Systemization of Infrastructure Design in the Context of Economic Accounting

基础设施投资的资金困难、环境约束和许多防灾需求导致社会对提高基础设施质量的极大关注。然后，基础设施设计必须更经济高效，更灵活，以性能为基础。基础设施设计体系不仅要从工程的角度来审视，而且要从社会经济的角度来审视。本研究项目首先回顾了现有的基础设施设计方法，然后在经济核算的背景下将设计过程系统化。特别是，规划阶段与设计阶段的联系，设计与生命周期管理的一致性，设计与会计制度的互动以及设计工作的制度基础都被逐个主题地审查。通过该项目取得了以下成果：(1)将基础设施设计的方法与其他工程领域的方法进行比较，并在经济核算的框架下进行系统化。(2)定义了基础设施的经济最优寿命，提出了设计方法。(3)在经济学机制设计方法的框架下对设计工作合同进行了考察。(4)澄清了公共部门和私营部门设计方法的差异。(5)对多功能箱体的设计问题进行建模检验。

Financial difficulties in infrastructure investment, environmental constraints and many needs for disaster prevention lead to a great social concern for quality improvement of infrastructure. Then infrastructure design must be more economically efficient and more flexible in line of thought for performance-based. The system of infrastructure design is to be reviewed not only from engineering viewpoints but also from socio-economic viewpoints.This research project has first review the existing approaches in infrastructure design and then systemized the design process in the context of economic accounting. Particularly, the linkage of planning stage with the design stage, the consistency of the design with the life-cycle management, the interaction of design with accounting system and the institutional basis for the design work have been examined by topic by topic.The following outcomes have been obtained through the project.(1)Approaches in infrastructure design were compared with those in other engineering fields and systemized in the framework of economic accounting.(2)Economically optimal life time of infrastructure was defined and the design method was proposed.(3)Contract of design work was examined in the framework of mechanism design approach in economics.(4)Differences of design approach between public and private sectors were clarified.(5)Design problem of multiple function case was modeled to be examined.