The performance of alternatives to traditional high friction surfacings

It is the aim of this work to assess the performance of asphalt pavement surfacings utilising aggregates with high Polished Stone Values (PSVs) as alternatives to calcined bauxite high friction surfacing. This report provides details of measurements that were undertaken to assess the skid resistance performance of high PSV surfacings currently in operation on the UK road network. The results are compared to the Investigatory Levels (IL) of skid resistance required for each specific site, and also to the skid resistance that would be required for ‘high-risk’ sites where HFS incorporating Calcined Bauxite is conventionally used.