Deterioration of water distribution systems and the optimal allocation of limited funds for their rehabilitation represent crucial challenges for water utility managers. Decision makers should be provided with a set of "informed" solutions to select the best rehabilitation plan with regard to available resources and management strategies. In a risk-based scenario, such an approach should result in an element-wise prioritization scheme based on individual pipe rehabilitation/replacement urgency. This article describes a framework for devising a short-term decision support tool for pipe replacement. The approach allows for the introduction of economic, technical and management rationales as separate objectives to produce a pipe-wise prioritization scheme which is achieved by ranking pipes selected during a multi-objective evolutionary optimization of replacement scenarios. Such a procedure overcomes the drawbacks of relying on solutions obtained by evolutionary multi-objective optimization. The effectiveness of the entire framework is demonstrated on a real UK water distribution system.
Exploiting multi-objective strategies for optimal rehabilitation planning / Berardi, L.; Giustolisi, O.; Primativo, F.. - STAMPA. - (2007), pp. 23-30. (Intervento presentato al convegno Computer and Control in Water Industry, CCWI2007 tenutosi a Leicester, UK nel September 3-5, 2007).
Exploiting multi-objective strategies for optimal rehabilitation planning
Berardi, L.;Giustolisi, O.;Primativo, F.
2007-01-01
Abstract
Deterioration of water distribution systems and the optimal allocation of limited funds for their rehabilitation represent crucial challenges for water utility managers. Decision makers should be provided with a set of "informed" solutions to select the best rehabilitation plan with regard to available resources and management strategies. In a risk-based scenario, such an approach should result in an element-wise prioritization scheme based on individual pipe rehabilitation/replacement urgency. This article describes a framework for devising a short-term decision support tool for pipe replacement. The approach allows for the introduction of economic, technical and management rationales as separate objectives to produce a pipe-wise prioritization scheme which is achieved by ranking pipes selected during a multi-objective evolutionary optimization of replacement scenarios. Such a procedure overcomes the drawbacks of relying on solutions obtained by evolutionary multi-objective optimization. The effectiveness of the entire framework is demonstrated on a real UK water distribution system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
