A new model to improve aggregregate air traffic demand predictions
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2007-08-20
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Abstract:Federal Aviation Administration (FAA) air traffic flow management (TFM) ; decision-making is based primarily on a comparison of predictions of traffic demand and ; available capacity at various National Airspace System (NAS) elements such as airports, ; fixes and en-route sectors. The FAA uses the Enhanced Traffic Management System ; (ETMS) to predict traffic demand and available capacity, identify congestion and alert NAS ; elements when the predicted demand exceeds capacity. Although predicted demands and ; capacities are uncertain, ETMS treats them deterministically and does not take into account ; the errors in subsequent prediction updates. This paper proposes a regression model for ; improving aggregate traffic demand predictions in ETMS. This approach acknowledges the ; uncertainty in these predictions, and uses ETMS demand count data in a novel way to make ; improved predictions in terms of both accuracy and stability. The proposed linear regression ; model includes predicted demand counts for a time interval of interest along with the ; demand predictions for two immediately adjacent intervals: the preceding and the following ; ones. The model was calibrated and validated using data from 9 airports and 13 en-route ; sectors. Numerical results are presented that illustrate the potential benefits of using the ; proposed model.
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Main Document Checksum:urn:sha-512:987d58b49bafa814a0c4c0611a1c91119abbdd5acfe9e33cedc270ff3b50f114a5224e825f9cb65cd3ec3dd9b43c0c1e0b2b7da408329bb255eee16dfbfdb6e9