1. Draft Final Report;Blackburn,1977
2. Pavement in Geometric Design Criteria for Minimizing Hydroplaning;Gallaway;Final Report on Contract No. DOT-FH-11-8269,1977
3. The skidding resistance of roads and the requirements of modern traffic;Giles;Proc. Inst. Civ. Eng.,1957
4. Development of a Wet Weather Safety Index;Ivey,1977