Abstract
This article purposes to evaluate the influence of the road potential on the transition of land use. The key concept of the analysis is the "potential contour", which is a kind of contour connecting the same level of the potential with respect to road width. Before producing the contour, point sampling data of road width is transformed into the "softened" point mesh data through a kind of smoothing process. These methods enable to evaluate the potential of the area which cannot be defined by ordinary methods such as buffering. The result of the analysis shows the existence of the threshold for the transition trend of urban land uses.
