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 II (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. (Author)
Vortex Advisory System. Volume I. Effectiveness for Selected Airports
1980
122 pages
Report
No indication
English
Air Transportation , Transportation Safety , Dynamic Meteorology , Vortices , Warning systems , Airports , Runways , Aircraft landings , Approach , Separation , Range(Distance) , Determination , Wind , Crosswinds , Measurement , Data processing , Indicator lights , Operational effectiveness , Statistical analysis , Aircraft , Wake , VAS(Vortex Advisory System) , Aircraft wake vortex
NTIS | 1977
|NTIS | 1977
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