Massachusetts is installing hybrid pedestrian traffic lights, but a UMass study shows many drivers don’t understand how to use them.

Many say the pedestrian-activated signals are confusing — and research shows most drivers don’t fully understand how they ...

Some things are so ubiquitous that it's easy to forget they're designed for a reason. With more than 300,000 traffic lights set up across the United States, it's easy to take how they look for granted ...

Seeing Green, a short film by Chevrolet, celebrates the many kinds of traffic lights that were in operation in the 1930s and explains the mechanics of coordinating lights across a city. Seeing Green, ...

Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...