Road design, human behaviour, and road accidents : towards a `learning design community'. Paper presented at the international conference `Road safety in Europe', Birmingham, England, September 9-11, 1996.

This paper discusses a number of unsolved problems in the field of road design (i.e. geometric design), human behaviour and road safety, particularly concerning the operationalisation of the existing design principles for a safe road network in terms of concrete road design in existing circumstances. Some proposals for an agenda for the future are put forward.