The IATBR conference proceedings series has a history of over 30 years and is widely read by researchers, practitioners and graduate students in the field of transportation and urban planning in general, and in travel behaviour analysis in particular. It is the only series of conference proceedings that comprehensively reviews, synthesizes, and identifies research needs and future research directions for the respective sub areas of the travel behaviour research field and presents up-to-date, state-of-the-art assessments by distinguished authors. This volume of the 11th International Conference on Travel Behavior Research, held in Kyoto, Japan, in August 2006, examines key issues and emerging trends in the expanding field of travel behavior. These proceedings contain: the keynote speeches of Professor John Urry of Lancaster University (sociology) and Professor Masahisa Fujita of (then) Kyoto University (economics); workshop resource papers by distinguished authors in nine subject areas; synthesis papers (with a focus on Asian developments); and 16 research papers selected from presentation sessions. All papers, including the workshop reports, were reviewed by at least two referees.