LED signal lights generally carry a price tag several times higher than incandescent traffic signal bulbs. However, that hasn't stopped many cities from replacing their incandescent lights with LED ...

I must be penny-wise and pound-foolish. After all, somehow, the small gripes that cost me a few seconds always end up turning into massive research projects. My article in February on Salt Lake City ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — Heading into Labor Day weekend, ...

As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation. Researchers ...

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 ...

MINNEAPOLIS — It lasts mere seconds but can feel like minutes. Getting stuck at a red light, especially with no traffic around, is frustrating at times. We wanted to learn: How are traffic lights ...