A hybrid knowledge-based method for pipe renewal planning in Water Distribution Systems with limited data: Application to Iran

Salehi, Sattar; Robles-Velasco, Alicia; Seyedzadeh, Ali; Ghazali, Aliakbar; Davoudiseresht, Mohsen

doi:10.1016/j.jup.2022.101407

Cited by 5 publications

(1 citation statement)

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“…It seems that this behavior of the model is consistent with the use in environmental assessments. Salehi et al (2022) utilized a hybrid knowledge-based approach to schedule pipe repair and renovation in WDNs, which is useful when data are limited. The results revealed that when the use of complex analyticalnumerical methods was impractical, the proposed method can be used to identify planning criteria for pipe renovation in WDNs.…”

Section: Introductionmentioning

confidence: 99%

Pipe renewal plan in water distribution network considering physical and operational risk factors: A hybrid MCDM-QSPM technique

Mohammadi

2024

Preprint

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A significant amount of supplied water is wasted because of the existence of leak and pipe breakage in urban WDNs. Its increase the possibility of pollution infiltration. The financial crises and inappropriate budgets for WDNs renovation make the classification of pipes in terms of modification and providing a management plan necessary. In this research, the MCDM method has been utilized to provide a plan for prioritizing pipe repairs of the WDNs. The clustering is determined utilizing the ELECTRE TRI model, based on specific physical and operational risk factors. These criteria are proposed according to the personal preferences, previously. The QSPM analysis was employed to illustrate criteria priorities. Therefore, a novel hybrid QSPM–MCDM technique was introduced to develop a pipe renewal plan for WDNs. Furthermore, optimistic and pessimistic prioritization is assessed in classification of pipes. A real WDN was investigated as a sample. In optimistic prioritization, 2%, 8%, 16%, 61% and 13% of pipes are categorized in five classes of modification, respectively. In pessimistic case, 18% of the pipes only need periodic visits and 82% of them do not need repairs. These results showed the output of pessimistic classification didn’t match the present situation of WDN. The main branch of the WDN pipes has been classified in the most risky classes in the optimistic analysis.

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Section: Introductionmentioning

confidence: 99%