You may have noticed some traffic lights with a white light that works independently of the others. They're not for normal cars; here's what they're for.

KNOX COUNTY, Tenn. — There are 91 traffic signals in Knox County with more on the way. Have you ever wondered how those lights know when to change and who makes sure they work? In part, it's up to ...

STATEN ISLAND, N.Y. -- A new set of traffic signals might soon simplify one of Staten Island’s most complex intersections — once they’re operational. The new signals can be found at the intersection ...