Successive days, related travel behaviour?

This paper investigates the relationships between the travel behaviour on successive days of a week. It has an explorative character, because the Mobidrive data allow this analysis for the first time. The hypotheses and the structure of the models are based on the suggestions of the literature and on the descriptive analysis of the data. Three different models are developed using the results of the continuous six-week travel diary and structural equation modelling (SEM). In the models person- and household-variables are exogenous and variables describing travel behaviour are endogenous. One model contains the number of trips per day (the days of one week and the following Monday) as endogenous variables, one model the distances travelled per day and one model the number of trips made by the female and male partner of a couple or family. The results show that there are relationships between the days. The impact of the previous day and within limits the impact of the previous Monday on a given day, the differences between the weekdays and the weekend and the small influence of the socio-demographic variables on travel behaviour are the most important findings. Additionally dependencies between the partners in a household could be demonstrated.