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- Title
Method of human factor minimization in expert judgement for occupational risk assessment and decision making.
- Authors
Kruzhilko, Oleg; Bogdanova, Olga
- Abstract
Introduction. The purpose of research - to minimize the subjectivity of expert methodology in occupational risk management by the use of impartial risk-relevant information and theoretically substantiated decision-making. Materials and methods. The health and safety management system in the tobacco manufacturing factory is being observed during 6 years. The modified risk matrix method has been advanced up to the component method of risk-relevant information assessment. Method of multi-criterial decision analysis for risk reduction was strengthened with the application of Hurwitz criterion in terms of uncertainty. Results and discussion. The survey of the health and safety management system at the tobacco factory (2009-2016) has demonstrated the difference between traumatic factors highly ranked by experts (exposed to or contact with a harmful substance", including noise and dust in the working area) and factors that caused lost time accidents at the site (moving parts of machinery, fell from height). This difference is caused primarily by the subjective component in the expert assessment. To minimize the human failure in judgment the following risk assessment scheme was proposed: 1. The riskrelevant impartial information available at the site was taken into account. It included in addition to the modified matrix method outcomes, the external and internal audit recommendations, near misses, the manufacturing statistics of lost time injuries and fatalities. 2. The information was reduced to common denominators - 18 traumatic events, and an averaging mass risk distribution within risk-relevant components was calculated. 3.The risks ranked as unacceptable and intermediate are to be managed using hierarchy of risk reduction, for this purpose and health and safety professionals have prepared an array of measures for the each step of hierarchy. 4. The expert group has judged them using 5 criteria and the weighting factors, and the Hurwitz criterion was used to overcome the uncertainty. 5. The highly ranked substantiated measures were chosen by them to be a basis of a planning process at the site health and safety management system. The information analysis computer system is used to facilitate the practical implementation. Conclusions. It is recommended to use the advanced expert system with the suppressed human factor for risk management in the occupational health and safety management systems in food and tobacco manufacturing.
- Subjects
DECISION making in business; RISK management in business
- Publication
Ukrainian Journal of Food Science, 2016, Vol 4, Issue 1, p138
- ISSN
2310-1008
- Publication type
Article