Integrated sustainability assessments: a spatial multicriteria evaluation for siting a waste incinerator plant in the Province of Torino (Italy)
2012
Ferretti, Valentina | Pomarico, Silvia
The present paper proposes a spatial multicriteria approach for supporting decision makers in the siting process of a waste incinerator plant in the Province of Torino (Italy). Municipal solid waste management is an intrinsically complex problem because it involves different interconnected elements and must achieve objectives that are often in conflict. Given the spatial nature of the problem, a useful support is provided by a family of methods that are rapidly gaining traction for planning and policy-making, named multicriteria spatial decision support systems, which are based on geographical information systems and multicriteria analysis coupling. In the present study, a methodological framework is proposed for the integration of geographical information systems with a specific multicriteria analysis technique, named Analytic Network Process. The method is illustrated with reference to a case study in the Province of Torino. The purpose of the research is to generate a suitability map of the area under analysis in order to locate a municipal solid waste incinerator plant. The application allows the dependence relationships between the criteria to be assessed and the relative importance of all the elements to be evaluated. The results are obtained in the form of maps analyzed through the ILWIS 3.3 GIS software and have been further verified through a “what-if” analysis with reference to the clusters priorities in order to test the robustness of the model. The implementation of the spatial Analytic Network Process technique gives an originality value to the present research since it represents one of the first applications at both the national and international levels.
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