Winding Road
warning sign · diamond · yellow
A series of curves is ahead. Reduce speed before entering.
- Visual breakdown
- Yellow diamond with an S-shaped arrow indicating three or more curves.
- Shape recognition
- Diamond with a snaking arrow — more bends than a single-curve sign.
- Color recognition
- Yellow caution, often paired with an advisory speed plaque underneath.
- Memory trick
- The arrow is a snake — you can't out-speed a snake's curves; brake before the head, glide through the body.
- Real-world example
- Mountain roads post this with a 25 mph advisory: that's the tested-safe speed for the curves, not a legal limit.
- Common mistakes
- Braking mid-curve instead of before it, which unsettles the car exactly where grip matters most.
- Quick recall method
- Snake arrow = slow before the curves, not in them.
