The phenomenon of wake vortices has introduced a major operational constraint on airport operations, resulting in a reduction of runway capacities. Increased knowledge about the behavior of wake vortices has resulted in the development of a model of vortex behavior as a function of meteorological conditions. Based on this vortex behavior model, a Vortex Advisory System (VAS) has been designed and built. The VAS measures the primary meteorological parameter (wind) which affects vortex behavior and indicates to controllers via displays when conditions are such that more efficient runway use is possible. A detailed description of the VAS and guidelines for an operational system are given.
This report describes the collection and analysis of data related to the behavior of the wake vortices of departing aircraft. The test site was locate...
The Vortex Advisory System (VAS) is based on wind criterion--when the wind near the runway end is outside of the criterion, all interarrival Instrumen...
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United States Department of Transportation
[PDF-4.73 MB]
