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Stochastic Model for SPAD Human Reliability  

Lee, Kang-Won (서울산업대학교 산업정보시스템공학과)
Chung, In-Soo (코레일)
Publication Information
Journal of the Korean Society for Railway / v.11, no.1, 2008 , pp. 75-80 More about this Journal
Abstract
Human factors still play a significant part in many railway accidents. It is well blown that SPAD (Signal Passed at Danger) remains as the single most cause of railway accidents. In this study a stochastic model is developed to quantify SPAD human reliability. This model provides closed-form mathematical expressions into which multiple factors affecting the reliability of man-machine systems can be incorporated. Two basic elements are combined to form the framework for modeling: random signal occurrence and transient human performance characteristics.
Keywords
SPAD; Human Reliability; Stochastic Process;
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