Modeling interregional exchanges caused by expressway toll policies in the Shikoku region

Abstract

In the Shikoku region, it is expected that highway toll policies will promote inter-regional exchange. Therefore, this study aims to describe inter-regional exchanges as a model. The attractiveness of a region is expressed by various indicators of the destination. The costs of inter-regional exchange include the amount of consumption during the stay and generalized travel costs. Expressway tolls are included in generalized travel costs. In order to develop a model of regional exchange across Japan, the difference in generalized travel costs between outbound and return journeys is taken into account. The indices of dwell time and number of visits gave reasonable results.