Abstract
U-city is one of the local cities which are planning to conduct environmental policy to conserve favorable and sustainable environment. For this purpose, U-city preformed questionnaire to understand current thought of local residents. In this study, by the use of self-organizing map (SOM) based on the results of the questionnaire, the consciousness of local residents were analyzed. As a results of this study, environmental issues of high interest, approach to environmental problems, and satisfaction/ importance of environmental policy were clearly investigated. We confirmed that the SOM is one of the useful tools to classify the results of questionnaire.