Abstract
The purpose of this study is to reveal the relationship between people’s attitudes and their choice of travel behaviour and BMI. For the analysis, we used participants’ satisfaction of transport environment, motives for driving a car, and the annual frequency of 6 travel modes use, and the BMI, which were asked in the Japanese Nationwide Person Trip Survey in 2015 (males: N = 4,707, females: N = 2,678). Comparing models obtained from Structural Equation Modeling between males and females, three types of travel behaviours affected BMI for males: car use, bus use and walking. On the other hand, for females, only railway use had effects on BMI. In addition, for males, the transport environment and motive for driving a car did not directly affect BMI, and only travel behaviour directly affected BMI. However, among females, environmental factors such as “usability of the car” and emotional index of motive for driving such as “I like driving the car” had a direct effect on BMI.