Skip to main content

Research Repository

Advanced Search

Is travel demand insatiable? A study of changes in structural relationships underlying travel

Susilo, Yusak O.; Kitamura, Ryuichi


Yusak O. Susilo

Ryuichi Kitamura


Stability in travel over time is examined in this study, and the source of observed instability is decomposed into: change in socio-demographic and other contributing factors, and change in structural relationships underlying travel. As a tool for this analysis, simultaneous equations model systems are developed to describe urban residents’ activity-travel patterns. The models are estimated using repeated cross-sectional data from the Kyoto-Osaka-Kobe metropolitan area of Japan, collected in 1980, 1990 and 2000. The results of statistical analysis indicate that the structural relationships are instable, that changes in non-workers’ travel patterns are largely due to the instability in the structural relations while changes in demographic and socio-economic factors play relatively minor roles, and that urban residents’ travel has the tendency to expand over time. © 2005 Taylor and Francis Group, LLC.


Susilo, Y. O., & Kitamura, R. (2005). Is travel demand insatiable? A study of changes in structural relationships underlying travel. Transportmetrica, 1(1), 23-45.

Journal Article Type Article
Publication Date Jan 1, 2005
Journal Transportmetrica
Print ISSN 1812-8602
Publisher Taylor & Francis
Peer Reviewed Peer Reviewed
Volume 1
Issue 1
Pages 23-45
Keywords temporal stability, travel time budgets, trip generation, trip chaining, motorization, household travel surveys
Public URL
Publisher URL
Additional Information Additional Information : Joint author and Principal Investigator. Previous version of this article was presented at the 8th Conference of Hong Kong Society for Transportation Studies, Hong Kong, 2004. It is a further development of authors' paper that was presented in the 10th International Conference on Travel Behavior Research (IATBR), Lucerne, Switzerland, 2003

Downloadable Citations