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原文传递 An Assessment of the CF Submarine Watch Schedule Variants for Impact on Modeled Crew Performance

题名：	An Assessment of the CF Submarine Watch Schedule Variants for Impact on Modeled Crew Performance
作者：	Paul, Michel A;Gray, Gary W;Nesthus, Thomas E;Miller, James C;
关键词：	COGNITION, ZCOGNITIONZ, PERFORMANCE HUMAN , ZPERFORMANCE HUMANZ, OPERATIONAL EFFECTIVENESS, ZOPERATIONAL EFFECTIVENESSZ, WATCH DUTY , ZWATCH DUTYZ, SCHEDULING, ZSCHEDULINGZ, CREWS, ZCREWSZ, SHIPBOARD, ZSHIPBOARDZ, PATTERNS, ZPATTERNSZ, ENGINES, ZENGINESZ,
摘要：	In support of the Board of Inquiry (BOI) investigating the October 2005 fire on board HMCS Chicoutirni, DRDC Toronto was asked to model crew cognitive effectiveness at the time of the fire and at the time of casualty evacuation approximately 28 hrs after the fire. The results of this modeling effort (based on sleep behavior estimates) suggested that our submariners were operating at significantly reduced levels of cognitive effectiveness. Therefore DRDC Toronto was tasked to conduct an at-sea trial, this time using real actigraphically-derived sleep data in order to more accurately model the impact of the watch schedule on crew cognitive effectiveness. Twenty-one submariners participated as subjects in this at-sea trial. Three of these subjects were non-watch-standers: Commanding Officer (CO), Coxswain (COXSN) and Chief Engine Room Artificer (CERA), 6 subjects were from the 1-in-2 back-watch, 6 subjects were from the 1-in-2 front-watch, and 6 subjects were from the 1-in-3 engineers' watch. The trial took place on a Canadian submarine during a 13-day transatlantic return to Halifax. All subjects wore wrist activity monitors (actigraphs) in order to measure their daily sleep patterns quantitatively. The subjects also maintained a daily activity and sleep log, and performed daily iterations of the psychomotor vigilance task (PVT). The modeled cognitive effectiveness was worse than the previous modeling efforts for Chicoutimi which used sleep behavior estimates. The activity and sleep log data indicated increasing difficulty arising from sleep and a decrease in subjective levels of `restedness' over days at sea. Alertness also decreased over days at sea. Each of the 1-in-2 front and back-watches were less `happy' than their 1-in-3 engineering watch counterparts.
总页数：	80
报告类型：	科技报告