A 10-second shift between two street lights was all it took to reduce congestion around Atlantic Avenue, city officials say.

When sodium vapor street lamps were replaced by LEDs, soft yellow light was replaced by crisp white. But the change to purple ...

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

After six people were shot, two of them fatally over the holiday weekend, some Minneapolis residents called on the city to ...

The city of Groveland is considering a plan that would replace hundreds of street lights to maintain the city's status as a ...