Those blue lights above traffic signals aren’t decorative. Here’s what they’re for and why more cities are installing them. Blue confirmation lights help police spot and enforce red-light violations ...

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...

Across the United States, drivers are looking up at intersections and noticing a new, unfamiliar glow: small blue lights perched near traditional red, yellow and green signals. They are not decorative ...

Miami police and Miami-Dade use steady blue or blue-red 'cruise' lights for visibility. Solid, nonflashing lights do not require motorists to pull over or clear ...

Many motorists seem to treat traffic lights as optional, barreling through red lights without a care in the world. In a bid to clamp down on red light runners, authorities in Florida have started ...