A hybrid Fine–Kinney–intuitionistic fuzzy TODIM model for offshore helideck risk assessment

Assessing and managing risks in offshore helideck operations is critical due to dynamic and hazardous conditions. This study introduces a hybrid risk assessment framework that combines the Fine–Kinney method with an intuitionistic fuzzy extension of the TODIM approach, representing the first integration of these two techniques for helideck safety evaluation. The Fine–Kinney method was applied to compute risk scores based on probability, exposure, and consequence, while the TODIM technique facilitated risk prioritization by reflecting decision-maker preferences. To handle uncertainty in expert evaluations, intuitionistic fuzzy sets (IFSs) were employed. The results revealed that turbulence and high wind speeds were the most critical factors, with dominance scores of 0.86 and 0.79, followed by human-related issues. In contrast, structural and inspection-related risks were perceived as less severe. The proposed model enhances the reliability of helideck risk prioritization and can support more effective safety decisions.