Analysis on Transformation of Road Network and Change of Transport System in Thailand

Abstract

In developing countries, the transport system used to be fragile so that the economical impact of road network development has not been revealed until it transforms to be adapted for the road network.
This paper investigated this transforming process on the transportation system in Thailand according to construction of national highway that was started under the support of U. S. during the Vietnam war. On the first part, the formation of the road network was analyzed by the graph theory and the ration of the shortest distance to the actual distance and the multi dimensional scaling in 1956, 1968 and 1980. On the second part, the change of transport system was indicated by estimating the amount of the crop transport by gravity model. Finally, the change of distribution system was expressed, and the key factor of development aid was discussed.