Reverse curve sign
A yellow diamond with an S-shaped arrow. It warns of two curves ahead, the first bending one way and the second bending back.
Rules vary by state and country. This explains the sign's standard meaning in the U.S. Manual on Uniform Traffic Control Devices; it isn't legal advice.
How to read it
The MUTCD uses it where two curves in opposite directions are less than 600 feet apart, in place of two separate Curve signs. Florida's example curves right, then left. For two sharp turns, the Reverse Turn sign (W1-3) is used instead; for three or more curves, the Winding Road sign.
More road signs
Sources
- MUTCD 2009 Edition, Chapter 2C: Warning Signs and Object Markers, MUTCD 2009, Part 2, U.S. Federal Highway Administration, Section 2C.07
- Pennsylvania Driver's Manual, Chapter 2: Signals, Signs and Pavement Markings, Pennsylvania Department of Transportation, p. 13
- Official Florida Driver License Handbook, rev. 08/2023, Florida Department of Highway Safety and Motor Vehicles, p. 50
Last reviewed September 25, 2026 by Rory Hansen. How we research