The airports in multiple-airport areas are operated as a multiple-airport system. The system assigns roles or functions to the airports using air traffic distribution policies such as the exclusive use of passengers for domestic or international. Those policies are based on planning factors of airports such as location, accessibility and slot capacity. This study develops method of evaluating alternative rules of traffic distribution in a given system by using the criterion of passengers benefit. The evaluated method is used to calculate multiple-airport choice models for both terminal and transit passengers. The model was applied to the Tokyo Metropolitan area and the alternative of distribution rules was evaluated based on several feasible rules.

At present, because surface freight transport excessively depends on truck transportation, various social problems have been brought and become more and more serious. Therefore, relevant policies and measures have been made in developed countries from 1990′s, in order to shift freight transport from truck to the mode with a large quantity of transportation such as railway, ships, etc. Then nowadays, a competitive transportation system needs to be formed by a combination with railway and truck, that is intermodal freight transport system. This study focuses on how railway is used for logistics system. A fundamental concept about Railway System for Intermodal Freight Transport (RIFT-System) is proposed, based on the analysis on the current problems in railway transport. And corresponding approach to improve the railway system is constructed. Finally, a case study using the Kagoshima and Nagasaki railway in Kyushu region, Japan, is shown.

Accurate and uniform national data is indispensable for the formulation of national economic plans and national development plans. Similarly, uniform national transport data is needed for transport development plan. Data collection carried out by various organizations independently lacks consistency and is costly and inefficient. In order to deal with such issues, a development project for a national transport database (NTDB) was started in South Korea in 1998. In this paper, NTDB project in South Korea is introduced.