dc.contributor.author Raspati, Gema Sakti dc.contributor.author Bruaset, Stian dc.contributor.author Bosco, Camillo dc.contributor.author Mushom, Lars dc.contributor.author Johannessen, Birgitte Gisvold dc.contributor.author Ugarelli, Rita Maria dc.date.accessioned 2022-02-07T15:24:40Z dc.date.available 2022-02-07T15:24:40Z dc.date.created 2022-01-30T10:38:50Z dc.date.issued 2022 dc.identifier.issn 1661-7827 dc.identifier.uri https://hdl.handle.net/11250/2977580 dc.description.abstract A risk-based approach to support water utilities in terms of defining pipe rehabilitation priorities is presented. In a risk analysis in the risk management process, the probability that a given event will happen and the consequences if it does happen have to be estimated and combined. In the quantitative risk analysis, numerical values are assigned to both consequence and probability. In this study, the risk event addressed was the inability to supply water due to pipe breaks. Therefore, on the probability side, the probability of pipes breaking was assessed, and on the consequence side, the reduced ability to satisfy the water demand (hydraulic reliability) due to pipe breakage was computed. Random Forest analysis was implemented for the probability side, while the Asset Vulnerability Analysis Toolkit was used to analyse the network’s hydraulic reliability. Pipes could then be ranked based on the corresponding risk magnitude, thereby feeding a risk evaluation step; at this step, decisions are made concerning which risks need treatment, and also concerning the treatment priorities, i.e., rehabilitation priorities. The water distribution network of Trondheim, Norway, was used as a case study area, and this study illustrates how the developed method aids the development of a risk-based rehabilitation plan. en_US dc.language.iso eng en_US dc.rights Navngivelse 4.0 Internasjonal * dc.rights.uri http://creativecommons.org/licenses/by/4.0/deed.no * dc.title A Risk-Based Approach in Rehabilitation of Water Distribution Networks en_US dc.type Peer reviewed en_US dc.type Journal article en_US dc.description.version publishedVersion en_US dc.source.volume 19 en_US dc.source.journal International Journal of Environmental Research and Public Health (IJERPH) en_US dc.source.issue 3 en_US dc.identifier.doi 10.3390/ijerph19031594 dc.identifier.cristin 1993425 cristin.ispublished true cristin.fulltext original cristin.qualitycode 1
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