Samenvatting
This paper begins with an overview of the main issues of the PIARC conferences, divided into two phases: three conferences during the period 1908-1913 and five conferences spanning 1923-1938. This is followed by a sketch of the road safety problem as it was formulated by the main European actors during the Interbellum, also outside PIARC. The author then attempts to explain why the road safety problem could not be solved by PIARC and will suggest the consequences of this 'failure' for the postwar period. For thecovering abstract see ITRD E139491.