As you begin to enter a California highway, you might encounter a ramp meter telling you when you can — or cannot — merge without stopping. What are the rules when those lights are active at on-ramps?

SPOKANE, Wash. — Spokane is getting its first ever Ramp Meter to help control traffic flow at the Highway 195 and Interstate-90 Interchange. Washington State Department of Transportation said the Ramp ...

Colorado Springs drivers will get a little help merging onto the freeway from South Academy Boulevard. A ramp meter on South Academy to northbound Interstate 25, which will allow one car at a time to ...

Q: Alfred Velasquez of San Bernardino asked what the red light on the back side of the metered freeway ramp light is for. “I see it after entering the freeway using a metered light. Why have a red ...