What should you do?
Reduce speed and hold the steering firmly to stay in control as the suspension works over the bumps.
How to recognise it
Yellow diamond with a black road profile topped by several rounded bumps.
Common confusion
Similar to the uneven road sign; both mean an irregular surface, so slow down for either.
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.
