Early traffic lights had only red and green, which unsurprisingly made intersections rather chaotic. Who invented the yellow ...

Late at night, stopped at a traffic light, a driver notices lights on all lanes of travel except their own appear to change ...

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 ...

Communities across south-central Pennsylvania are among those set receive hundreds of thousands of dollars in funding to ...

A nearly $30 million investment will go to communities all across Pennsylvania as part of the Green Light-Go Program.

How smart traffic lights work Alexandria transportation engineer Ryan Knight helped explain how adaptive traffic signals work. “If there’s a platoon of vehicles coming from the intersection across the ...

OTTAWA — The region’s cold snap may have left some hesitant about working out in the elements over the past few weeks, and that apparently included some traffic light control panels. Earlier in the ...

Efficient traffic management in urban areas remains a significant challenge as vehicle density grows and infrastructure ...

NORTH CAROLINA, USA — North Carolina drivers, get ready for changes at intersections when traffic lights aren't working as normal. The NC Department of Transportation (NCDOT) says it is modifying ...

Bibb County and the Georgia Department of Transportation work to replace a traffic signal, which was knocked over in a crash ...