2006 年 2 巻 4 号 p. 318-325
In this research, we considered the roles of life cycle assessment (LCA), the limits of LCA, and countermeasures for the limits of LCA in reconstruction of the urban infrastructure. Concretely, LCA of 15 cases using a combination of technology and facilities was carried out for assessment of the urban waste and wastewater treatment system for comparative assessment. Life cycle simulation was done based on LCA results for 2050 to compare the measures scenario with the BaU (business as usual) case. In addition, analytic hierarchy process (AHP) was examined as a tool for integrating criteria evaluation for multi-objective decision-making, and the sensitivity analysis was attempted. Finally, to analyze the influence which the urban infrastructure gave to the material flow of the urban area, the analysis example was shown about the material flow cost accounting on an urban scale as effective cooperation of LCA and material flow analysis (MFA) and systematic expressions.
