If anyone wants to prevent similar accidents with the basis of industrial accidents already occurred in industrial plants, it would be possible only after true causes are grasped. Unfortunately, however, most accident investigation carried out with th...
If anyone wants to prevent similar accidents with the basis of industrial accidents already occurred in industrial plants, it would be possible only after true causes are grasped. Unfortunately, however, most accident investigation carried out with the basis of legal regulation failed to grasp them so that similar accidents have been repeated without cease.
This thesis aimed to find out differences between results from conventional accident investigation and those from human error analysis, and to draw out effective and practical counter-plans against industrial accidents occurred repeatedly in Autoglass manufacturing Process.
As for analysis, about 110 accident cases that occurred for last 7 years were collected, and by adopting the integrated human error analysis technique developed by the previous researchers, not direct causes but basic fundamental causes that might induce workers to human errors were sought. In consequence, the result showed that facility factors or environmental factors such as improper layout, mistakes in engineering design, and malfunction of interlock system were authentic major accident causes as opposed to managerial factors such as personal carelessness or failure to wearing personal protective equipments, and/or improper work methods.
In addition, based on the accident cost analysis, it could be said that the enterprise would be get major payments in relation to production loss including stoppage of manufacturing lines, and that indirect cost would be 10 times as much as direct costs. To write down about accident type especially, crush would be the most dreadful accident type since indirect cost was about 19 times as much as direct cost.
Therefore, it was concluded that the conventional estimation of accident cost with the base of 1:4 ratio developed by Heinrich would be no longer applicable, and that the enterprises should invest for work improvements more aggressively if they really want to effective accident prevention.