Road humps are raised sections of carriageway designed to physically force vehicles to slow down.
This sign gives advance warning so drivers can reduce speed smoothly rather than braking sharply at the last moment.
What this sign means
The triangular sign shows a black rounded hump shape on a white background, indicating a series of humps in the road ahead.
It may be accompanied by a supplementary plate showing the length of the affected road or the distance to the first hump.
What to do when you see it
Ease off the accelerator early and approach each hump at a controlled, steady speed.
- Slow down gradually rather than braking sharply on the hump itself
- Keep both hands on the wheel to maintain control over the bump
- Check for cyclists who may swerve to avoid the humps
- Maintain a reduced speed for the full length of the humped section
How this sign is tested
You may be asked to recognise this sign among other warning signs, or to state the appropriate action when approaching road humps.
Questions often link this sign to safe speed choices in built-up areas.
Common mistakes
A common error is treating the first hump as the only one and speeding up again too soon, when several may follow.
Some drivers straddle the hump or swerve around it, which can be dangerous and is not the safe response.
Test yourself on this one
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Practise road sign questionsFrequently asked questions
What does the road humps ahead sign show
A red triangle with a black rounded hump shape, warning of speed humps built into the road surface.
Should I speed up between humps
No, maintain a steady, reduced speed throughout the humped section rather than accelerating and braking repeatedly.
Are road humps the same as rumble strips
No, road humps are raised sections of the road, while rumble strips are grooved surfaces that create noise and vibration.