Environmental Improvement Projects on Urban River and the Measurement of Potential Benefits Accruing from Them

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This paper attempts to measure and evaluate systematically the environmental effects of a proposed riverside project at the Toyohira River in Sapporo, and briefly describes living environmental conditions of riversides which promote quality of life. The four procedural steps for measuring and evaluating these environmental conditions have also been discussed : (1) using a sample concerned with individual responses (pairwise comparison judgments) to a questionnaire which is mainly composed of many pairwise comparison questions, the paper describes functions of urban rivers and attributes neccessary for measuring the benefits accruing from environmental improvement of a riverside ; (2) identification of parameters of component utility function ; (3) identification of relative constants of multiattribute utiliy function ; (4) interpretation of w_4 (the relative constant) ; (5) aggregation of the potential benefits obtained from the improvement project. The results of the procedure provide the basic information, in monetary units, towards approving or disapproving a riverside improvement project. Although some problems of the procedure still remain, the paper concludes that the application of the procedure to a proposed riverside improvement project in Sapporo can be very effective and also holds a great potential for assisting future planning and implementation of similar projects elsewhere.
小樽商科大学の論文