Özet:

This study addressed the two-stage location selection and the simultaneous mass-distribution vehicle rotation problem (2A/YS-ETDARP). In this problem, the goal is to determine which facilities will be installed in which candidate areas with the lowest cost in a two-stage distribution network consisting of factory, warehouse and customers and how rotating activities will take place in each stage. The rotating activities are two-way and the distribution to customers from primary facilities (factory) to secondary facilities (depo) and from secondary facilities includes the collection activities to be sent from customers to secondary facilities and from secondary facilities to primary facilities. For the solution of 2A/YS-ETDARP, a mixed summary mathematical model based on two indices is recommended. As the problem belongs to the NP-Zor class, a solution based on the Clarke-Wright algorithm for the solution of large-scale problems has been developed. A experimental study was conducted on different data sets obtained from literature to assess the performance of intuitive algorithms. Experimental studies have shown that intuitive algorithms have achieved quite good solutions for medium and large-scale problems in a short time.

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