Department of Mechanical Engineering

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Safety Risk Assessment in Manufacturing Systems: An Analytic Hierarchy Process Approach
(International Journal of Engineering Research and Applications, 2022) Sanyaolu, Olufemi
Safety risks in the manufacturing sector affects activities in manufacturing operations. A poor safety culture results in unplanned downtime in production, accidents, injuries and lost time incidents. Safety risk assessment of manufacturing systems using the Analytical Hierarchy Process (AHP) was carried out in this study. Hazard identification and risk ranking was done using a structured questionnaire to identify the hazards which include rolling/moving shaft, wet floor due to oil leaks and water spillage, clouds of dust, steam leakages/pressurized hose leakages, bad machine guarding, noise, fire, open drains, transporting/carrying heavy loads, lifting heavy loads above shoulder height and poor housekeeping. The risk analysis of these hazards indicated Risk Priority Numbers (RPN) ranging from 2 to 16. The analytic hierarchy process (AHP) for the safety risk assessment was carried out using three criteria, namely; human(employee) safety (HS), machine(equipment) safety (MS) and work environment safety (WES). Each criterion has sub-criteria which were found to be consistent after the AHP analysis, thus, it can be used for decision making. This study identified hazards and risks associated with manufacturing systems and analyzed the safety risks by using the analytic hierarchy process (AHP) approach.