Abstract
Operator’s situation awareness (SA) issues are more prominent in digital nuclear power plants (NPPs). In order to identify the SA levels of operators and levels of team shared situation awareness (SSA), a SA measure method was developed based on Situation Awareness Global Assessment Technique (SAGAT). Furthermore, it was used to measure the SA levels of operators by simulation experiments and a method was established to determine the team SSA level. The experimental results showed that the individual SA level was related to the SSA level. The higher the individual SA level is, the higher the SSA level is. Furthermore, for different experimental scenarios, the SA level of operators and team SSA level is different, which means that the more obvious the symptoms of the risky scenarios are, the relatively higher the SA and SSA level are.
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