Abstract
Promising ways of monitoring the state and performance of drivers are explored to be used in different advisory, tutoring and enforcement systems improving driver behaviour and traffic safety. Furthermore, advisory and semi-automatic co-driver systems for assistance in operational, tactical and strategic tasks are investigated, including principles for the design of efficient human machine interfaces. Beneficial safety effects are expected, provided the underlying technology can be made to work in real traffic. Finally, methodology and guidelines useful in the system development and assessment are produced. (A)