Samenvatting
The research plans executed in 1987 in the project "Judgement of risk and decisions of traffic participants" are presented in this report. In 1987, this line of research was continued by directing attention to two aspects: an extension of the registration system and a study into the reliability and validity of the classification system. In the experimental car a computer system was installed measuring five times per second a number of relevant parameters of driving task performance (speed, steering angle, brake, clutch, accelerator, gear- lever).