In contrast to today's system, ATC is evolving toward a "strategic" type of control in which long-term planning and time separation are used to solve the traffic problem. The Department of Transportation (DOT) advanced air traffic management system (AATMS) study defined an ATC system concept to handle air traffic projected for 1990. The concept includes a strategic control system in which ATC determines nonconflicting four-dimensional flight paths for all aircraft under positive control and the pilot executes the clearance by accurately flying the assigned four-dimensional path. The four-dimensional path consists of a series of waypoints defining the flight route, with altitudes and times assigned to the waypoints such that the vertical profile and speeds are defined along its entire length. Controlling aircraft speed along track, rather than path-stretching, adjusts spacing.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  United States  10019
  • Authors:
    • Erwin Jr, R L
  • Publication Date: 1978-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00189715
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Apr 12 1979 12:00AM