Structural mechanism of modal choice based on the linked structure of trip purpose and transportation choice

The behavior of modal choice with regards to taking a trip is greatly influenced by the transportation choices of preceding trips. Also, the sequential trips of an individual are related to one another, and are statistically represented by the connecting structure of the purpose of each trip. Therefore, the structural mechanism of traffic demand can be understood by considering the urban activities of individuals. This study aims to investigate a new approach of the modal choice model by analyzing the sequential mechanism of trip purpose and transportation choice. The similarities and dissimilarities of travel activities with regards to personal attributes are analyzed. Next, the relationship of trip purpose and transportation choice between an intended trip and the preceding trip is investigated using a cross table. Modal choice models are constructed by considering the mode of the preceding trip and are applied based on the structural mechanism of the purpose of sequential trips with regards to personal attributes. The characteristics of the proposed modal choice model are also discussed.