Warning Road Sign (W17-1)
Speed Hump Ahead Sign Meaning & Driving Rules
Warns of a traffic-calming speed hump in the roadway ahead designed to enforce speeds of 15–20 mph.
Required Driver Action & Right-of-Way Protocol
Slow down to 15–20 mph before crossing the speed hump.
Detailed Overview & Purpose
The Speed Hump sign (W17-1) warns of a raised roadway section installed in residential and school areas to physically force vehicle deceleration. Unlike sharp speed bumps in parking lots, speed humps are wider and designed for 15–20 mph transit.
Key Standard & Origin: Speed humps are typically 3–4 inches high and 12–14 feet long, engineered to be driven over comfortably at 15–20 mph.
Where You'll Find This Sign
Residential streets, school campuses, hospital zones, and traffic-calmed neighborhoods.
Common Driver Mistakes to Avoid
Speeding over the hump, which damages vehicle shocks, alignment, and undercarriage.
How This Sign Appears on the DMV Knowledge & Road Test
Tests traffic calming devices and neighborhood safety rules.
Legal Penalties and Moving Violations
Reckless driving over traffic calming devices carries moving violation citations.
When you encounter the official Speed Hump Ahead (W17-1) on a roadway, what is your legal duty?
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