If you're driving between states this holiday season, watch out for speed limits different than you're used to.

The ordinance affects a stretch of San Geronimo Valley Drive where four teenage girls were killed and two others injured in ...

The new RAPID Act would permit derestricted daytime speeds on rural interstates, but only after passing detailed safety and ...

Texas is rolling out digital speed limit signs that adjust in real time to weather, traffic, and hazards, with new rules ...