Warning Road Sign (W16-5P)
Supplemental Distance Plaque (500 FT) Sign Meaning & Driving Rules
Specifies the exact distance ahead (e.g. 500 Feet) to the hazard or condition indicated on the main warning sign.
Required Driver Action & Right-of-Way Protocol
Begin preparing for the condition immediately; 500 feet passes in just a few seconds at highway speeds.
Detailed Overview & Purpose
The Supplemental Distance plaque (W16-5P) informs drivers of the precise distance before they will encounter the indicated hazard (stop sign, curve, crosswalk, or signal).
Key Standard & Origin: At 60 mph, a vehicle travels 500 feet in approximately 5.6 seconds.
Where You'll Find This Sign
Mounted below diamond warning signs on rural roads and high-speed corridors.
Common Driver Mistakes to Avoid
Misjudging stopping distance and waiting too long to begin braking.
How This Sign Appears on the DMV Knowledge & Road Test
Tests speed-versus-distance perception and stopping distance math.
Legal Penalties and Moving Violations
Failure to slow for conditions carries moving violation citations.
When you encounter the official Supplemental Distance Plaque (500 FT) (W16-5P) on a roadway, what is your legal duty?
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