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Since human errors are being recognized as one of the primary issues in railway safety, there is a definite need for human error analysis techniques that can identify the types of errors and their causes and derive effective countermeasures to help reduce their future probability. But, for some reasons, there are not yet systematic procedures or techniques for analyzing human errors in the Korean railway industry. This paper introduces several techniques that have been developed and utilized for analyzing human errors in Korean and overseas nuclear power, aviation, railway, offshore oil industry, etc., and summarizes the strengths and weaknesses of each technique. Based on the investigation of the techniques, the paper also discusses the implications for the development of a human error analysis system for the Korean railway industry.