STATISTICAL ANALYSIS OF AIRCRAFT DELAY
AIRBORNE INSTRUMENTS LAB DEER PARK NY
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The purpose of this work is to analyze the delay to samples of various segments of the aircraft population air carrier, general aviation, military, and one airline and to determine the extent to which the amounts of delay are typical of the average delay of total traffic. Information obtained in previous AIL work for the FAA and others was used as the basis for this study. The data were selected from days during the years from 1961 to 1964 the delays to aircraft operating during the busiest hours of those days were analyzed. Aircraft that experienced no delays during these hours were included in the sample. Sample sizes for each case analyzed were as high as 361. There was a total of 33 cases in addition to three composites. The total number of samples was 5054. A computer performed the statistical analysis of the data from six major airports in the United States. For each of the total-traffic samples, 95-percent confidence intervals were computed and the average delays of each segment were tested to determine whether they were within the confidence intervals. Based on the six airports studied, it is generally believed that at the major air-carrier airports air-carrier delay is a good representative of total-traffic delay. However, the delays experienced by general aviation and a single airline United Airlines was selected were found to be significantly different from the total-traffic delays. It was also found that United Airlines delays for the cases studied were not typical of total air-carrier delays.
- Terminal Flight Facilities
- Commercial and General Aviation