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Human error probability assessment during maintenance activities of marine systems

Islam, Rabiul, Khan, FI ORCID: 0000-0002-5638-4299, Abbassi, R ORCID: 0000-0002-9230-6175 and Garaniya, V ORCID: 0000-0002-0090-147X 2017 , 'Human error probability assessment during maintenance activities of marine systems' , Safety and Health at Work, vol. 9, no. 1 , pp. 42-52 , doi:

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Objective: The objective of this study is to develop Human Error Probability model considering various internal and external factors affecting the seafarers’ performance.Background: Maintenance operations on-board ships are highly demanding. Maintenanceoperations are intensive activities requiring high man-machine interactions in challenging and evolving conditions. The evolving conditions are weather conditions, workplace temperature, ship motion, noise and vibration and workload and stress. For example, extreme weather condition affects the seafarers’ performance hence increasing the chances of error and consequently, can cause injuries or fatalities to personnel. An effective human error probability model is required to better manage maintenance on board ships. The developed model would assist in developing and maintaining effective risk management protocols.Method: The human error probability model is developed using probability theory applied to Bayesian Network. The model is tested using the data received through the developed questionnaire survey of more than two hundreds experienced seafarers with more than five years of experience. The model developed in this study is to find out the reliability of human performance on particular maintenance activities.Results: The developed methodology is tested on the maintenance of marine engine’s cooling water pump for engine department and anchor windlass for deck department. In the considered case studies, human error probabilities are estimated in various scenarios and the results are compared between the scenarios and the different seafarer categories. The results of the case studies for both departments are also compared.Conclusion: The developed model is effective in assessing human error probabilities. These probabilities would get dynamically updated as and when new information is available on either internal (i.e. training, experience and fatigue) or external factors (i.e. environmental and operational conditions such as weather conditions, workplace temperature, ship motion, noise and vibration and workload and stress) changes.

Item Type: Article
Authors/Creators:Islam, Rabiul and Khan, FI and Abbassi, R and Garaniya, V
Keywords: reliability assessment, maintenance operation, marine system, human factors, human probability
Journal or Publication Title: Safety and Health at Work
Publisher: Occupational Safety and Health Research Institute
ISSN: 2093-7911
DOI / ID Number:
Copyright Information:

Copyright 2017 Occupational Safety and Health Research Institute. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

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