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ASSESSING THE IMPACT OF AVIATION SYSTEM PERFORMANCE BY USING AIRLINE COST FUNCTIONS.
| 题名： | ASSESSING THE IMPACT OF AVIATION SYSTEM PERFORMANCE BY USING AIRLINE COST FUNCTIONS. |
| 作者： | Hansen-M; Gillen-D; Djafarian-Tehrani-R |
| 关键词： | Airlines-; Aviation-; Cancelled-flights; Cost-functions; Costs-; Delay-; Performance-; Performance-metrics; U.S.-National-Airspace-System |
| 摘要： | The manner in which changes in the performance of the U.S. National Airspace System (NAS) affect carrier costs is examined. The methodology includes estimation of airline cost functions that contain NAS performance metrics as arguments, using quarterly data for 10 U.S. domestic airlines. The primary interest is in the impact of delay on cost performance, and performance metrics that vary by airline and quarter are developed. The potentially large number of metrics are reduced by applying factor analysis to seven underlying variables, including average delay, delay variance, and the proportion of flights that are cancelled. The analysis reveals that variations in the seven variables can be adequately captured by three or fewer factors. The three factors used correspond to "delay," "variability," and "disruption," the last two of which are merged into a single "irregularity" factor in the two-factor model. When used as arguments in an airline cost function, the "disruption" factor is found to be a significant contributor to airline costs in the three-factor model, as is the "irregularity" factor in the two-factor model. No significant effect is found for the delay factor in the multifactor models. These results challenge the prevailing assumption that delay reduction is the most important benefit from investments in NAS capital and operations rules. The carrier cost savings that would result from improved NAS performance levels are estimated, and these are compared with previously published estimates. |
| 总页数： | Transportation Research Record. 2000. (1703) pp16-23 (2 Fig., 5 Tab., 9 Ref.) |
| 报告类型： | 科技报告 |
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