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Accounting for Source Location on the Vulnerability Assessment of Water Distribution Network

Phan, H.C. and Dhar, A.S. and Bui, N.D. (2021) Accounting for Source Location on the Vulnerability Assessment of Water Distribution Network. Journal of Infrastructure Systems, 27 (3): 4021024. ISSN 10760342

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Abstract

The vulnerability of water distribution networks (WDNs) to water-main breaks is used for prioritizing pipes in the network for maintenance planning. In this paper, a parameter of graph theory, algebraic connectivity (AC), is employed as a vulnerability metric for WDNs. The change in the magnitude of AC of the networks due to the removal of pipes was found to have a strong correlation with loss of robustness of the WDNs or the size of the network being isolated by the water-main breaks. However, because AC is a topographic measure of graphs, the effects of the location of water sources are not accounted for in ranking through the change in AC. A virtual network is proposed here to overcome the limitation and to move the centrality of the network to the pipes connecting to the water source. The resulting AC based ranking is found to have a correlation with hydraulic impact factor-based ranking of the pipes of WDNs. © 2021 American Society of Civil Engineers.

Item Type: Article
Divisions: Institutes > Institute of Techniques for Special Engineering
Identification Number: 10.1061/(ASCE)IS.1943-555X.0000620
Uncontrolled Keywords: Graph theory; Network security; Algebraic connectivity; Hydraulic impacts; Maintenance planning; Source location; Strong correlation; Virtual networks; Vulnerability assessments; Water distribution networks; Water distribution systems; connectivity; correlation; distribution system; numerical method; pipe; vulnerability; water planning
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/8587

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