Tactical planning of procurement of a supply chain with environmental concern
Résumé
In this paper, we study the economic and environmental aspects of the tactical procurement planning of an industrial plant within a supply chain, corresponding to a real case of a European company. A procurement plan is obtained by solving an integer linear programming model. Two objectives are used: the first is to minimize the total cost including transportation, handling, and inventory holding cost, while the second is to minimize the CO2 emissions from transport taking into account the distance and the loads of the vehicles. Experimentations performed on the basis of real industrial data validate the approach and allow the analysis of tradeoffs between the two objectives.