The analysis of the number of passenger cars and lorries involved in accidents as a function of road

Paper and shortened version presented to the OECD Symposium on Heavy freight verhicles and their effects, Paris, 14-16 November 1977 Also in: Symposium for heavy freight vehicles and their effect. Paris, France on 14th, 15th, 16th november 1977. Reports, Session III: Safety aspects. pp 157-159. Organisation for Economic Co-operation and Development, Paris 1977