Vortex Advisory System Safety Analysis : Volume 1. Analytical Model

Details

• Creators:
  Hallock, J. N.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  Aircraft Landings Aircraft Wake Vortices Approach Control Instrument Flight Rules Landing Vortex Advisory System Vortex Transport And Decay Vortices Wakes Wind Factor (Air Navigation) Wind Measurement

  More +
• Publication/ Report Number:
  DOT-TSC-FAA-78-15-1 ; FAA-RD-78-68-1
• Resource Type:
  Tech Report
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration
• Abstract:
  The Vortex Advisory System (VAS) is based on wind criterion--when the wind near the runway end is outside of the criterion, all interarrival Instrument Flight Rules (IFR) aircraft separations can be set at 3 nautical miles. Five years of wind data have been obtained for 20 airports. By comparing the VAS wind criterion to the 5 years of wind data, the percentages of time that interarrival separations can be reduced at the 20 airports have been found. The percentages are given on an hourly and a monthly basis. Volume 2 (to be published at a later date) will examine the VAS effectiveness at Chicago O'Hare (ORD) with respect to the length of the intervals during which reduced separations might have been used.
• Format:
  PDF
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:bb5d5fc3965a892d2978fe484d990c28304a6a74eaa5a81a97a6976322907e29
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9327/dot_9327_DS1.pdf
• File Type:
  [PDF - 5.54 MB ]