Özet:

Petroleum and petroleum products maintain their importance in the world economy. Therefore, there is a need to establish new petrol stations or to improve the existing ones in order to meet the need for oil. In this study, the location selection problem for a petrol station is investigated. Location selection problems are solved by Multi-Criteria Decision Making (MCDM) methods. When the studies in the literature are examined, it is seen that fuzzy set-based approaches are preferred in order to clarify the uncertainty in the answers of the decision makers. Therefore, in this study, q-level fuzzy set-based methods are used to present a more objective ranking approach. In the proposed approach, q-Rung Orthopair Fuzzy Technique for Order Preference by Similarity to an Ideal Solution (q-ROF TOPSIS) and q-Rung Orthopair Fuzzy Combined Compromise Solution (q-ROF CoCoSo) methods were used. The proposed approach is evaluated to solve the site selection problem for a petrol station installation in Adana. Ten criteria, both found in the literature and original, were determined for the study. After weighting the criteria, 3 expert opinions were consulted to rank 5 candidate locations with different station types. The results of the study were interpreted, sensitivity analysis was conducted and the effect of the parameters on the result was examined.

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