We clarified following 2 points on importance of environmental control of neighborhood by using district planning system together with voluntary rules.・It is possible to make a rule gradually by considering from the voluntary rule to district planning system, and also possible to make an article a voluntary rule or a district plan, depend on easiness to reach agreement or characteristics of the article.・It is possible to realize the comprehensive environmental control reducing community's role, by combining the preventive regulation by administration and the recommending rule by residents to improve environment.
