What does this sign mean?

Explanation: The sign warning of loose chippings is often accompanied by a plate showing an advisory maximum speed. Stone chippings thrown up by tyres can damage vehicles, and pedestrians, cyclists and motorcyclists are more vulnerable. The loose surface will increase your vehicle's stopping distance and there's an additional risk of skidding.

Category: Band 2 traffic signs and signals

References: Highway Code: Page 113, Know Your Traffic Signs: Page 137