International Comparison of Transport Infrastructure Development Level by Considering Geographic, Demographic and Economic Difference of Countries

摘要

Investment in High-speed transport infrastructure(High-speed rail, airport, Expressway...) is being supported by governments and supranational agencies with the declared aim of working for a more sustainable transport system. In order to make the future plan of High-speed transport infrastructure, a suitable methodology to evaluate the development level of High-speed transport infrastructure is essential. To the decision makers, while finding absolute evaluation of High-speed transport infrastructure is difficult, the comparison of development level of High-speed transport infrastructure among the world also can provide valuable information. Previous researches have studied the comparative model of expressway and airport, so firstly, this paper presents a model that can be used to compare the development level of High-speed rail. The model in this study is based on the consideration of geography, economic, democracy and speed condition. Basic theory is when total cost (time cost+construction cost) is minimal, the development level of High-speed rail is considered as optimal. The ratio of existing development level and optimal level is used as the development index. Comparative development level index of network length and operation speed are derived to evaluate the development level of High-speed rail in every country. By the worldwide High-speed rail data, the comparative development level and development trend of each country are expressed as the result. Japan's regional data are also applied in the model and the regional development level index tendency is derived and analyzed. Due to the limitation of High-speed rail user, time cost of High-speed rail passenger is considered. Finally, the combination of other transport mode is considered by applying the passenger movement mode share as the factor of traffic demand. The normalized development level index of each mode is expressed by 3-dimentional figure. The detail of each surface is analyzed. Besides, the two kinds of model which can compare the development level of land transport with air transport are constructed.