Effects of Incorporating the Extended Theory of Planned Behavior in a Mode Choice Model

摘要

To research the systematized impacts of psychological factors on travel mode choice behavior, the paper constructed three multiple indicators and multiple causes (MIMIC) models for motorcycle, bus and car, according to the expanded theory of planned behavior (TPB) including a variety of psychological factors with respect to commuter mode choice behavior. The fitted values of latent variables from estimation of MIMIC as explanatory independent variables were induced into the conditional logit model (CLM), which is often called a hybrid choice model (HCM). The empirical data were collected and used to compare the difference influences of parameters between the traditional discrete choice model (DCM) and HCM. The results indicated that not all of the psychological latent variables have significant effects on mode choice behavior. The outcome of estimation of HCM has a higher degree of fit and much more robust predictions than the traditional DCM without latent variables.