Warning Road Sign (W7-1b)
Hill with Distance Plaque Sign Meaning & Driving Rules
Warns of a steep descent that extends for a specified distance (e.g., 'NEXT 4 MILES').
Required Driver Action & Right-of-Way Protocol
Select low gear and maintain engine braking for the entire posted distance.
Detailed Overview & Purpose
The Hill with Distance sign (W7-1b) communicates both the presence of a steep grade and its duration in miles. Long downgrades require sustained engine braking discipline to prevent brake system failure.
Key Standard & Origin: Runaway truck ramps are positioned along these extended distance grades to catch vehicles with burned-out brakes.
Where You'll Find This Sign
Long mountain descents and interstate summit passes.
Common Driver Mistakes to Avoid
Relying solely on friction brakes for multi-mile descents until brakes overheat and fail.
How This Sign Appears on the DMV Knowledge & Road Test
Tests mountain driving protocols and brake fade prevention.
Legal Penalties and Moving Violations
Reckless driving citations apply if brake failure causes a collision.
When you encounter the official Hill with Distance Plaque (W7-1b) on a roadway, what is your legal duty?
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