Uneven road ahead
A red triangle with a wavy horizontal line warns of road surface defects — potholes, sunken manholes, settled patches, or a generally rough stretch. Reduce speed, hold the wheel firmly, and try to avoid swerving suddenly to dodge a single defect (you may swerve into another vehicle).
- Shape
- Triangular
- Background
- White
- Border
- Red
- Primary symbol
- Other
- Diagram reference
- 556.0
Where you'll see this sign
Areas with subsidence, after winter freeze-thaw damage, on older A roads, and approaching utility-company excavations.
Test yourself on UK road signs
How well do you really know your road signs? New Driver Hub's free mock theory test pulls from official-style DVSA questions and tells you which signs you keep getting wrong.
