Samenvatting
The basic purpose of this study was the development of a criterion of safe driving through a study of specific automobile driving behaviours observed without the drivers knowledge and to determine the degree to which it could predict accident involvement. The problems of reliability of observation and recording are discussed. It appears that samples of normal driving patterns such as those captured in these studies either on films or on observational checklists are somewhat predictive of future accident potential but there is a large degree of error.