抄録
Natural coastal zones have been artificially transformed into urban areas for industrial and port facilities during the rapid economic growth period. As the industrialization stage gets matured, waterfront developments currently altered their objectives from simple industrial developments toward multi-purpose urban project for recreational use or varied urban activities.
Project plans, accordingly, have to face social investigation not only from industry-oriented perspectives, but also from wide standpoints for long-term social costs and benefits. In this study, environmental costs and benefits for Environmental Improvement Projects in Mikawa Bay Area, Aichi Prefecture, Japan by the Contingent Valuation Method, based on the questionare survey in the neighboring and surrounding districts in Bay Area. Social surplus for each environmental improvement plans including natural mitigation are tentatively evaluated and compared by cost-benefit ratio. The following are found from the numerical analysis. First, various questionare methods are effective to measure different portions of environmental value. Secondly, environmental and public goods with functional and conceptual relation to with the present natural property have higher WTP prices.
