Volume 6, Issue 3 (Autumn 2019)                   johe 2019, 6(3): 34-43 | Back to browse issues page


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Mirzaei Aliabadi M, Esmaeili R, Mohammadfam I, Ashrafi M. Application of a Standardized Plant Analysis Risk-human Reliability Method to Pipeline Inspection Gauge Operations. johe 2019; 6 (3) :34-43
URL: http://johe.umsha.ac.ir/article-1-496-en.html
1- Center of Excellence for Occupational Health, Occupational Health and Safety Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
2- Center of Excellence for Occupational Health, Occupational Health and Safety Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran , rezaesmaeili794@yahoo.com
3- Industrial Engineering and Management Systems Department, Amirkabir University of Technology, Tehran, Iran
Abstract:   (4586 Views)
Background and Objective: Pipeline inspection gauge operation which is called “pigging operation” is a practical online monitoring method for maintaining the pipeline in a healthy and safe condition. This operation requires high man-machine interactions. Therefore, it is sensitive to human error which can lead to catastrophic consequences, including human mortality.
Materials and Methods: This descriptive study was carried out to assess the probability of human error in pigging operation in a gas transmission plant in Iran. Initially, hierarchical task analysis was conducted via walking through the pigging operation, observing the pigging operation tasks, and doing interviews with operators working in the operation. Subsequently, the Standardized Plant Analysis Risk-Human Reliability Analysis (SPAR-H) was utilized to assess the human error probability.
Results: In this study, SPAR-H method was implemented on “pigging operation”. The mean value of human error probability (HEP) was estimated at 0.218. It should be noted that the mean value of HEP was regarded as a subtask of “opening bypass valve for decreasing pressure”, as well as a subtask with the highest probability of human error (0.841).
Conclusion: The SPAR-H method is a useful tool for practitioners to assess HEP. According to the obtained results, some of the preventive actions to reduce HEP include the utilization of more clarified instructions for performing operations as well as the automation of the launching and receiving pigging cups.
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Type of Study: Research Article | Subject: Safety

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