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Yellow diamond sign with a black arrow in a repeating S shape

Winding Road sign

W1-5 warns of a series of curves ahead.

MUTCD code W1-5 · Warning sign · Source: MUTCD 11th Edition, Section 2C.07

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What does this sign warn you about?

Yellow diamond sign with a black arrow in a repeating S shape
  • A slippery road surface
  • A winding road with several curves
  • A narrow bridge just ahead
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A winding road with several curves

Expect one curve after another. Slow down and stay in your lane.

Source: Manual on Uniform Traffic Control Devices, 11th Edition, Section 2C.07; Arizona Driver License Manual and Customer Service Guide, Section 3, Roadway and Vehicle Knowledge: Turn, Curve and Winding Road Signs (p. 41); Tennessee Comprehensive Driver License Manual, Section B, Chapter 3, Traffic Signs and Signals: Warning Signs - Diamond Shape (p. 38)

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DMV Decoded is an independent guide, not a government agency. Check your state's driver handbook for the signs on its test.