What does the winding road warning sign mean?
A winding road with several bends is ahead. Slow down
This sign warns of a winding road ahead, a series of bends. Slow down and steer smoothly through the curves.
Why the other answers are wrong
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A single sharp right turn is ahead
One sharp turn gets its own sign, with a single bent arrow pointing one way. This arrow swings left and right more than once, which means a run of bends, not one corner.
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The road ahead is closed for detour
Detours are posted on orange temporary condition signs, with markers that guide you back to your normal route. This yellow diamond is a permanent warning about the road itself, here a stretch of bends to slow down for.
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A slippery road is ahead
The slippery pavement warning shows a car with skid tracks behind it, and it applies when the road is wet. This sign shows only the path of the road, so the bends are the hazard.
Quick way to remember
The arrow does not go straight; neither does the road.
Based on the official Ontario MTO Driver's Handbook.
Reading it once is not enough
Drill this question in a scored round and find out what else you are shaky on.
Practise Road Signs: Warnings