抄録
This paper aims toward the development of the optimization model on the infrastructure systems. The model is attained by Investment Allocation Model (IAM), which has a sub model named as Technological Options Model (TOM). The TOM was developed in order to select the technology under restrictions. The best route for investment is presented by the IAM maximizing the welfare considering the environmental impact and the cost. The problem of the JAM is how to allocate investments among the various systems of regional infrastructure such as public transportation, sewerage and waste treatment. Within the limitations of a relatively simple model, the relation of the investment to minimize the damage and the investment to provide the benefit is demonstrated. Some case studies are shown as the flow and stock damage, respectively, which clearly indicate the patterns of each solution.
