Winding Road Ahead Sign - Meaning, Usage & Safety Tips #1982463 (License: Personal Use)

The image shows a standard U.S. MUTCD (Manual on Uniform Traffic Control Devices) warning sign: a yellow diamond with a black, S-shaped arrow pointing upward, indicating a series of sharp curves ahead. Drivers should reduce speed, increase following distance, and avoid sudden maneuvers when encountering this sign. It is typically placed 250-700 feet before the first curve on rural or mountainous roads.

Used on highways and rural roads to warn motorists of upcoming hazardous curves; matches user intent for driver education, traffic sign recognition, or road safety content.