1. Cairney, P (1997). “Skid resistance and crashes: a review of the literature”. Research report ARR 311, ARRB Transport Research, Vermont South, Vic.
2. Roe, PG, Parry, AR & Viner, HE 1998, High and low speed skidding resistance: the influence of texture depth, report 367, Transport Research Laboratory, Crowthorne, UK.
3. Rizenbergs, R.L., J.L. Burchett, and L. A. Warren (1977). “Relation of Accidents and Pavement Friction on Rural, Two-Lane Roads”. Transportation Research Record 633, TRB, National Research Council, Washington D.C., pp. 21-27.
4. Giles, CG, Sabey, BE & Cardew, KHF (1962). “Development and performance of the portable skid resistance tester”. ASTM Special Technical Publication No. 326, pp. 50-74.
5. Gordon, RG (1978). “Johannesburg Municipality skid resistance experiment”, cited in Coster, J 1987, “A literature survey investigation of investigations performed to determine the skid resistance/accident risk relationship”. Technical report RP/37, National Institute for Transport and Road Research, Pretoria, South Africa.