Location and allocation optimization for integrated decisions on post-disaster waste supply chain management: On-site and off-site separation for recyclable materials

Chawis Boonmee · Mikiharu Arimura · Takumi ASADA

58 citations0/0 files storedInternational Journal of Disaster Risk Reduction

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Facility Location and Emergency Management Municipal Solid Waste Management Vehicle Routing Optimization Methods

Abstract

Post-disaster waste management is one of the most important operational management systems that have been developed to help affected communities recover and restore conditions back to a stable situation after a disaster. An effective post-disaster waste management strategy still needs to be further developed for optimum efficiency. Hence, this paper aims to present the developed system of post-disaster waste supply chain management strategy (PWSCM) along with the integrated decision-making system for the on-site and off-site separation of recyclable materials. A mathematical model of mixed-integer linear programming is proposed in which the objective aims are to minimize the financial effects through assessment of the fixed costs and variable costs, RSR (Reduction, Separation and Recycling) costs, and the penalty costs associated with the negative environmental and human effects of post-disaster scenarios and to maximize revenue from any sellable waste. The proposed model considers all networks in the debris operation process that consists of waste collection and separation sites, processing and recycling sites, disposal sites and market sites. Moreover, the RSR technologies have also been considered in the proposed model. Due to the limitations of competence of an exact solution method for such a large problem, this study also presents two effective metaheuristic approaches with particular encoding and decoding schemes; Particle Swarm Optimization (PSO) and Differential Evolution (DE) to solve PWSCM. Finally, the numerical tests for PWSCM improvement will be discussed. The performance of the proposed PWSCM improvement system was superior to both the on-site separation model and the off-site separation model.

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References

2005OR/MS research in disaster operations management 2011Optimization models in emergency logistics: A literature review 2015Introduction to International Disaster Management 2013Review of recent developments in OR/MS research in disaster operations management 2017Facility location optimization model for emergency humanitarian logistics 2011Introduction to International Disaster Management 2016Stochastic optimisation model for integrated decisions on relief supply chains: preparedness for disaster response 2013Post-disaster debris reverse logistics management under psychological cost minimization

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