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      Prioritising alternatives for maintenance of water distribution networks: a group decision approach

      research-article
      ,
      Water SA
      Water Research Commission (WRC)
      group decision, multi-criteria, maintenance, water networks

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          Abstract

          Difficulties related to the group decision-making process in the water supply sector, such as physical and economic losses, irrational use of water and maintenance costs, highlight the need to develop procedures to support decisions, reducing unnecessary water use and wastage. This study focused on the rational use of water resources and reduction of water losses, based on the assumption that it is far more economical to develop and improve existing systems rather than build new systems in parallel to the existing one. This study aimed to support a group decision-making process in the maintenance section of a water supply company. A model is proposed consisting of 2 phases, which aggregates individual preferences to achieve a group decision. The first phase is based on the ELECTRE II method, analysing individual preferences, while the second is based on the COPELAND method to aggregate individual preferences. From this model, we developed a software program to prioritise alternatives, simultaneously taking into account subjective and objective criteria, and thereby giving decision makers a clear and comprehensive overview of alternatives, indicating the most suitable alternative based on the preferences of group members from different areas.

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          Most cited references37

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          Multicriteria decision aid

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            Classement et choix en presence de ponts de vue multiples (la methode ELECTRE)

            B Roy, B. ROY, Roy (1968)
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              Decision Aids for Selection Problems

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                wsa
                Water SA
                Water SA
                Water Research Commission (WRC) (Pretoria, Gauteng, South Africa )
                0378-4738
                1816-7950
                January 2012
                : 38
                : 4
                : 555-564
                Affiliations
                [01] Recife PE orgnameFederal University of Pernambuco Brazil
                Article
                S1816-79502012000400011
                a5e845bb-e386-4ba6-bd6d-8831649f6a17

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 26 June 2012
                : 26 July 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 26, Pages: 10
                Product

                SciELO South Africa

                Categories
                Original articles

                maintenance,water networks,group decision,multi-criteria

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