The study focuses on drivers' statements about their behaviour, knowledge and attitudes. A large database was conducted from responses to a questionnaire survey of drivers using the car ferry from Holyhead to Dublin in late July 1989. An attempt is made to identify characteristics of those included whose behaviour might be considered risky. It is admitted that the sample was biased due to the sampling conditions. One third of the respondents had travelled more than 250 miles and two thirds more than 100 miles to reach the ferry. Over half had travelled more than four hours and one third for more than six hours. Results showed a group of drivers who hurry when there is no need for them to do so and appear to set time-arrival targets and high average speeds. Drivers who are concerned with speed and time-saving appear to be at risk. A high percentage of drivers questioned were not aware of fatigue-related problems and had not heard of any accidents caused by fatigue. Cluster analysis suggested that there was a group of motorists with risky behaviour in relation to fatigue and to drinking alcohol before the journey. They also tended to eat well and drive less miles/year than average.
Abstract