In this paper, nine indicators are selected to evaluate the traffic accident risk. Nevertheless, the Report’s controversies endure in mistrust of PRA and its experts. The traffic accident risk includes three aspects, traffic accident probability, traffic accident severity, and traffic accident trend respectively. PRA’s fortunes revived when the 1979 Three Mile Island accident demonstrated PRA’s potential for improving the safety of nuclear power and other technical systems. Subsequent attacks on the Report’s methods and numerical estimates damaged the NRC’s credibility. On that basis, the risk looks pretty small. The Report, it was hoped, would prove nuclear power’s safety to a growing chorus of critics. The annual risk of being killed in a plane crash for the average American is about 1 in 11 million. By the 1970s, technical advances in PRA gave the methodology the potential to serve political ends, too. Nuclear experts had long sought to express risk in a “figure of merit” to verify the safety of weapons and, later, civilian reactors. The Report’s controversies have overshadowed the deeper technical origins of risk assessment. The “Rasmussen Report” inspired considerable political and scholarly disputes over the motives behind it and the value of its methods and numerical estimates of risk. Nuclear Regulatory Commission’s (NRC) Reactor Safety Study led by MIT professor Norman Rasmussen. If 20 percent of the population is a good risk, 50. The origins of PRA date to the 1975 publication of the U.S. 1 Risk in a PRA is defined as a feasible detrimental outcome of an activity or action. The probability of an accident in any particular year for these classes is 0.05, 0.15, and 0.30 respectively. In recent decades, probabilistic risk assessment (PRA) has become an essential tool in risk analysis and management in many industries and government agencies.
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