Abstract
The road infrastructure as an interface between designers and road users is discussed. Diagnostic methods for identifying critical situations from a safety viewpoint, bridging the communications gap between road system designers and traffic psychologists, and focusing psychological research on the knowledge and strategies that drivers apply in controlling different driving situations are considered. Progress on designing in-vehicle driving support systems is described. A conceptual framework for the analysis of driver behaviour and methods of analysis are presented. Some examples of analyses of drivers' activity in real driving situations are provided.