Abstract
A tactical separation assurance prototype system is evaluated for its fitness to support the Standard Terminal Automation Replacement System (STARS) in a complex terminal airspace environment that includes a mix of visual- and instrument-approach aircraft, Mode C intruders, and limited trajectory-intent data. Fast-time simulation experiments using air traffic data from human-in-the-loop simulations and live Terminal Radar Control (TRACON) operations featuring a mix of visual and instrument approaches and Mode C intruders are performed to assess the performance and benefits of the system in a near-term national airspace system (NAS). It is found that nuisance alerts attributable to aircraft on visual approach are eliminated with a high-severity alerting option. With a normal lowseverity alerting option, Mode C intruder alerts are reduced more than 50% as compared to the Conflict Alert system, a legacy function in STARS. The trajectory intent information that is most effective in reducing false alerts is identified and found to be available in STARS or easily adapted from existing NAS automation.
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