Human Health Risk Analysis in the Health, Safety, and Environment Using EFMEA & SHERPA Integrated Methods (Case Study: Car Seat Production Company)

Human errors in a work place are inevitable which can become an irrecoverable damages. As a result this study is done in car-seat manufacturing company to identify and predict human errors beside environmental risks, develop a method to control and reduce human risks, and respecting critical risk levels using SHERPA and EFMEA methods. The current study is a scientific research conducted in a car-seat manufacturing company. In order to fill the SHERPA and EFMEA inspection, interviewing with procedures experts, interviewing with work station operators, and hierarchical analysis of HTA duty which is a preface to analyze human errors are used. The approach to predict and reduce human errors is used to reduce potential human errors in workstations and assessing environmental risks for different aspects of environment. Then controlling strategies were developed. SHERPA forms show that all the human errors in working tasks are 43 observations which 53.46% are performance errors, 27.90% are reviewing errors, 13.94% are retrieval errors, and 4.64% are selective errors. Evaluation of environmental risks using EFMEA shows that from 14 environmental risks 42.85% are critical (H), 21.42% are medium, (M) and 35.71% are low (L). The most significant error in car-seat manufacturing company is related to performance and then reviewing errors. The major numbers of environmental risks are related to coloring unit output. As a result employees and supervisors training, publishing guidelines for supervising and auditing operators, and proper act in case of deficiency happening in this company are prioritized between corrective actions.