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Nowadays, congestion and pollution are challenging urban transportation systems. Low emission zones and e-commerce force distribution networks to become more flexible and efficient. The well-known Vehicle Routing Problem and its variants such as the Multi-Echelon Vehicle Routing Problem offer prospects for improvement in City Logistics. Based on the existing models, a new model is presented: the Multi-Echelon Multi-Satellite Multi-Product Capacitated Vehicle Routing Problem with one-day delay allowed. For the purpose of submitting a sustainable distribution network, a predominantly green freight is chosen to operate in the city and its suburban area. A local search based metaheuristic is developed to solve the model and evaluate the impact of the delay. The model and solving method are tested on realistic data on Liège-Namur area.

Multi-echelon vehicle routing problem --- Local search --- Metaheuristic --- Urban distribution network --- Sciences économiques & de gestion > Production, distribution & gestion de la chaîne logistique