2016•The Proceedings of Mechanical Engineering Congress JapanOpen access
Study on the analysis method for accidents caused by human error
Atsushi Hashimoto, Nobuo Mitomo
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Abstract
This paper presents the analysis method for accidents caused by human error. Recently, accidents caused by human error have occurred in a variety of fields such as nuclear power, chemical, aviation, and maritime. However, the analysis method for these accidents has not been established yet. On the other hand, PRA (Probabilistic Risk Assessment) is a technique for evaluating the safety of nuclear power plants. In the PRA, HRA (Human Reliability Analysis) is used to quantitatively evaluate the human error. The purpose of this paper is to present the accident analysis technique that incorporate the procedure of the PRA. The proposed method is three steps (1. Identification of an accident scenario, 2. Quantitative evaluation, 3. Risk assessment). The first step is carried out the identification of an accident scenario with top-down and bottom-up analysis method. The second step is a quantitative evaluation using the THERP. The third step is to extracting the accident factor using importance measures. Moreover, step 1 of the proposed method was applied to the titanic accident.