Modelling and simulation of multi-compartment vehicle routing problems to transport different types of solid waste Online publication date: Fri, 28-Jun-2024
by Yousra Bouleft; Ahmed Elhilali Alaoui
International Journal of Operational Research (IJOR), Vol. 50, No. 3, 2024
Abstract: The waste management problem is an important sign of development in every city in the world. In this work, we introduce a new scheme that divides the entire waste management system into three levels: 1) transfer separated solid waste from different sources to the compartmentalised transfer station, each compartment accommodating one or more supplies of the same type of waste; 2) transport the separated solid waste from the transfer station to the treatment plants, each plant belonging to a specific specialty via a compartmentalised fleet; 3) transfer the waste produced from the treatment plants to the nearest landfill. In this context, we present mathematical formulations of the waste management system using linear programs. Since the problem is NP-hard, we adapt a genetic algorithm to solve the second level. Numerical experiments show that after adapting our proposed approach, we get high-quality solutions to collect and transport a large quantity every day.
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