A 10-second shift between two street lights was all it took to reduce congestion around Atlantic Avenue, city officials say. Why it matters: Boston's efforts to optimize street lights to help move ...

Traffic calming, safety improvements for pedestrians, bicyclists and motorists, alike. These are some of the investments in ...

A: I was initially puzzled by this question. The reason many pedestrians think they can cross the street when the light is ...

Before we’re old enough to even see over the dashboard, we learn that green means go and red means stop. This internationally recognized traffic light color system is standard in most of the world.