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首页> 美国政府科技报告 >Airline Delay Trends, 1974-1975. A Study of Block Time Delays, Ground and Airborne, for Scheduled Air Carriers.
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Airline Delay Trends, 1974-1975. A Study of Block Time Delays, Ground and Airborne, for Scheduled Air Carriers.

机译：航线延误趋势，1974-1975。定期航空承运人的拦截时间延迟，地面和空中研究。

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Estimates of block, airborne and ground delays for route segments flown by United States domestic scheduled airlines operating out of twenty large airports are presented in this document. The data were determined from the CAB ER-586 Service Segment data base, which provides monthly operational times, both ground and airborne, for all route segments receiving scheduled air carrier service. The data in this report are limited to the three-hundred and thirty route segments connecting the twenty airports included in the study. Average monthly estimates of the ground and airborne components of block delays, defined as delays encountered from 'ramp to ramp' on a route segment, are presented for the two-year period from 1974-1975. Average monthly estimates of delays for the airborne portion of the segment ('wheel off' to 'wheels on') are categorized according to (1) route segment, (2) airline, (3) aircraft type and (4) local scheduled arrival or departure time. Average monthly estimates of delays for the ground portion of the route segments are categorized according to departure and arrival ground times at the twenty airport locations included in the study. These estimates of ground delays are further categorized into 'busy' time intervals (07:00 - 22:59) and 'dull' time intervals (23:00 - 06:59). (Author)

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