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Reliability and Tolerance Comparison in Water Supply Networks

Author

Listed:
  • José Martínez-Rodríguez
  • Idel Montalvo
  • Joaquín Izquierdo
  • Rafael Pérez-García

Abstract

Urban water supply is a high priority service and so looped networks are extensively used in order to considerably reduce the number of consumers affected by a failure. Looped networks may be redundant in connectivity and capacity. The concept of reliability has been introduced in an attempt to quantitatively measure the possibility of maintaining an adequate service for a given period. Numerous researchers have considered reliability as a measure of redundancy. This concept is usually implicit, but some researchers have even stated it explicitly. This paper shows why reliability cannot be considered a measure of redundancy given that branched networks can achieve high values of reliability and this would deny the fact that a looped network is more reliable than a branched network with a similar layout and size. To this end the paper discusses two quantitative indices for measuring expected network behavior: reliability and tolerance. These indices are calculated and a comparison is made between looped, branched, and mixed networks. Copyright Springer Science+Business Media B.V. 2011

Suggested Citation

  • José Martínez-Rodríguez & Idel Montalvo & Joaquín Izquierdo & Rafael Pérez-García, 2011. "Reliability and Tolerance Comparison in Water Supply Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 25(5), pages 1437-1448, March.
    • Handle: RePEc:spr:waterr:v:25:y:2011:i:5:p:1437-1448
    DOI: 10.1007/s11269-010-9753-2
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    References listed on IDEAS

    as
    1. Andrés Carrión & Hernando Solano & María Gamiz & Ana Debón, 2010. "Evaluation of the Reliability of a Water Supply Network from Right-Censored and Left-Truncated Break Data," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 24(12), pages 2917-2935, September.
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    Citations

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    Cited by:

    1. Agathoklis Agathokleous & Chrystalleni Christodoulou & Symeon E. Christodoulou, 2017. "Topological Robustness and Vulnerability Assessment of Water Distribution Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(12), pages 4007-4021, September.
    2. E. Creaco & M. Franchini & S. Alvisi, 2012. "Evaluating Water Demand Shortfalls in Segment Analysis," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(8), pages 2301-2321, June.
    3. M. Tabesh & H. Saber, 2012. "A Prioritization Model for Rehabilitation of Water Distribution Networks Using GIS," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(1), pages 225-241, January.
    4. Tonino Liserra & Marco Maglionico & Valentina Ciriello & Vittorio Di Federico, 2014. "Evaluation of Reliability Indicators for WDNs with Demand-Driven and Pressure-Driven Models," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(5), pages 1201-1217, March.
    5. L. Cimorelli & F. Morlando & L. Cozzolino & A. D’Aniello & D. Pianese, 2018. "Comparison Among Resilience and Entropy Index in the Optimal Rehabilitation of Water Distribution Networks Under Limited-Budgets," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(12), pages 3997-4011, September.
    6. Calvin Siew & Tiku Tanyimboh, 2012. "Pressure-Dependent EPANET Extension," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(6), pages 1477-1498, April.

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