Hybird Fuzzy Decision Making Framework for Environmental Impact Assessment, Tangier, Morocco

AbstractThe purpose of this paper is to implement a methodology based on stakeholder’s judgment with assistance of fuzzy Multi-Criteria Decision Analysis (MCDA) methods to assess the environmental impact. Fuzzy Analytic Hierarchy Process (FAHP) is used as a multi-level decision-making tool taking into consideration human evaluation; it captures the vagueness in ordinal judgments obtained from stakeholder’s filled questionnaires and translates them into priorities which are not vague. Fuzzy ELECTRE III, known as the elimination and choice translating reality method is employed to opt for a solution to mitigate the assessed impacts. Soil, underground, surface water, underground water, air, aquatic ecology, terrestrial ecology, public health, view, economy are the ten sub-criteria used in environmental impact assessment, they are subject to the appreciations of six stakeholders groups which represent the main decision makers (DM): neighbors, enterprises, keys actors, state departments, medias and research institutions. The set of alternatives comprises the creation of a new landfill site, creation of a new ringroad, installation of a recycling unit, installation of a lixiviat unit, installation of a biogas unit and soil stabilization. The use of combined Stakeholder's analysis, Fuzzy AHP and Fuzzy ELECTRE III are the distinguishing features of this paper, they form an integrated decision aiding framework that constitutes its novelty. It is applied on the linguistic judgments values to assess the environmental impact. This work proposes an integrated decision-making approach applied in the case study of the urban waste landfill of Tangier city in north Morocco. KeywordsEnvironmental Impact Assessment (EIA); Fuzzy AHP; Fuzzy ELECTRE III; Stakeholders