事故防止における安全の事前論とex ante-safety controlの考え方

抄録

The simple expectation for safety would be "to prevent accidents". Accident is probabilistic concept. And there is no definitive way to prevent it. Therefore, instead of proactively avoiding by control, we have to take a method of stopping (function itself of original control) before accident (event), at least not to cause critical damage. The title theory (ex ante-safety control) is a system that ensures safety by stopping "before the accident". In this thesis, rather than positively preventing accidents, safety is to stop against accidents that can not be avoidable, at least to avoid causing critical damage. In this thesis, in advance safety theory fundamentally different from safety based on the probability theory so far is under consideration.