Mohammad Khandan - Research Center for Environment Pollutants, Qom University of Medical Sciences, Qom, Iran
Shahram Vosoughi - Department of Health Sciences, Faculty of Health, Safety and Environment, Shahid Beheshti University of MedicalSciences, Hakimieh, Tehran, Iran

Background & Aims of the Study: To prevent lots of work-related accidents in differentindustries and workplaces, managers should consider macro-factors such as safety cultureand its elements like safety climate as the main subject to reflect attitude toward safety .This study aimed at finding the best work shift group in an Iranian process industry bysafety attitude/climate analysis conducted in 2010.Materials and Methods: Through a cross-sectional study 151 workers were selected inorder to fill the safety climate questionnaires. After gathering safety climate questionnaires,the statistical tests of T-test, ANOVA and Pearson correlation were used through SPSS V16to analysis data. To find the best work shift group TOPSIS method was also utilized.Results: 134 out of 151 completed questionnaires were valid, making the response rate%88.74. Questionnaire’s reliability was assessed by Cronbach’s Alpha to be 0.928. Themean score of safety climate was 154.84 while the maximum score could be 245.Furthermore, 68.7% of workers had positive safety climate. A significant relationship wasfound between age and safety climate (P< 0.05).Conclusion: The most effective and least attractive alternatives shift groups forintervention were selected in this company using TOPSIS method. By taking into accountvariant effects of accidents in process industries in different categories such as personalinjuries/death, damage to property, and effects on environment and community, the resultsshowed the importance of attention to safety principles and developing a positive attitudeamong employees with regard to safety.

Safety Attitude,Process Industry,Multi Criteria DecisionMaking (MCDM),TOPSIS,Workers’ Safety,Iran