Abstract
The team’s cognitive behavior plays a crucial role in dealing with accidents at nuclear power plants. Herein, the main behaviors of reactor operators and coordinators in performing accident management were analyzed in executing a state-oriented procedure. According to these cognitive behavioral characteristics, we established cognitive behavioral models of accident management procedures. After that, a cognitive behavioral model was established for the team in the main control room of the nuclear power plant based on the two models, which is expected to provide support to the optimization of a corresponding Human Reliability Analysis model.
Highlights
By analyzing team members’ behaviors in the main control room, the present work modeled the complex team accident management process using basic cognitive units to lay modeled the complex team accident management process using basic cognitive units to the groundwork for a new Human Reliability Analysis (HRA) methodology based on this cognitive process
Lay the groundwork for a new HRA methodology based on this cognitive process
Staff behaviors in the main control room based on a state-oriented procedures (SOPs) are
Summary
In the field of nuclear power plant safety, data have been published that indicate that. For human reliability studies, as well as the development of prediction methods for human error probability statistics analysis based on expert judgments. At this stage, the basis of the HRA model was human behavioral theory, i.e., looking into human output behavior without investigating inner cognitive behavioral processes. The models are rough and rely excessively on expert judgments, so that the results of the analyses cannot provide practical suggestions on the improvement of power plant safety [23–34]. The former two generations of HRA methodology are limited in terms of individual behavior reliability analysis. A team cognitive behavioral model based on a SOP is established that provides support for further optimization of HRA based on an analysis of the behavior of staff who adopt SOPs in the main control room of nuclear power plants
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