Assessment of metrics for resilient design of water distribution networks

被引:2
作者
Piratla, Kalyan R. [1 ]
Ariaratnam, Samuel T. [2 ]
机构
[1] Clemson Univ, Glenn Dept Civil Engn, Clemson, SC 29634 USA
[2] Arizona State Univ, Ira A Fulton Sch Engn, Tempe, AZ 85287 USA
来源
JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA | 2015年 / 64卷 / 06期
关键词
failure state analysis; optimization; resilience; water distribution networks; DISTRIBUTION-SYSTEMS; DECISION-MAKING; REPLACEMENT; MODEL;
D O I
10.2166/aqua.2015.014
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Water distribution networks (WDNs) play a crucial role in the well-being of human populations and economic prosperity. It is essential that they cope with abnormal operating conditions and recover functionality quickly. Traditionally, WDNs are designed using cost and reliability objectives, but there is a lack of consensus on the definition and quantification of reliability which typically is a computationally intense process. Subsequently, various reliability-like metrics, called resilience indices, have been developed and demonstrated in the design of WDNs. Few studies exist that thoroughly evaluate the performance of the previously developed resilience metrics. This paper investigates three resilience metrics by evaluating their performance on three benchmark WDNs for several simulated mechanical failure states. The metrics studied are: (a) resilience index, (b) network resilience index (NRI), and (c) modified resilience index (MRI). The metric MRI performed better overall but NRI produced cheaper designs that performed better in the case of WDN-I. It is recommended that a better metric that incorporates different dimensions of resilience, such as robustness and redundancy, should be developed in the future.
引用
收藏
页码:660 / 669
页数:10
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