NDLI: Airborne Precision Spacing: A Trajectory-Based Aprroach to Improve Terminal Area Operations

Content Provider	IEEE Xplore Digital Library
Author	Barmore, B.
Copyright Year	2006
Description	Author affiliation: NASA Langley Res. Center, Hampton, VA (Barmore, B.)
Abstract	Airborne precision spacing has been developed by the National Aeronautics and Space Administration (NASA) over the past seven years as an attempt to benefit from the capabilities of the flight deck to precisely space their aircraft relative to another aircraft. This development has leveraged decades of work on improving terminal area operations, especially the arrival phase. With APS operations, the air traffic controller instructs the participating aircraft to achieve an assigned inter-arrival spacing interval at the runway threshold, relative to another aircraft. The flight crew then uses airborne automation to manage the aircraft's speed to achieve the goal. The spacing tool is designed to keep the speed within acceptable operational limits, promote system-wide stability, and meet the assigned goal. This reallocation of tasks with the controller issuing strategic goals and the flight crew managing the tactical achievement of those goals has been shown to be feasible through simulation and flight test. A precision of plusmn2-3 seconds is generally achievable. Simulations of long strings of arriving traffic show no signs of instabilities or compression waves. Subject pilots have rated the workload to be similar to current-day operations and eye-tracking data substantiate this result. This paper will present a high-level review of research results over the past seven years from a variety of tests and experiments. The results will focus on the precision and accuracy achievable, flow stability and some major sources of uncertainty. The paper also includes a summary of the flight crew's procedures and interface and a brief concept overview
Starting Page	1
Ending Page	12
File Size	381512
Page Count	12
File Format	PDF
ISBN	1424403774
DOI	10.1109/DASC.2006.313683
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Air traffic control Aircraft Aerospace control Stability Testing NASA Automation Automatic control Aerospace simulation Traffic control
Content Type	Text
Resource Type	Article

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