The Cognitive Environment Simulation as a tool for modeling human performance and reliability

Technical Report · Fri Jun 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/7069222· OSTI ID:7069222

Woods, D D ^[1]; Pople, Jr, H E ^[2]; Roth, E M ^[3]

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1. Ohio State Univ., Columbus, OH (USA). Cognitive Systems Engineering Lab.
2. Seer Systems (USA)
3. Westinghouse Electric Corp., Pittsburgh, PA (USA). Science and Technology Center

The US Nuclear Regulatory Commission is sponsoring a program to develop improved methods to model the cognitive behavior of nuclear power plant (NPP) personnel. A tool called Cognitive Environment Simulation (CES) was developed for simulating how people form intentions to act in NPP emergencies. CES provides an analytic tool for exploring plausible human responses in emergency situations. In addition a methodology called Cognitive Reliability Assessment Technique (CREATE) was developed that describes how CES can be used to provide input to human reliability analyses (HRA) in probabilistic risk assessment (PRA) studies. This report describes the results of three activities that were performed to evaluate CES/CREATE: (1) A technical review was conducted by a panel of experts in cognitive modeling, PRA and HRA; (2) CES was exercised on steam generator tube rupture incidents for which data on operator performance exist; (3) a workshop with HRA practitioners was held to analyze a worked example'' of the CREATE methodology. The results of all three evaluations indicate that CES/CREATE is a promising approach for modeling intention formation. Volume 1 provides a summary of the results. This document, Volume 2, provides details on the three evaluations, including the CES computer outputs for the tube rupture events. 18 refs., 9 figs., 5 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research; Westinghouse Electric Corp., Pittsburgh, PA (USA). Science and Technology Center
• Sponsoring Organization: NRC
• OSTI ID: 7069222
• Report Number(s): NUREG/CR-5213-Vol.2; ON: TI90013882
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ACCIDENTS
BOILERS
C CODES
COMPUTER CODES
FAILURES
HUMAN FACTORS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PERSONNEL
POWER PLANTS
REACTOR ACCIDENTS
REACTOR OPERATORS
REACTOR SAFETY
RELIABILITY
RISK ASSESSMENT
RUPTURES
SAFETY
STEAM GENERATORS
THERMAL POWER PLANTS
TUBES
VAPOR GENERATORS