Developing a Simplified Practical Approach for Analyzing the Criticality of Isolation Valves

Gopinathan R. Abhijith, Elad Salomons, Avi Ostfeld

Research output: Contribution to journalArticlepeer-review


Maximizing reliability is imperative for water distribution network (WDN) design. Recent claims about providing adequate and operable isolation valves as a focal aspect of a reliable WDN design have attracted substantial interest. In this direction, this paper attempts to answer the question of which isolation valves in a WDN must be prioritized based on their criticality toward enhancing WDN reliability. Two novel algorithms are proposed, one for ranking every isolation valve in a WDN and the second to identify the location of a new isolation valve to reduce the criticality of a specific valve in a WDN. Unlike the prevailing methodologies, the proposed algorithms are entirely based on the topological attributes of a WDN and do not require a calibrated hydraulic model, which is often a limiting factor in WDN management. Our proof of concept has unveiled the capability of the methodology to deliver preliminary information to water utilities regarding the criticality of valves without any hydraulic simulation.

Original languageEnglish
Article number06023005
JournalJournal of Water Resources Planning and Management - ASCE
Issue number11
StatePublished - 1 Nov 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 American Society of Civil Engineers.


  • Criticality
  • Design
  • Isolation valve
  • Leakage
  • Reliability
  • Water distribution system

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Water Science and Technology
  • Management, Monitoring, Policy and Law


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