Görçün, Ömer FarukGorcun, Omer FarukKundu, PradipKucukonder, HandeSenthil, S.2024-06-232024-06-23202400029-80181873-5258https://doi.org/10.1016/j.oceaneng.2024.117788https://hdl.handle.net/20.500.12469/5745küçükönder, hande/0000-0002-0853-8185Selecting appropriate LNG tankers is paramount in the maritime sector. Opting for suitable second-hand LNG vessels is a significant and efficient strategy for managing transportation operations effectively and meeting industry standards. Given LNG tanker specifications and shipbuilding capacity, the second-hand LNG tanker market adequately meets maritime industry demands. Thus, there is a strong motivation to evaluate the current second-hand vessel market. However, uncertainties prevail, necessitating decision-makers to employ a resilient and practical methodological framework to address uncertainties and complex decision-making scenarios effectively. This study proposes a decision-making framework integrating the Delphi and Additive Ratio Assessment (ARAS) methods, leveraging interval type-2 fuzzy sets (IT2FSs). This framework resolves real-life challenges associated with selecting second-hand LNG tankers, demonstrating the practicality of the approach. Using IT2FSs, the Delphi method identifies critical criteria influencing second-hand tanker vessel selection. "Cargo carriage capacity" emerged as the most influential criterion, followed by "purchasing costs" and "year of construction." Moreover, "Mediterranean Energy" was deemed the most suitable second-hand LNG tanker among the six alternatives assessed. Thorough sensitivity analysis validated the proposed model and its implications, confirming its validity and applicability.eninfo:eu-repo/semantics/closedAccessLNG tanker selectionSecond-hand LNG tanker marketMCDMInterval type-2 fuzzy setsARASArticle303WOS:00122595630000110.1016/j.oceaneng.2024.1177882-s2.0-85189757848Q1Q1