Reza Jafari Nodoushan - Department of Health, Safety and Environment Management (HSE), School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Ali Reza Hajihosseini - Department of Industrial Engineering, Science and Arts University, Yazd, Iran.
Roozbeh Ahmadzadeh - Department of Industrial Safety Engineering Science and Arts University, Yazd, Iran.
Vida Sadat Anoosheh - Department of Occupational Health and Ergonomics, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.

Introduction: Accidents in the workplace hurt people and sometimes cause death. One of the ways to prevent occupational accidents is to change the behavior and attitude of people towards safety. The present study was conducted to investigate the effect of the lean approach on the promotion of safety culture in Sarv combined cycle power plant of MAPNA exploitation. Materials and Methods: In this study, to evaluate the safety culture before performing the lean approach interventions, a safety culture questionnaire was distributed among ۱۱۰ people who were randomly selected from ۲۹۴ employees of the company. The results were analyzed as pre-intervention data. Then, with the introduction of lean tools that can be implemented in the power plant and their selection by a group of managers who came together for this purpose, the necessary measures were defined and performed in line with the lean approach. After six months from the beginning of the intervention, the questionnaire was distributed and collected among the selected individuals in the second stage. Results: Based on the findings, safety culture had no significant relationship with the demographic data of the sample. The results of paired t-tests showed that the safety culture score increased in all dimensions after the intervention. As a result, the total safety culture score showed a significant increase compared to the safety culture score before the intervention. Conclusion: The findings indicated that the pure approach has a great impact on safety culture and it is important to pay attention to it.

Safety Management, Organizational Culture, Lean Safety Approach, Chadormelo.