Assessment of Criticality in Water Distribution Networks via Complex Network Theory

Processes, Год журнала: 2025, Номер 13(2), С. 408 - 408

Опубликована: Фев. 4, 2025

Water distribution networks (WDNs), which are responsible for delivering water of adequate quantity and quality, vulnerable to threats such as leaks, pipe breaks, contaminant intrusions. Hence, it is important identify critical network elements develop more assertive maintenance strategies systems. This paper aims perform a risk assessment on leaks breaks support the identification in supply To this end, complex theory (CNT) applied an alternative conventional approaches that rely multiple hydraulic simulations. Metrics robustness, redundancy, centrality, connectivity used analyze graphs representing WDNs. Failures modeled using simulations evaluate their impact parameters pressure flow. CNT metrics then applied, including shortest path calculations between sources demand vertices assess importance, vertex centrality node influence network. The results compared with outcomes CNT-based analyses. Multi-criteria analysis employed determine asset priority, considering failures associated impacts system. highlight novel approach shifts focus from state-based assessments topology-driven analysis, reducing uncertainties inherent models.

Язык: Английский

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Using Complex Network Analysis for Optimization of Water Distribution Networks

Water Resources Research, Год журнала: 2020, Номер 56(8)

Опубликована: Июль 23, 2020

Abstract The optimization of water networks supports the decision‐making process by identifying optimal trade‐off between costs and performance (e.g., resilience leakage). A major challenge in domain distribution systems (WDSs) is network (re)design. While complex nature WDS has already been explored with analysis (CNA), literature still lacking a CNA networks. Based on systematic Pareto‐optimal solutions different WDSs, several graph characteristics are identified, newly developed design approach for WDSs proposed. results show that obtained designs comparable found evolutionary optimization, but applicable large 150,000 pipes) substantially reduced computational effort (runtime reduction up to 5 orders magnitude).

Язык: Английский

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A review of graph and complex network theory in water distribution networks: Mathematical foundation, application and prospects

Water Research, Год журнала: 2024, Номер 253, С. 121238 - 121238

Опубликована: Фев. 3, 2024

Язык: Английский

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Bridging hydraulics and graph signal processing: A new perspective to estimate water distribution network pressures

Water Research, Год журнала: 2022, Номер 217, С. 118416 - 118416

Опубликована: Апрель 5, 2022

Язык: Английский

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Centrality and shortest path length measures for the functional analysis of urban drainage networks

Applied Network Science, Год журнала: 2020, Номер 5(1)

Опубликована: Янв. 2, 2020

Abstract The objective of this research is to evaluate whether complex dynamics urban drainage networks (UDNs) can be expressed in terms their structure, i.e. topological characteristics. present study focuses on the application measures for describing transport and collection functions UDNs, using eight subnetworks Dresden sewer network as cases. All UDNs are considered weighted directed graphs, where edge weights correspond structural hydraulic pipe characteristics which affect flow. Transport evaluated travel time distributions (TTDs), under hypothesis that frequency Single Destination Shortest Paths (SDSP) nodes outlet had similar shapes than TTDs. Assessment done based two-sample Kolmogorov-Smirnov tests comparisons statistical moments. Collection analysis, determination flow paths, two approaches: (1) Edge Betweenness Centrality (EBC), (2) number SDSP going through an connecting a node outlet, referred Paths. Hydrodynamic simulation results used validate outcomes graph analysis with actual behaviors. Results indicate given appropriate weighting factor, case Residence Time, has potential indicator UDNs. Moreover, both EBC values were highly correlated average flows. first approach, however, proved inadequate estimating flows near but identifying different paths meshed systems, while second approach lead better branched networks. Further studies regarding influence layout needed.

Язык: Английский

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Managing water main breaks in distribution networks––A risk-based decision making

Reliability Engineering & System Safety, Год журнала: 2019, Номер 191, С. 106581 - 106581

Опубликована: Июль 13, 2019

Язык: Английский

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Towards an Understanding of Hydraulic Sensitivity: Graph Theory Contributions to Water Distribution Analysis

Water, Год журнала: 2024, Номер 16(5), С. 646 - 646

Опубликована: Фев. 22, 2024

Water distribution systems (WDSs) are complex networks with numerous interconnected junctions and pipes. The robustness reliability of these critically dependent on their network structure, necessitating detailed analysis for proactive leak detection to maintain integrity functionality. This study addresses gaps in traditional WDS by integrating hydraulic measures graph theory improve sensitivity detection. Through case studies five distinct WDSs, we investigate the relationship between metrics. Our findings demonstrate collective impact factors system efficiency. research provides enhanced insights into operational dynamics highlights significant potential bolster resilience reliability.

Язык: Английский

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Water Distribution Network Resilience Management Using Global Resilience Analysis-Based Index

Sustainability, Год журнала: 2025, Номер 17(6), С. 2353 - 2353

Опубликована: Март 7, 2025

Resilient water distribution system is crucial for sustainable urban management. Evaluating the inherent resilience of buried infrastructure key to ensuring reliable distribution. The network maintains quality and supplies sufficient users. system’s under varying failure conditions guarantee continued service delivery. This study investigates University City, Sharjah, United Arab Emirates subjected caused by pipe failure, contamination, excess demand. research quantifies corresponding performance these stressors develops an innovative index using global analysis (GRA) approach. strain in form node chlorine decay, pressure failures among all pipes throughout network. A survey was conducted with company identify recovery time designated Another experts evaluate relative significance strains contribution towards resilience. Based on index, four levels (high, moderate, low, very low) were defined. revealed Sharjah has up 40% its stress categorized as low 60% also presented a management plan improvement

Язык: Английский

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An Exact Multiobjective Optimization Approach for Evaluating Water Distribution Infrastructure Criticality and Geospatial Interdependence

Water Resources Research, Год журнала: 2019, Номер 55(7), С. 5255 - 5276

Опубликована: Май 15, 2019

Abstract Failures within water distribution systems are usually not isolated and tend to propagate corresponding transportation infrastructure, yet most criticality resilience analyses of networks conducted for the individual infrastructure without accounting interdependence. To address this research gap, study investigates how critical components identified may be different when failure propagation road network. In study, is assumed based on geospatial interdependence unidirectional, starting from network components. A logical interaction constructed considering between both infrastructures, multiobjective optimization used solve considering: quantity failures, performance loss, financial costs. This work presents a modular workflow analysis proposes Kolmogorov‐Smirnov distance statistic solution sets as measure significance interdependency decision making. Results case suggest that magnitude increases beyond threshold, becomes more significant. The difference using only information significantly (with greater than 95% confidence) city Tampa, 40 fail (are isolated). These results will assist utilities in asset management strategy assessment, by helping prioritize component repair better allocate resources interdependent infrastructures.

Язык: Английский

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Criticality and Susceptibility Indexes for Resilience-Based Ranking and Prioritization of Components in Interdependent Infrastructure Networks

Journal of Management in Engineering, Год журнала: 2020, Номер 36(4)

Опубликована: Март 31, 2020

In infrastructure networks, each of the constituent components (nodes and links) has its own significance. The extent to which node is important network largely varies based on resource or service it provides type nodes that are dependent it. Similarly, links essential for uninterrupted supply resources their respective destinations. To enhance resilience vital importance identify quantify consequences component failures other in network, researchers have proposed several methods. Though all may be vulnerable some kind external hazards, time constraints make impossible managers policymakers adopt measures every a network. Hence, necessary address issue link prioritization develop effective strategies networks. This study proposes two indexes, criticality index susceptibility index, deal with types ranking relevant resilience. Then indexes used heuristic algorithm rank prioritize links. can support decision-making designing managing interdependent networks prior disaster, identifying warrant immediate restoration during after devising additional handle heightened disaster risks recovery.

Язык: Английский

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