… The external error mode is the minimum that needs to be identified, since this is what will ‘appear’
in the risk assessment (eg in the PSA fault and/or event trees). Performance Shaping …

… It will be apparent that some of the failure probabilities in the event tree could easily arise
from human error. For example, although the wear-out of the brake linings is a property of the …

… Results indicate non-uniform implementation of event registration and classification, as well
as incomplete or zero implementation of risk assessment and events analysis. Based on the …

… operator errors of commission (EOCs) in nuclear power plant probabilistic risk assessments
(… , while the same action is not an error for a steam generator tube rupture (SGTR) event. The …

… does provide a bridge from observation of failure to diagnosis of error causality; however, …
to error prediction and risk analyses in safety-critical systems depend on creating either event-…

… • Normal operation-Actions and errors may occur in normal operation which lead to events
directly. • Abnormal operation-Conditions which are off-normal must be detected by operators …

… 1 with hardware failure events C i and consecutive human error events H i (i=1,2,3). The
system fails if two or more trains fail. The Boolean expression for the system failed state Z s is …

… The risk assessment process should not ignore the role of humans in accidental events and
… the importance of considering human error in quantitative risk assessment. The described …

… The identification of possible hazardous events is a critical part of risk assessment, since
events which are not identified cannot be assessed or quantified. Standard methods for …

… analysis) or as a function of time (event history analysis), then to derive individual … of error.
Unfortunately, the VRAG and Static-99 were not constructed using logistic regression or event …