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?

If you’ve travel on Interstate 95 in Miami-Dade and Broward, you’ve probably seen traffic lights flashing red and green on some highway entrance ramps. Purpose: These signals, installed by Florida ...

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 ...

Phoenix area drivers are familiar with freeway entrance-ramp meters that show alternating green and red traffic lights during weekday rush hours. But now, some of the red lights on Interstate 17 ramp ...

North bound drivers on Highway 195 will soon have a new light to stop at before merging onto eastbound Interstate 90. The Washington Department of Transportation has been installing a stop-and-go ramp ...

PHOENIX — Drivers may be tempted to blow through those pesky traffic flow lights at on-ramps along the Interstate 17, but officials with the Arizona Department of Transportation said that those lights ...