Figure 3-5 - Change in Actual and Scheduled Travel Time: 1990-2002

Figure 3-5 - Change in Actual and Scheduled Travel Time: 1990-2002

Seasonally adjusted, yearly averages

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Figure 3-5 Change in Actual and Scheduled Travel Time: 1990-2002. If you are a user with disability and cannot view this image, use the table version. If you need further assistance, call 800-853-1351.

NOTE: These results, based on ongoing research, are preliminary. The Travel Time Variability Index is based on the standard deviation of actual travel time.

SOURCES: Data for scheduled and actual air travel times— U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), calculations based on Airline Service Quality Performance data, March 2004.
Flight operations—USDOT, BTS, Airline Market and Segment (T-100) data, March 2004.