Abstract
By the spread of passenger cars, and introduction of a new transportation system, the bus attraction gets worse in cities across the country. As deregulation of bus service, it is easy to enter or get out of bus service. When bus employer gets out of unprofitable bus route, there is fear that the life route for local resident is spoiled. So we need characteristic evaluation by bus service. In this paper, from the two view points of production efficiency and elicitation potential demand along the bus line, we assess existing bus line and propose rational method of reorganization on bus network on Kumamoto urban area.