Introduction
Ramp metering is a traffic management system used on freeway on-ramps in Utah and many other states. It uses traffic signals to control how quickly vehicles enter the freeway, improving traffic flow and reducing congestion during busy times.
How Ramp Metering Works
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Traffic Signal on the Ramp – As you approach the freeway entrance, you may see a small traffic light (often with only red and green lights).
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One Car at a Time – The signal alternates between red and green, allowing vehicles to merge one at a time or two at a time per lane, depending on the setup.
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When Green, Go – Only go when the light is green, and accelerate smoothly to match freeway speed.
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When Red, Stop – Stop and wait at the red light. It is illegal to run a ramp meter light.
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Merging Safely – Once you’re on the freeway, use your mirrors, check blind spots, and merge into traffic safely.
Why Utah Uses Ramp Metering
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Reduces congestion during rush hour.
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Creates safer and smoother merging.
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Prevents traffic jams from forming at freeway entrances.
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Improves overall freeway speeds.
Tips for Drivers
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Always obey the ramp meter light—it’s enforceable by law.
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Be prepared to stop if the light is red.
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Leave space between vehicles while waiting.
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Accelerate firmly when it turns green to match freeway traffic speed.
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Yield to freeway traffic—merging drivers must find a safe gap.
Takeaway: Ramp metering helps keep Utah’s freeways moving smoothly. By following the signals and merging correctly, you’ll make freeway driving safer for yourself and others.