Warning Road Sign (W7-3a)
Runaway Truck Ramp Ahead Sign Meaning & Driving Rules
Advance warning that an emergency escape ramp for runaway vehicles is located 1 mile ahead on the right or left.
Required Driver Action & Right-of-Way Protocol
Keep the escape ramp approach clear. Never park or stop near a runaway truck ramp.
Detailed Overview & Purpose
The Runaway Truck Ramp Ahead sign (W7-3a) gives advance notice to drivers experiencing brake failure that an emergency escape ramp is coming up. Runaway ramps use deep gravel, sand beds, or gravity slopes to safely stop out-of-control vehicles.
Key Standard & Origin: Never park or stop in a runaway truck ramp entrance — an out-of-control truck may need it at any moment.
Where You'll Find This Sign
Placed 1 mile and 1/2 mile before truck escape ramps on mountain downgrades.
Common Driver Mistakes to Avoid
Passenger cars parking in escape ramps to take photos or rest, blocking emergency escape paths.
How This Sign Appears on the DMV Knowledge & Road Test
Tests purpose and safety rules regarding highway runaway truck ramps.
Legal Penalties and Moving Violations
Parking in a runaway truck ramp carries severe criminal citations and vehicle impoundment.
When you encounter the official Runaway Truck Ramp Ahead (W7-3a) on a roadway, what is your legal duty?
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