Activity-Travel Behavior Analysis Based on Structural Equation Model

Traveler' process of decision-making is very complicated, which influenced by many factors. Based on the analysis of activity based travel demand theory, the path diagram is given, which describes the decision processes of travelers. Analysis the influence factors from the aspects of socio-demographics, activities participation and travel behaviors, the endogenous and exogenous variables of model are defined and structural equation model (SEM) is established. Based on the activity-travel dates in 2003 of Changchun, the direct, indirect and total effects of this model system are verified using AMOS software, by which the joint relationships among socio-demographics, activities participation and travel behaviors can be better captured and understood. These fundamental works provided some knowledge to further process in the research of the traveler's behavior and provide some valuable advises to transportation programming and management.