What should you do?
Slow down before the dip, as your view of the road beyond may be hidden and the car may bottom out or lift.
How to recognise it
Yellow diamond with a black road profile that has a single downward curve in the middle.
Common confusion
The opposite of the sharp rise sign, which shows a hump such as a hump-back bridge.
Explanation written by the My Driving Test editorial team using the Department of Transport Traffic Signs Manual conventions and the RSA Rules of the Road.
