traffic by the next decade. That first three-color, four-way ...

A traffic signal removed at 9th Street and 23rd Avenue may be just the start of the city removing other lights it deems unnecessary.