Logistics εμβολιασμού : χωροθέτηση κόμβων αποθήκευσης εμβολίων και τροφοδοσία εμβολιαστικών κέντρων
Vaccine logistics : facility location and supply of warehouses and vaccination centers

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Keywords
Logistics εμβολιασμού ; Facility location problem ; Suply chain managment ; Μεικτός ακέραιος προγραμματισμός ; Hub location problemAbstract
This thesis studies the development of a model who finds the optimal location of intermediate storage centers for vaccines against the Covid-19 virus in the prefecture of Attica. To optimize the corresponding supply chain, a literature review on the corresponding problem (i.e., facility location) has been conducted. Then, using mixed integer programming, the problem is modeled as a Hub location problem. The locations of the vaccination centers located in Attica are used as data and it is assumed that the candidate intermediate nodes are located in five directions of the prefecture where the majority of the storage centers are located. The model is built in IBM's CPLEX software with the results obtained after the first run showing that the two optimal intermediate storage sites for vaccine formulations are located in the Koropi and Tavros regions.