Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Water Distribution Networks Resilience Analysis: a Comparison between Graph Theory-Based Approaches and Global Resilience Analysis |
| Abstract | The structure and connectivity of infrastructure systems such as water distribution networks (WDNs) affect their reliability, efficiency and resilience. Suitable techniques are required to understand the potential impacts of system failure(s), which can result from internal (e.g. water hammer) or external (e.g. natural hazards) threats. This paper aims to compare two such techniques: Graph Theory (GT) and Global Resilience Analysis (GRA). These are applied to a real network-L'Aquila (central Italy)-and two benchmark networks-D-Town and EXNET. GT-based metrics focus on the topology of WDNs, while GRA provides a performance-based measure of a system's resilience to a given system failure mode. Both methods provide information on the response of WDNs to pipe failure, but have different data requirements and thus different computational costs and precision. The results show that although GT measures provide considerable insight with respect to global WDN behavior and characteristics, performance-based analyses such as GRA (which provide detailed information on supply failure duration and magnitude) are crucial to better understand the local response of WDNs to pipe failure. Indeed, particularly for complex networks, topological characteristics may not be fully representative of hydraulic performances and pipe failure impacts |
| Source | Water resources management |
| Keywords | Resilience assessmentwater distribution networksglobal resilience analysisgraph-theory metrics |
| Journal | Water resources management |
| Editor | Reidel, Boston, Paesi Bassi |
| Year | 2019 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11269-019-02276-x |
| Authors | Alessandro Pagano, Chris Sweetapple, Raziyeh Farmani, Raffaele Giordano, David Butler |
| Text | 402757 2019 10.1007/s11269 019 02276 x Scopus 2 s2.0 85068563854 ISI Web of Science WOS WOS 000474497000019 Resilience assessment water distribution networks global resilience analysis graph theory metrics Water Distribution Networks Resilience Analysis a Comparison between Graph Theory Based Approaches and Global Resilience Analysis Alessandro Pagano, Chris Sweetapple, Raziyeh Farmani, Raffaele Giordano, David Butler IRSA CNR, Centre for Water Systems University of Exeter, Centre for Water Systems University of Exeter, IRSA CNR, Centre for Water Systems University of Exeter The structure and connectivity of infrastructure systems such as water distribution networks WDNs affect their reliability, efficiency and resilience. Suitable techniques are required to understand the potential impacts of system failure s , which can result from internal e.g. water hammer or external e.g. natural hazards threats. This paper aims to compare two such techniques Graph Theory GT and Global Resilience Analysis GRA . These are applied to a real network L Aquila central Italy and two benchmark networks D Town and EXNET. GT based metrics focus on the topology of WDNs, while GRA provides a performance based measure of a system s resilience to a given system failure mode. Both methods provide information on the response of WDNs to pipe failure, but have different data requirements and thus different computational costs and precision. The results show that although GT measures provide considerable insight with respect to global WDN behavior and characteristics, performance based analyses such as GRA which provide detailed information on supply failure duration and magnitude are crucial to better understand the local response of WDNs to pipe failure. Indeed, particularly for complex networks, topological characteristics may not be fully representative of hydraulic performances and pipe failure impacts Published version https //link.springer.com/article/10.1007/s11269 019 02276 x Water Distribution Networks Resilience Analysis a Comparison between Graph Theory Based Approaches and Global Resilience Analysis Published Paper 2019 Pagano et al WARM GTA GT.pdf Articolo in rivista Reidel 0920 4741 Water resources management Water resources management Water resour. manag. raffaele.giordano GIORDANO RAFFAELE alessandro.pagano PAGANO ALESSANDRO |