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Title: Challenges in leveraging existing human performance data for quantifying the IDHEAS HRA method

Our article documents an exploratory study for collecting and using human performance data to inform human error probability (HEP) estimates for a new human reliability analysis (HRA) method, the IntegrateD Human Event Analysis System (IDHEAS). The method was based on cognitive models and mechanisms underlying human behaviour and employs a framework of 14 crew failure modes (CFMs) to represent human failures typical for human performance in nuclear power plant (NPP) internal, at-power events [1]. A decision tree (DT) was constructed for each CFM to assess the probability of the CFM occurring in different contexts. Data needs for IDHEAS quantification are discussed. Then, the data collection framework and process is described and how the collected data were used to inform HEP estimation is illustrated with two examples. Next, five major technical challenges are identified for leveraging human performance data for IDHEAS quantification. Furthermore, these challenges reflect the data needs specific to IDHEAS. More importantly, they also represent the general issues with current human performance data and can provide insight for a path forward to support HRA data collection, use, and exchange for HRA method development, implementation, and validation.
 [1] ;  [1] ;  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
SAND-20153925J; SAND-2015-0552J
Journal ID: ISSN 0951-8320; PII: S0951832015002239; TRN: US1600450
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Reliability Engineering and System Safety
Additional Journal Information:
Journal Volume: 144; Journal Issue: C; Journal ID: ISSN 0951-8320
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
22 GENERAL STUDIES OF NUCLEAR REACTORS; 99 GENERAL AND MISCELLANEOUS; human reliability analysis (HRA); HRA data; the IntegrateD human event analysis system (IDHEAS); crew failure mode (CFM); probabilistic risk assessment (PRA); error of commission; nuclear power plant (NPP); decision tree (DT); 42 ENGINEERING; Human reliability analysis (HRA); The IntegrateD Human Event Analysis System (IDHEAS); Crew failure mode (CFM); Probabilistic risk assessment (PRA); Nuclear power plant (NPP); Decision tree (DT)