This paper analyses complicated driver attitude and behaviour relations in the context of the recurrent problem of speed choice. Some findings of previous studies of these attitudes and driver behaviours are summarised. Speed choice appears as a highly complicated behaviour. The speed limit seems to influence intentions and attitudes as an independent external factor. The beliefs determining speed choice depend largely on situational factors. The correlations found between model variables generally agree with predictions, making it possible to identify major motivational factors influencing target behaviour. There are many problems involved in measuring attitude-behaviour relationships. Various theoretical problems arise, for example, whether attitude models are suitable for studying behaviours, like speed choice, which may well not consist of discrete actions. There is as yet very little evidence that the assumed causal links between beliefs, attitudes, and behaviour are practically relevant to traffic problems. Road user behaviour responds most to the manipulation of expected outcomes. An enormous amount of evidence suggests that behaviour-oriented approaches can modify road user behaviour very effectively. For example, in introducing the breathalyser test for drink-driving, attitude change followed behavioural change. This was contrary to predictions made using the Fishbein and Ajzen model of reasoned action.
Abstract