ABSTRACT
In an effort to investigate how human-system interface can impact human performance in nuclear power plant environment, 204 licensed operators from 10 commercially operating nuclear power plants in the US, 18 units in total, participated in a survey to examine 30 human errors due to human-system interfaces in nuclear power plant control rooms. The survey results were analyzed with factor analysis to derive a five factor structure: Invisibility of System Status, Incorrect System Interface Design, Insufficient Support for System Diagnosis and Decision Making, lvfisoperations, and A1anual Actions. Corrective actions are suggested in the context of a decision-action model to prevent such errors in control rooms and/or mitigate their consequences.
