Exploring the relationships among reliability, resilience, vulnerability of water supply using many-objective analysis
Journal of Water Resources Planning and Management
American Society of Civil Engineers
© 2017 American Society of Civil Engineers
Reliability, resilience and vulnerability are the most commonly used performance criteria for water supply planning and management. However, there is lack of understanding of the relationships among these criteria. This paper aims to reveal the relationships among them by using an emerging many-objective visual analytics. To measure different aspects of water supply systems in terms of reliability, resilience and vulnerability, a suite of five metrics are considered: water supply reliability, mean and maximum deficits of water supply as well as mean and maximum durations of water shortage. Results obtained in this study reveals that both conflicting and synergetic relationships exist between reliability and resilience (mean deficit of water supply), and between vulnerability (mean duration of water shortage) and resilience (mean deficit of water supply) in different regions of the objective space. A more complete picture of the relationships among reliability, resilience and vulnerability than reported in the prior literature is provided in this paper thanks to the use of many-objective analysis. This study provides an in-depth understanding of the relationships and can help decision makers make an informed decision in the management of water resources systems.
This study is supported by the National Natural Science Foundation of China (Grant No. 91547116 and 51320105010 and 51579027) and is partly funded by the national science and technology major project under grant 2014ZX03005001. The last author was partially supported by the EPSRC under the Building Resilience into Risk Management project (EP/N010329/1). We would like to thank DecisionVis for providing access to the DiscoveryDV software.
This is the author accepted manuscript. The final version is available from American Society of Civil Engineers via the DOI in this record.
Vol. 143 (8)