Structural Equation Modeling For Travel Behavior Research

Structural equation modeling (SEM) is an extremely flexible linear-in-parameters multivariate statistical modeling technique. It has been used in modeling travel behavior and values since about 1980, and its use is rapidly accelerating, partially due to the availability of imporved software. The number of published studies, now known to be more than fifty, has approximatley doubled in the pas three years. This review of SEM is intended to provide an introduction to the field for those who have not used the method, and the compendium of applications for those who wish to compare experiences and avoid the pitfall of reinventing previous research.