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The faster the better: On the shortest paths role for near real-time decision making of water utilities

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  • Giudicianni, Carlo
  • Herrera, Manuel
  • Di Nardo, Armando
  • Oliva, Gabriele
  • Scala, Antonio

Abstract

Near real-time monitoring and control of critical infrastructure is essential for the operation and management of cities in a world that is, today, more complex and interconnected than ever. Such an infrastructure can be represented as complex networks an some of their related indices and statistics, many of them based on the shortest paths, play a pivotal role in the decision making for public services such as internet, energy or water. Particularly, the literature has shown that shortest paths are key for resilience and criticality assessment in a water distribution systems (WDS). This paper proposes a procedure to speed-up the computation of shortest paths in a WDS, as it can straightforwardly benefit any critical infrastructure. The proposal is based on a reduced dimension of a complex network representing any critical infrastructure. Despite the consequent decrease in the number of all possible paths in the network, the main advantage and novelty of this proposal is to continue finding the exact solution for the shortest paths. Experimental results show that the procedure brings a computational-time reduction consistently over 50% and up to 90% in some cases. In addition, the paper reveals how the use of shortest paths benefits WDS operation and management, as well as playing a key role in near real-time contamination detection and leakage control.

Suggested Citation

  • Giudicianni, Carlo & Herrera, Manuel & Di Nardo, Armando & Oliva, Gabriele & Scala, Antonio, 2021. "The faster the better: On the shortest paths role for near real-time decision making of water utilities," Reliability Engineering and System Safety, Elsevier, vol. 212(C).
    • Handle: RePEc:eee:reensy:v:212:y:2021:i:c:s0951832021001368
    DOI: 10.1016/j.ress.2021.107589
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    References listed on IDEAS

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    1. Shuang, Qing & Zhang, Mingyuan & Yuan, Yongbo, 2014. "Node vulnerability of water distribution networks under cascading failures," Reliability Engineering and System Safety, Elsevier, vol. 124(C), pages 132-141.
    2. Alcaraz, Cristina & Zeadally, Sherali, 2015. "Critical infrastructure protection: Requirements and challenges for the 21st century," International Journal of Critical Infrastructure Protection, Elsevier, vol. 8(C), pages 53-66.
    3. Eusgeld, Irene & Kröger, Wolfgang & Sansavini, Giovanni & Schläpfer, Markus & Zio, Enrico, 2009. "The role of network theory and object-oriented modeling within a framework for the vulnerability analysis of critical infrastructures," Reliability Engineering and System Safety, Elsevier, vol. 94(5), pages 954-963.
    4. Carlo Giudicianni & Manuel Herrera & Armando Nardo & Kemi Adeyeye, 2020. "Automatic Multiscale Approach for Water Networks Partitioning into Dynamic District Metered Areas," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(2), pages 835-848, January.
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    Cited by:

    1. Patriarca, Riccardo & Simone, Francesco & Di Gravio, Giulio, 2022. "Modelling cyber resilience in a water treatment and distribution system," Reliability Engineering and System Safety, Elsevier, vol. 226(C).

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