The aim of this study is to find a design guideline of urban open space. This paper discusses the psychological evaluation structure of urban space analyzed by using the fuzzy theory. Selecting five types of open spaces from the downtown area of Kumamoto city, the authors used SD method to investigate psychological evaluation. To analyze the evaluation structure, multiple regression analysis in fuzzy integration method was employed. As the results, we obtained evaluation structure of urban open space that shows reciprocal action among some of evaluation indicators.
