Skid Resistance on National Roads

TII commissions an Annual Sideway-force Coefficient Routine Investivation Machine (SCRIM) Survey of the National Primary and Secondary road network in one direction, alternating the direction of survey each year. The data reported is the Characteristic Scrim Co-efficient (CSC) from the Slow-Lane.The information provided is summarised in 100 meter intervals and is referenced to GPS ITM co-ordinates.SCRIM Survey data is currently available from years 2012.