Abstract
Long duration, low task load environments are typical for nuclear power plant control rooms, where operators, after hours of operating under a low task load situation, may have to shift to a high task load situation. The effects of time-on-task and boredom due to low task load will be an important consideration for the design of new nuclear power plant control rooms, which will rely more heavily on automation. This paper describes a research study of performance in a simulated nuclear control room environment, where 36 participants responded to an alarm during a 4 hour long experiment where the alarm onset time and the availability of distractions were varied. The results indicate that operators perform better in a sterile environment and that the duration of non-active time before the alarm influences operator performance.
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