Assessing the influence of safety climate-related factors on safety performance using an Integrated Entropy-TOPSIS Approach

This research investigated the effects of safety climate and psychosocial safety climate factors on safety performance of employees in a process industry. Operators and supervisors of control rooms participated in this study, and the collected data were analyzed by multi-criteria decision-making (MCDM) approaches. The entropy approach was employed to prioritize safety climate and psychosocial safety climate factors. Moreover, the technique for order preference by similarity to an ideal solution (TOPSIS) got applied to rank the alternatives. The findings obtained by the entropy approach showed that "rule breaking" (among safety climate factors) and "organizational communication" (among psychosocial safety climate factors) had the greatest influence on safety performance of employees, respectively. TOPSIS results revealed that supervisors experienced a greater degree of safety performance than operators. The findings of this study demonstrated that safety professionals should consider both safety climate and psychosocial safety climate factors to promote safety performance in high-hazard process facilities.