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2017-02-02 - Colloque/Article dans les actes avec comité de lecture - Anglais - 18 page(s)

Brison Valérie , Pirlot Marc , "MCDA in environmental assessment contexts" in 31st Belgian Conference on Operations Research (ORBEL 31), Bruxelles, Belgique, 2017

  • Codes CREF : Modèles mathématiques d'aide à la décision (DI1151)
  • Unités de recherche UMONS : Mathématique et Recherche opérationnelle (F151)
  • Instituts UMONS : Institut de Recherche en Technologies de l’Information et Sciences de l’Informatique (InforTech), Institut des Sciences et du Management des Risques (Risques)
  • Centres UMONS : Centre de Recherche en Technologie de l’Information (CRTI)

Abstract(s) :

(Anglais) Multi-criteria decision aiding can be useful in environmental studies aiming to support decision making on environmental policies. For example, the ESNET (Ecosystemic Services NETworks) project aims at analyzing different scenarios of land-use in the horizon 2040 and their impacts on ecosystemic services (i.e., services provided by Nature). In this project, we have maps that represent the evaluation of the pixels on the considered services. We first want to aggregate the pixels evaluation at a commune level. Then, we have to aggregate the services into packages in a way that depends on the type of area considered (rural, forest or peri-urban area). We have several rules given by experts to assign the communes of the region under study to a category representing the quality of the package of ecosystemic services. Finally, we have to compare maps representing the state of the region under different scenarios. We shall present various multi-criteria models that were developed for helping to structure and solve such problems. The conditions of applicability of such models have been studied in a formal way (including axiomatics).