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Pages 18-23

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From page 18...
... 18 The Risks to Airports According to the ACRP project request for proposals, one of the objectives of the project was to "identify risks associated with reduced cognitive ability and SA caused by fatigue or overload." Identifying these risks was determined to be unachievable given the lack of data specific to fatigue or overload. Even for those investigation narratives with enough information for HFACS coding per the taxonomy, the analysis required the research team to default to one unsafe act for the largest percentage of the events -- that act being decision error.
From page 19...
... The Risks to Airports 19   3.1 Human Factors Risks Leading to V/PDs The research team determined that the risk posed by the human factors behind V/PDs is a function of the frequency of the human factor since the severity of the events is viewed as a constant. Of the 847 events analyzed, only eight resulted in any damage to airport facilities; seven of those eight (one not able to be assessed)
From page 20...
... 20 Airside Operations Safety: Understanding the Effects of Human Factors The next step was to determine the level of airport effort that should be focused on mitigating violations. As a start, the events coded as violations were analyzed for second-level contributing factors.
From page 21...
... The Risks to Airports 21   The results of this analysis are depicted in Figure 3-5. The investigation narratives showed that in 62 of the 100 events assessed, the person or persons violating the rules were trespassing on airport property (two were being chased by police vehicles)
From page 22...
... 22 Airside Operations Safety: Understanding the Effects of Human Factors be the unsafe act that led to the V/PD. In accordance with the risk assessment methodology discussed, the underlying human factors leading to these decision errors present the highest levels of human performance risk to airport management working to minimize V/PD occurrences.
From page 23...
... The Risks to Airports 23   number of V/PDs are the result of a decision error by someone involved in the event provides some level of insight, it does little to guide them toward the development and implementation of mitigations to prevent future occurrences. The research steps to address this shortfall are illustrated in Figure 3-8.

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