This paper theoretically examines whether and how the value of travel time savings changes with the travel and individual socio-economic environments. A time allocation model for the general case of travel behavior is proposed following a review of basic theories of the value of time. Under some...

Lack of coordination between transport and land use in developing countries creates a variety of complications in the urban form. Due to this mismatch, vehicle ownership is uncontrollably rising, generating hyper-congestion on the road network. Suburban sprawling is one of the adverse outcomes...

The objective of this study is to analyze whether or not there is evidence indicating a significant preference for rail travel over bus, and, if such a preference exists, to learn about the characteristics that affect it and cause it to vary from one situation to another. After a brief review of...

Recently, large-scale hub airports have been developed at principal cities in Asia. Consequently, many direct air routes for Asian cities have been established from local airports in Japan. By December 2001, for instance, 22 airports in Japan offered direct flights to South Korea. These changes...

Inaccuracies in forecasting create serious problems for transportation projects. To improve forecasting accuracy, researchers must investigate the reasons for the inaccuracies. However, very little research has been done, and the percentage of errors for each reason has rarely been examined....