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- Probabilistic_risk_assessment abstract "Probabilistic risk assessment (PRA) is a systematic and comprehensive methodology to evaluate risks associated with a complex engineered technological entity (such as an airliner or a nuclear power plant).Risk in a PRA is defined as a feasible detrimental outcome of an activity or action. In a PRA, risk is characterized by two quantities: the magnitude (severity) of the possible adverse consequence(s), and the likelihood (probability) of occurrence of each consequence. Consequences are expressed numerically (e.g., the number of people potentially hurt or killed) and their likelihoods of occurrence are expressed as probabilities or frequencies (i.e., the number of occurrences or the probability of occurrence per unit time). The total risk is the expected loss: the sum of the products of the consequences multiplied by their probabilities.The spectrum of risks across classes of events are also of concern, and are usually controlled in licensing processes – it would be of concern if rare but high consequence events were found to dominate the overall risk, particularly as these risk assessments are very sensitive to assumptions (how rare is a high consequence event?).Probabilistic Risk Assessment usually answers three basic questions:What can go wrong with the studied technological entity, or what are the initiators or initiating events (undesirable starting events) that lead to adverse consequence(s)?What and how severe are the potential detriments, or the adverse consequences that the technological entity may be eventually subjected to as a result of the occurrence of the initiator?How likely to occur are these undesirable consequences, or what are their probabilities or frequencies?Two common methods of answering this last question are Event Tree Analysis and Fault Tree Analysis - for explanations of these, see safety engineering.In addition to the above methods, PRA studies require special but often very important analysis tools like human reliability analysis (HRA) and common-cause-failure analysis (CCF). HRA deals with methods for modeling human error while CCF deals with methods for evaluating the effect of inter-system and intra-system dependencies which tend to cause simultaneous failures and thus significant increases in overall risk.In 2007 France was criticised for failing to use a PRA approach to evaluate the seismic risks of French nuclear power plants.".
- Probabilistic_risk_assessment wikiPageExternalLink probabilistic-risk-assessment.
- Probabilistic_risk_assessment wikiPageExternalLink saphire.inl.gov.
- Probabilistic_risk_assessment wikiPageExternalLink fault_tree_analysis.asp.
- Probabilistic_risk_assessment wikiPageExternalLink pra.pdf.
- Probabilistic_risk_assessment wikiPageExternalLink www.riskspectrum.com.
- Probabilistic_risk_assessment wikiPageID "2080354".
- Probabilistic_risk_assessment wikiPageLength "7527".
- Probabilistic_risk_assessment wikiPageOutDegree "28".
- Probabilistic_risk_assessment wikiPageRevisionID "638375128".
- Probabilistic_risk_assessment wikiPageWikiLink Airliner.
- Probabilistic_risk_assessment wikiPageWikiLink Benefit_shortfall.
- Probabilistic_risk_assessment wikiPageWikiLink Category:Probability_assessment.
- Probabilistic_risk_assessment wikiPageWikiLink Category:Risk_analysis.
- Probabilistic_risk_assessment wikiPageWikiLink Common_cause_and_special_cause_(statistics).
- Probabilistic_risk_assessment wikiPageWikiLink Comparison_of_risk_analysis_Microsoft_Excel_add-ins.
- Probabilistic_risk_assessment wikiPageWikiLink Cost_overrun.
- Probabilistic_risk_assessment wikiPageWikiLink Design_basis_accident.
- Probabilistic_risk_assessment wikiPageWikiLink Event_tree.
- Probabilistic_risk_assessment wikiPageWikiLink Expected_loss.
- Probabilistic_risk_assessment wikiPageWikiLink Extreme_risk.
- Probabilistic_risk_assessment wikiPageWikiLink Fault_tree_analysis.
- Probabilistic_risk_assessment wikiPageWikiLink France.
- Probabilistic_risk_assessment wikiPageWikiLink Fukushima_Daiichi_nuclear_disaster.
- Probabilistic_risk_assessment wikiPageWikiLink Human_error.
- Probabilistic_risk_assessment wikiPageWikiLink Human_reliability.
- Probabilistic_risk_assessment wikiPageWikiLink Kashiwazaki-Kariwa_Nuclear_Power_Plant.
- Probabilistic_risk_assessment wikiPageWikiLink Nuclear_power_in_France.
- Probabilistic_risk_assessment wikiPageWikiLink Nuclear_power_plant.
- Probabilistic_risk_assessment wikiPageWikiLink Reference_class_forecasting.
- Probabilistic_risk_assessment wikiPageWikiLink Risk.
- Probabilistic_risk_assessment wikiPageWikiLink Risk_Matrix.
- Probabilistic_risk_assessment wikiPageWikiLink Risk_assessment.
- Probabilistic_risk_assessment wikiPageWikiLink Risk_management_tools.
- Probabilistic_risk_assessment wikiPageWikiLink Safety_engineering.
- Probabilistic_risk_assessment wikiPageWikiLink Seismic_risk.
- Probabilistic_risk_assessment wikiPageWikiLink Transportation_safety_in_the_United_States.
- Probabilistic_risk_assessment wikiPageWikiLinkText "Probabilistic risk assessment".
- Probabilistic_risk_assessment wikiPageWikiLinkText "probabilistic approach".
- Probabilistic_risk_assessment wikiPageWikiLinkText "probabilistic risk analysis".
- Probabilistic_risk_assessment wikiPageWikiLinkText "probabilistic risk assessment".
- Probabilistic_risk_assessment wikiPageWikiLinkText "risk analyses".
- Probabilistic_risk_assessment wikiPageWikiLinkText "risk analysis".
- Probabilistic_risk_assessment wikiPageWikiLinkText "risk".
- Probabilistic_risk_assessment wikiPageUsesTemplate Template:Colbegin.
- Probabilistic_risk_assessment wikiPageUsesTemplate Template:Colend.
- Probabilistic_risk_assessment wikiPageUsesTemplate Template:Reflist.
- Probabilistic_risk_assessment wikiPageUsesTemplate Template:Undue.
- Probabilistic_risk_assessment subject Category:Probability_assessment.
- Probabilistic_risk_assessment subject Category:Risk_analysis.
- Probabilistic_risk_assessment hypernym Methodology.
- Probabilistic_risk_assessment type Software.
- Probabilistic_risk_assessment type Redirect.
- Probabilistic_risk_assessment comment "Probabilistic risk assessment (PRA) is a systematic and comprehensive methodology to evaluate risks associated with a complex engineered technological entity (such as an airliner or a nuclear power plant).Risk in a PRA is defined as a feasible detrimental outcome of an activity or action. In a PRA, risk is characterized by two quantities: the magnitude (severity) of the possible adverse consequence(s), and the likelihood (probability) of occurrence of each consequence.".
- Probabilistic_risk_assessment label "Probabilistic risk assessment".
- Probabilistic_risk_assessment sameAs Q1082833.
- Probabilistic_risk_assessment sameAs Kvalitativní_analýza_rizik.
- Probabilistic_risk_assessment sameAs Probabilistische_Sicherheitsanalyse.
- Probabilistic_risk_assessment sameAs Evaluación_probabilística_del_riesgo.
- Probabilistic_risk_assessment sameAs Valutazione_probabilistica_del_rischio.
- Probabilistic_risk_assessment sameAs m.06kt4s.
- Probabilistic_risk_assessment sameAs Q1082833.
- Probabilistic_risk_assessment wasDerivedFrom Probabilistic_risk_assessment?oldid=638375128.
- Probabilistic_risk_assessment isPrimaryTopicOf Probabilistic_risk_assessment.