This paper addresses the planning of recyclable waste collection systems while accounting for economic and environmental concerns. Service areas and vehicle routes are defined for multiple-depot logistics networks where different products have to be collected. The problem is modeled as a multi-product, multi-depot vehicle routing problem with two objective functions: distance and CO2 emissions minimization. A decomposition solution method is developed and applied to a real case-study. Six scenarios are studied regarding different service areas configuration and different objective functions. Savings up to 22% in distance and 27% in CO2 emissions are achieved, excelling economical and environmental goals.

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Greenhouse gas emissions,Service areas,Vehicle routing problem,Multiple depots,Multiple products,Recyclable waste collection

• Engenharia Civil - Engenharia e Tecnologia
• Economia e Gestão - Ciências Sociais
• Geografia Económica e Social - Ciências Sociais