Abstract
This paper presents a brief description of some existing models of facility location problems (FLPs) in solid waste management. The study provides salient information on commonly used distance functions in location models along with their corresponding mathematical formulation. Some of the optimization techniques that have been applied to location problems are also presented along with an appropriate pseudocode algorithm for their implementation. Concerning the models and solution techniques, the survey concludes by summarizing some recent studies on the applications of FLPs to waste collection and disposal. It is expected that this paper will contribute in no small measure to an integrated solid waste management system with specific emphasis on issues associated with waste collection, thereby boosting the drive for effective and efficient waste collection systems. The content will also provide early career researchers with some necessary starting information required to formulate and solve problems relating to FLP.
Highlights
One of the critical issues that borders on solid waste management in developing countries is centered on the collection of waste
Daskin [34] proposed an integer programming (IP) model for the Undesirable Facility Location Problem (UFLP) with the following parameters: P is the number of expected facilities to be opened; σi is the demand of customer i; dij is the distance between customer i and facility j; xj is the same as in Section 4.5.1; yij = 1 if the requirement of customer i is satisfied by facility j, and 0, if otherwise
This paper presents a brief survey of literature on facility location problems (FLPs)
Summary
One of the critical issues that borders on solid waste management in developing countries is centered on the collection of waste. An extensive range of models exists in the literature for describing practical problems of optimization involving service point locations in waste management, and some of these mathematical formulations are discussed in this study (see [6,7,8,9,10,11,12,13,14,15,16,17,18] for examples). Technological advancement has made it somewhat easier to design cost-efficient facility locations for municipal solid waste collection especially for large areas.
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