Mine Equipment Operators' Perceptions concerning Alertness and Shift Rotation

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Abstract
In order to learn how mine equipment operators view numerous factors which may affect their alertness, two groups of operators (N = 57 and N = 73) were surveyed through the administration of questionnaires. It was of particular interest to use survey questions which would elucidate the hypothetical links between shift rotation, alertness, and accident causation. Based on the information and impressions obtained during this project, it seems apparent that alertness is greatly influenced by the necessity to work three shifts on a rotating schedule, by the physical and mental stimulation afforded by the task, and by the physical environment. It is also apparent that alertness can be maintained or at least restored by incorporating certain changes in the way tasks are performed and by modifying shift rotation schedules. Future Bureau of Mines research will utilize this information in designing improved shift rotation schedules and in deriving coping strategies which shiftworking mine equipment operators can use to maintain alertness on the job.

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