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Solving the integrated bin allocation and collection routing problem for municipal solid waste: a Benders decomposition approach

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Abstract

The municipal solid waste system is a complex reverse logistic chain which comprises several optimisation problems. Although these problems are interdependent—i.e., the solution to one of the problems restricts the solution to the other—they are usually solved sequentially in the related literature because each is usually a computationally complex problem. We address two of the tactical planning problems in this chain by means of a Benders decomposition approach: determining the location and/or capacity of garbage accumulation points, and the design and schedule of collection routes for vehicles. Our approach manages to solve medium-sized real-world instances in the city of Bahía Blanca, Argentina, showing smaller computing times than solving a full MIP model.

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Notes

  1. Mainly capacity, but could also be cost.

  2. A similar consideration is performed in Hemmelmayr et al. (2013).

  3. Making it, de facto, a no-good cut.

  4. https://www.openstreetmap.org/.

  5. We use the complete problem (M1) augmented with valid inequalities Eqs. (3.2) to (3.4). The Benders cuts we generate are “optimality cuts” given by Equation (4.4b).

  6. To the best of our knowledge, in Argentina the largest bin that allows rear-loading is about 1.1m\(^3\).

  7. Converted using the official exchange rate of Argentina (Banco Central de la República Argentina, 2021).

  8. Performing certain simplifications, the service time of the bin combinations can be estimated assuming that types of bin I, II, and III that are used in this article correspond to the systems S4, S1, and S2 used in Carlos et al. (2019), respectively.

  9. http://project-osrm.org/

  10. That in reality is about five hours.

  11. Instances can be retrieved from https://github.com/diegorossit/Set-of-instances-Mah-o-et-al.-2021---ANOR

  12. https://gitlab.com/Soha/brandec

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Acknowledgements

The second author was supported by the 2018 Australia-Americas PhD Research Internship Program, co-financed by the Australian Academy of Science, the Ministry of Foreign Affairs and Worship of Argentina and the Universidad Nacional del Sur.

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Correspondence to Diego Gabriel Rossit.

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Mahéo, A., Rossit, D.G. & Kilby, P. Solving the integrated bin allocation and collection routing problem for municipal solid waste: a Benders decomposition approach. Ann Oper Res 322, 441–465 (2023). https://doi.org/10.1007/s10479-022-04918-7

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  • DOI: https://doi.org/10.1007/s10479-022-04918-7

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