ÇOK KADEMELİ BİR TEDARİK ZİNCİRİ AĞI İÇİN ÜRETİM-DAĞITIM VE TERSİNE LOJİSTİK PLANLAMASI
INTEGRATED PRODUCTION-DISTRIBUTION AND REVERSE LOGISTICS PLANNING FOR A MULTI-ECHELON SUPPLY CHAIN NETWORK

Summary/Abstract: As a general definition, supply chain is the system that includes the whole of the transactions that the product and service pass through from raw material to the end customer such as demand forecast, supply, production, inventory management, distribution, reverse logistic, etc. and flow of information and physical product. The separate planning of the processes in the Supply Chain Network may lead to wrong decisions due to the fact that the decisions made in each planning stage are chained to the other. However, if it is planned integrated when, where and how much a product on the network should be produced, when, how much and to where it should be distributed, and when, how much and from where should be collected, the more accurate decisions will be made in terms of cost and quality. In this study, an integrated production-distribution and reverse logistics planning model for a multi-echelon supply chain network is formulated. The proposed model considers a network consisting of a production facility and multiple distribution centers. The facility produces a single perishable product. A homogenous fleet of vehicles delivers the product from facility to distribution centers and collects return product from distribution centers to recycling center. The objective of the proposed mixed integer linear model is to minimize the total cost of production, inventory holding at facility and distribution centers and towards and reverse distribution.

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