Using ELECTRE TRI to support maintenance of water distribution networks

Abstract

ABSTRACT. Problems encountered in the context of the maintenance management of water supply are evidenced by the lack of decision support models which gives a manager overview of the system. This paper, therefore, develops a model that uses, in its framework, the multicriteria outranking method ELECTRE TRI. The objective is to sort the areas of water flow measurement of a water distribution network, by priority of maintenance, with data collected from an automated system of abnormalities detection. This sorting is designed to support maintenance decisions in terms of the measure more appropriate to be applied per region. To illustrate the proposed model, an application was performed in a city with 100 thousand water connections. With this model it becomes possible to improve the allocation of maintenance measures for regions and mainly to improve the operation of the distribution network.

Water distribution network segmentation based on group multi-criteria decision approach

“…In some countries, there is a deficiency in the management of potable water use by the sanitation companies and it generates undesirable wastage such as physical and economic losses, which are due to, in some cases, the lack of planning of the water system maintenance (Trojan & Morais, 2012a). In this scenario, the supply of water has become of great concern worldwide because it is a scarce resource in many regions.…”

Decision model to control water losses in distribution networks

“…Issues relating to loss of water must be treated and managed with preventive measures aimed to improve the procedures for maintenance and operation of networks (Trojan & Morais, 2012). …”

“…According to Trojan & Morais (2012), problems encountered in the maintenance management of water supply are indicated by the lack of decision support models that give a manager an overview of the system. From this statement, this paper aims to analyze preventative actions related to maintenance of the water supply network to control water losses and build a portfolio of the best actions.…”

Maintenance Management Decision Model for Reduction of Losses in Water Distribution Networks

“…Silva et al (2010) used the multicriteria analysis to a group decision model to support watershed committees in Brazil. Trojan and Morais (2012a), developed a model where critical areas of losses were sorted in five classes of priority, arising from division of flow measurement areas.…”