Activity-Based Modeling as a Tool for Better Understanding Travel Behaviour Yoram Shiftan, Technion Moshe Ben-Akiva, Massachusetts Institute of Technology Kimon Proussaloglou, Cambridge Systematics, Inc. Gerard de Jong, Rand Europe Yasasvi Popuri, Cambridge Systematics, Inc. Krishnan Kasturirangan, Cambridge Systematics, Inc. Shlomo Bekhor, Technion IATBR Conference paper Session XXX Moving through nets: The physical and social dimensions of travel 10 th International Conference on Travel Behaviour Research Lucerne, 10-15 August 2003