Warning Road Sign (W7-1)
Steep Hill / Grade Ahead Sign Meaning & Driving Rules
Warns of a steep downward hill or grade ahead where vehicles can gain dangerous momentum and overheat brakes.
Required Driver Action & Right-of-Way Protocol
Shift to a lower gear before starting down the hill. Use engine braking as your primary speed control and apply brakes only intermittently.
Detailed Overview & Purpose
The Steep Hill sign (W7-1) warns of a sustained downgrade that requires special speed control techniques. On steep descents, gravity continuously accelerates vehicles, and continuous braking causes brake fade or total failure.
Shift into a lower gear BEFORE starting down the hill to use engine compression braking. Heavy trucks, RVs, and passenger cars should all observe lower descent speeds.
Key Standard & Origin: Continuous braking on long mountain grades can heat brake rotors past 1,000°F, boiling brake fluid and causing complete loss of braking power.
Where You'll Find This Sign
Mountain passes, canyon routes, and highway descents exceeding 5–6% grade.
Common Driver Mistakes to Avoid
Riding the brakes the entire way down a mountain instead of downshifting into a lower gear.
How This Sign Appears on the DMV Knowledge & Road Test
Essential knowledge for both standard driver licenses and CDL exams.
Legal Penalties and Moving Violations
Runaway vehicle incidents caused by brake overheating carry severe reckless driving penalties.
Sign Variations & Related Types
Hill with Percentage Plaque
Includes a plaque specifying the grade percentage (e.g., '8% GRADE').
When you encounter the official Steep Hill / Grade Ahead (W7-1) on a roadway, what is your legal duty?
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