Browsing by Author "Bayram, Serkan"

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Yanal aktarma politikalarının tedarik zinciri ağları için çok amaçlı en iyileme ve benzetim modellerine etkisi
(2020) Bayram, Serkan; Mullaoğlu, Gizem
Supply chain systems play a crucial role to meet customer demands on time, especially in competitive markets. Nowadays, these systems have to consider the environment as much as economical perspectives because of the increase in carbon emission awareness and possible future regulations. Therefore, in this thesis, we developed a multi-objective mixed-integer programming and simulation models while allowing lateral transshipment distribution strategy which provides product transportation within the echelons. Also, electric vehicles are considered in these models to give more opportunities to reduce carbon emissions. As a result of these models' computational studies, it has been observed that lateral transshipment could increase the efficiency of the supply chain. However, it has been noticed that when carbon emission is more superior to the total cost, less lateral transshipment occurs. Therefore, we can conclude that even though lateral transshipment provides efficiency in the total cost, it is less favorable when carbon emission is more important. Moreover, it has been observed that electric vehicles have a positive effect on total carbon emission and total cost as expected. Hence, electric vehicles can play a crucial role in the supply chain system if they can be integrated more in line with lateral transshipment policies.