"The Japan Sea Rim Natios" Is not one that was formed under a specific idea, as in the case of the European Community, in the respect of politics, economy and culture. At present, in particular after the Cold War, Japan has extended exchange on regional and private levels with the countries located on the other side of the apan Sea from the first stages of friendship to economic relationships. In the future, it is necessary to promote the establishment of an International exchange network and traffic system for each of the traffic facilities in order to build up the Block that will mainly contribute to the economies of countries and regions In the area. For the purpose, it is fundamental to reexamine the national land planning and the local development planning of each of the countries. From the standpoint of technology, the issues to be looked into are : study and development on marine civil engineering such as structures over straits study and development on the construction engineering of express ways and exprees rail roads : development of vehicles such as cars and trains I propose approaches to my vision of these traffic systems from my standpoint as an engineer in this paper.his paper.