A simulation study of the effects of communication delay on air traffic control
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1990-09-01
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Edition:Final Report; Nov. 1989 - Aug. 1990
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Abstract:This study was conducted to examine the impacts of voice communications delays ; characteristic of Voice Switching and Control System (VSCS) and satellite ; communications systems on air traffic system performance, controller stress ; and workload, and communications disruptions. To accomplish this a simulation ; was developed and performed at the Federal Aviation Administration (FAA) ; Technical Center. The simulation used scenarios constructed from records of ; live air traffic at five adjacent Atlanta Air Route Traffic Control Center ; (ARTCC) sectors. Nine full performance level air traffic control specialists ; from the Atlanta ARTCC sectors simulated participated as subjects. Four delay ; levels were employed corresponding to: current equipment with and without ; satellite link, and VSCS with and without satellite. Three levels of ; communications workload were used based on 70 percent, 90 percent, and 110 ; percent of reference values for the actual sectors. VSCS delays were not ; found to have any statistically significant impact on any measure. Satellite ; delays were found to be associated with a statistically significant increase ; in one kind of communication disruption (step-ons) at the highest level of ; communications workload used in the study.
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Main Document Checksum:urn:sha-512:07b616922b0992c6003cb11167da91c63a13bb4b53f72ddde32d06b086ee2ddefb50f9492011e19e06ab936911b6fab32c5b1ea270f1fa402d6eecfc562499d8