Using the event tree analysis in the investigation of a work accident

摘要

Work accidents occur when the system doesn’t work properly and the safety barriers are avoided. The analysis of such events can be made by different methods. This paper aims at demonstrating how a work accident can be investigated by the use of the Events’ Tree decision method. Applying the steps of the algorithm, the method leads to determinate the causes of a work accident that occurs during the starting procedure of an equipment. By building the events’ tree, a graphical representation of the operations and decisions lead to a logical framework that explains the work accident. The case study consists of the description, analysis, investigation and mitigation of a work accident that occurred at the Rehabilitation of a road in Arad County. Using the Events’ Tree decision method, the cause of the accident was found to be the weak training of the operator and the carelessness of the job manager.