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    Environmental considerations in the selection of transport vehicles: a fuzzy FUCOM method
    (Emerald Group Publishing Ltd, 2025) Yuruyen, Ali Aygun; Ulutas, Alptekin; Demirhan, Azize; Ozsalman, Emre
    PurposeBusinesses are starting to prioritize environmental concerns more when conducting their operations due to increasing awareness of environmental degradation and legal obligations. Thus, companies must take into account a variety of factors when buying the equipment that they need to carry out their operations. More importantly, these factors need to be properly considered because buying a vehicle is a costly decision.Design/methodology/approachThe study was conducted in a logistics company operating in Ankara. The data collected were obtained from five experts working as senior managers in this logistics company using an e-mail survey method, one of the modern survey types. In the study, a mixed decision-making approach based on subjective criteria expressed linguistically in an environment of uncertainty was adopted, and fuzzy full consistency method (F-FUCOM) was used to prioritize criteria by integrating environmental factors into the criteria that logistics companies take into account when selecting transportation vehicles. In total, 4 main and 17 sub-criteria were evaluated according to the decision-makers' perspectives.FindingsThe study's result shows that the main criterion with the highest importance was environmental, while the main criterion with the lowest importance was cost. Furthermore, vehicle life was found to be the most important sub-criterion, which is one of the environmental main criteria, while the vehicle's net weight was found to be the least important sub-criterion, which is one of the equipment main criteria.Originality/valueThe role of environmental criteria and multi-criteria decision-making approaches in transportation vehicle selection remains underexplored in the literature. Moreover, the F-FUCOM approach has not been applied to such complex problems. This study addresses these gaps by incorporating environmental factors into a comprehensive methodological framework, advancing both theory and practice in the field.
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    Evaluating the Logistics Performance of One Belt One Road Project Countries with Multi Criteria Decision Making Methods
    (Mehmet Akif Ersoy Univ, 2025) Yuruyen, Ali Aygun; Altay, Huseyin
    Logistics is significant for national governments to evaluate the activities, functions and elements of the existing country-level logistics system to develop competitive advantage. The Logistics Performance Index (LPI) is one of the most reliable reports used to evaluate logistics performance at the country level. In this study, a new hybrid model using the SIWEC, CRITIC, LOPCOW and MACONT methods from the Multi-Criteria Decision Making (MCDM) methods is proposed to measure the logistics performance of the countries located in the northern, southern and central corridors of the One Belt, One Road Project (OBORP) connecting Asia to Europe. SIWEC, CRITIC, and LOPCOW methods were used to calculate the objective weights of the criteria for each corridor. The MACONT method was employed to rank the countries based on their logistics performance for each corridor. According to the combined criteria weights, the most important criterion in the northern corridor was international shipping, while the least crucial criterion was customs. The most crucial criterion in the southern corridor was customs, while the least crucial criterion was tracking and tracing. In the middle corridor, the most crucial criterion was tracking and tracing, while the least crucial criterion was logistics quality and competence. Owing to the analysis made with the MACONT method, Germany was the country that showed the best logistics performance in all three corridors. The results obtained for each corridor using the decision-making approach offered in the study were compared with other alternative assessment methods such as MARA, ARAS, COPRAS, GIA, EDAS and OCRA to ensure the validity and robustness of the findings. Based on the comparison, it was observed that the results obtained for each corridor were quite similar, and the proposed approach gave consistent results.