ABSTRACT
A growing number of traffic safety studies shows that human error is the major contributing factor in the majority of traffic accidents. In a large study in the US, Treat et al. (1977) found that the leading causes of accidents are improper lookout, excessive speed and inattention. Smiley (1989) concludes that some 90 per cent of all traffic accidents can be attributed to human failure. Brookhuis and Brown (1992) argue that an ergonomic approach to behavioural change via engineering measures, in the form of electronic driving aids, should be adopted in order to improve road safety, transport efficiency and environmental quality.
