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SCRIM is applicable to all surfaced roads where the volume of traffic justifies its use and where the equipment, which is lorry based can travel safely at 50 km/hr.

The results from SCRIM surveys identify those locations where the skid resistance is below investigatory levels and related to the risk of an accident.

The concept behind the standards is that there should be a uniform risk of a wet road skidding accident across the whole network.

The lowest skid resistant aggregates are required on dual carriageways away from junction areas while the highest standards are required on the approach to roundabouts and pedestrian crossings. This approach provides a sustainable policy by targeting the best aggregates to the highest risk areas.

Management of the safety of a network and the control of wet road skidding accidents can be achieved only if the skid resistance of the network is known and those measurements can be related to national standards.

With knowledge of skid resistance, investigation of deficient sites can be undertaken to help reduce accidents, provide continuous improvement in the accident rate and obtain best value.