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Controller evaluations of the descent advisor automation aidAn automation aid to assist air traffic controllers in efficiently spacing traffic and meeting arrival times at a fix has been developed at NASA Ames Research Center. The automation aid, referred to as the descent advisor (DA), is based on accurate models of aircraft performance and weather conditions. The DA generates suggested clearances, including both top-of-descent point and speed profile data, for one or more aircraft in order to achieve specific time or distance separation objectives. The DA algorithm is interfaced with a mouse-based, menu-driven controller display that allows the air traffic controller to interactively use its accurate predictive capability to resolve conflicts and issue advisories to arrival aircraft. This paper focuses on operational issues concerning the utilization of the DA, specifically, how the DA can be used for prediction, intrail spacing, and metering. In order to evaluate the DA, a real time simulation was conducted using both current and retired controller subjects. Controllers operated in teams of two, as they do in the present environment; issues of training and team interaction will be discussed. Evaluations by controllers indicated considerable enthusiasm for the DA aid, and provided specific recommendations for using the tool effectively.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Tobias, Leonard
(NASA Ames Research Center Moffett Field, CA, United States)
Volckers, Uwe
(Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt, Brunswick, Germany F.R. , United States)
Erzberger, Heinz
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1989
Subject Category
Air Transportation And Safety
Report/Patent Number
NAS 1.15:102197
Meeting Information
Meeting: AIAA American Control Conference
Location: Pittsburgh, PA
Country: United States
Start Date: June 1, 1989
Accession Number
Funding Number(s)
PROJECT: RTOP 505-66-21
Distribution Limits
Work of the US Gov. Public Use Permitted.
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