What should you do?
Stay alert for debris on the road, slow down where visibility is limited, and do not stop under the rock face.
How to recognise it
Yellow diamond with a black cliff shape and small rocks falling from it.
Common confusion
It warns of falling material, unlike the loose chippings sign, which relates to fresh road surfacing.
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.
