User Costs in Seismic Risk Management for Urban Infrastructure Systems

9802151 Chang本项目探讨如何将用户影响纳入基础设施系统地震风险管理措施的成本效益评估方法。 它试图说明如何在寿命周期成本分析的框架内应用用户成本。 寿命周期成本分析是一种与效益/成本分析有关的方法，它除了考虑最初的建设成本外，还考虑与投资项目有关的维护和其他长期成本。 它的优点是可以在日常基础设施管理实践的范围内评估减轻地震灾害的情况。 这在基础设施系统的情况下尤其重要，其中某些类型的抗震升级程序（例如，管道更换）可以减少正常的维护成本作为附带的好处。 具体任务包括制定考虑用户成本的指导方针，在生命周期成本分析框架内制定用户成本方法，并使用美国地震脆弱地区的实际城市基础设施系统进行两到三个案例研究。

9802151 Chang This project explores how user impacts can be incorporated into methods for assessing the cost effectiveness of seismic risk management measures for infrastructure systems. It seeks to demonstrate how user costs can be applied within the framework of life cycle costs analysis. Life cycle cost analysis, an approach related to benefit/cost analysis, considers maintenance and other long-term costs associated with an investment project in addition to the initial cost of construction. It has the advantage of allowing the assessment of seismic hazard mitigation in the context of routine infrastructure management practice. This is particularly important in the case of infrastructure systems where some types of seismic upgrading procedures (e.g., pipe replacement) may reduce normal maintenance costs as a collateral benefit. Specific tasks include establishing guidelines for consideration for user costs, developing a user cost methodology within the framework of life cycle costs analysis, and implementating two to three case studies using actual urban infrastructure systems in seismically vulnerable regions of the U.S. ***