Modeling transformation in neighborhood with urban redevelopment in built-up area of Tokyo incorporating effect of interaction

In Tokyo most of spatial changes in urban areas have been brought by re-developments of each sites conducted by individual circumstances, contin-uous redevelopments and these spatial changes can be found dispersedly in areas. Once a spatial change in a certain site appears in an area as a build-ing, it will be contained in a built environment which involves a perception of atmosphere of the area by residents and visitors who enjoy urban space. Planners and designers take part in continuing spatial changes. Thus, inter-actions among redevelopments by transformation of neighborhoods can be assumed. Using Sarugaku-cho, Shibuya-ku Tokyo, as a targeted example, we try to describe interactions in existing urban areas focusing spatial changes and changes of usage of buildings incorporating utility of players with the method of discrete choice model. We introduced some index re-lated to built environment and choice probabilities of other groups as ex-planatory variables into the model.