Arrival capacity at major airports is a primary constraint that must be overcome to reach the Next Generation Air Transportation System (NextGen) capacity goals. At the nation's busiest airports with closely spaced parallel runways for arrivals, capacity can be reduced significantly when weather at these airports falls below visual approach minima. When visual approaches can be used for arriving aircraft, pilots can apply their experience and judgment to position their aircraft to avoid wake turbulence generated by other aircraft they are following to the airport. This practice allows for the best arrival capacity to be achieved in good weather. When ceiling and visibility fall below that required for visual approaches, airports that would normally arrive on two parallel runways spaced less than 2500 feet (ft) apart, must discontinue parallel approaches, thus reducing the arrival rate to what can be achieved with a single runway. This reduction in capacity is due to the air traffic control (ATC) requirement that parallel runways spaced this closely must be treated as one runway for application of wake turbulence separation.
Increasing airport arrival capacity in NextGen with wake turbulence avoidance
2009-05-01
857054 byte
Conference paper
Electronic Resource
English
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