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A multiobjective model for the dynamic location of landfills. (English) Zbl 0916.90181
Summary: The passage of the Resource Conservation and Recovery Act of 1976 and its subsequent renewals triggered controversies over where potentially hazardous garbage should be deposited. Such controversies originated from decade-long conflicts between the government agency seeking cost savings and the general public seeking safe environments. The controversies will go on without a settlement, unless more systematic and realistic decision-aid tools for locating landfills are developed which consider a multitude of dynamic factors affecting the location decision and then make trade-offs among them. These factors may include garbage collection services for regional communities, the explicit and hidden costs of developing landfills, transporting and disposing garbage, long-term health and safety hazards for neighboring residents and ecosystems, negative impacts on the regional economy, equity concerns and so forth. As an effective decision-aid tool that can incorporate these conflicting factors, we develop a dynamic (multiperiod), multiobjective mixed integer programming model. The model is tested in a hypothetical case resembling a real world scenario and the results are interpreted to provide insights into the multiobjective and dynamic nature of the model. Efficient alternatives are generated, using the weighting method, and reduced using a filtering method.

90B80 Discrete location and assignment
90B50 Management decision making, including multiple objectives
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