Hello,

Contractor walks across a large staff car park, while looking at a notepad, falls over, and then blames the car park surface for the fall. (says it was uneven). Surface inspected and there is a very small amount of visible wear of the car park surface in various spots, although there are no dips, cracks, craters, potholes, or anything of significance that you could reasonable expect to cause an actual hazard.

The wear in the few small areas of the car park is visible to the eye but the difference in the worn and none worn surface is probably less them 1mm in depth.

How do you actually determine when an uneven surface becomes hazardous? Is there a calculation in terms of actual measured depth of holes/ or surface variation?

Cheers