Abstract
It is well known that infrastructure networks are the key factors for the social change. This paper proposes a method for the analysis of the interrelationships among regions in Japan based on freight, telecommunications and postal OD flow data. The relationships are formulated as the enthoropy model and then the regions are allocated on the multidimension space. The asymmetry of the flows are explicitly treated. The results demonstrate the differences of interrelationship structure among the infrastructure types.