A Consideration of a Composing Evaluation System for Multi-criteria Evaluation of the Waterside Environment of the Kamo-river, Kyoto

Generally, evaluating the values of maintaining and preserving the environment is a difficult task. Multi-criteria analysis is expected as a new method for environmental evaluations to select the most desirable alternative by a weighting scheme in Europe. In river environment management, a method for evaluating natural factors as well as social factors influenced by the project is necessary. Establishing an evaluation method that reflects the opinions of residents around a river as well as the administration is also an urgent task. In this study, we assumed that when residents evaluate an alternative they do not use scientific information, but use their own impressions of the rivers. Based on this assumption, the multi-criteria evaluation model was used to establish a cognitive system to evaluate the impressions of the local residents. That is, the impression cognitive system was composed of Type 2 quantification methods for a questionnaire distributed around the Kamo River. Answers to questions about actions (ex, frequency to go to the river, etc.) were used as the dependent variables and nine impressions of the river were used as the explanatory variables. Finally, the possibility of consensus between upstream and downstream residents for river environment management of the Kamo River was examined with the established impression cognitive system