Abstract
This paper deals with various aspects of behavioural responses to road traffic congestion. A conceptual framework is presented for the various types of behavioural responses of different actors such as travelers, firms, and authorities, towards changing congestion conditions. These responses include changes in life style, location behaviour, activity behaviour, travel behaviour and driving behaviour. Empirical evidence is given for the extent of responses of individual travelers for a subset of choice dimensions. Special attention is given to responses in the time domain. (A)