A BEHAVIORAL ANALYSIS OF AUTOMOBILE OWNERSHIP AND MODE OF TRAVEL: VOLUME 4 - WORK MODE CHOICE MODELS WITH CARPOOL MODE

This report describes the development of disaggregate behavioral work mode choice models which extend the previous joint automobile ownership/work mode choice models (1) to include three modes - drive alone, shared ride or carpool, and transit - and (2) to include all household workers, not just primary workers or breadwinners as in the previous models. Specific models presented in this report are: (1) a binary (car/transit) work mode choice model for all workers, (2) three different specifications of a three-mode work mode choice model for all workers, and (3) a joint auto ownership/primary worker work mode choice model with three mode alternatives and three auto ownership levels. All models are estimated using 1968 Washington, D.C. Home Interview Survey data. All models are logit models estimated using maximum likelihood estimation techniques. Conclusions on the applicability of these models and recommendations for further research and development are also reported in this volume.