Experiment Description and Results for Arrival Operations Using Interval Management with Spacing to Parallel Dependent Runways (IMSPiDR)

The predicted increase in the number of commercial aircraft operations creates a need for improved operational efficiency. Two areas believed to offer increases in aircraft efficiency are optimized profile descents and dependent parallel runway operations. Using Flight deck Interval Management (FIM) software and procedures during these operations, flight crews can achieve by the runway threshold an interval assigned by air traffic control (ATC) behind the preceding aircraft that maximizes runway throughput while minimizing additional fuel consumption and pilot workload. This document describes an experiment where 24 pilots flew arrivals into the Dallas Fort-Worth terminal environment using one of three simulators at National Aeronautics and Space Administration's (NASA's) Langley Research Center. Results indicate that pilots delivered their aircraft to the runway threshold within +/- 3.5 seconds of their assigned time interval, and reported low workload levels. In general, pilots found the FIM concept, procedures, speeds, and interface acceptable. Analysis of the time error and FIM speed changes as a function of arrival stream position suggest the spacing algorithm generates stable behavior while in the presence of continuous (wind) or impulse (offset) error. Concerns reported included multiple speed changes within a short time period, and an airspeed increase followed shortly by an airspeed decrease.

  • Record URL:
  • Corporate Authors:

    National Aeronautics and Space Administration

    Langley Research Center
    Hampton, VA  United States  23681

    National Aeronautics and Space Administration

    Washington, DC  United States  20546
  • Authors:
    • Baxley, Brian T
    • Murdoch, Jennifer L
    • Swieringa, Kurt A
    • Barmore, Bryan E
    • Capron, William R
    • Hubbs, Clay E
    • Shay, Richard F
    • Abbott, Terence S
  • Publication Date: 2013-6


  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 168p

Subject/Index Terms

Filing Info

  • Accession Number: 01526356
  • Record Type: Publication
  • Report/Paper Numbers: NASA/TP-2013-217998, L-20193
  • Files: TRIS
  • Created Date: Apr 28 2014 12:47PM