Revenue enplanements, the number of passengers boarding aircraft, indicate the demand for gate and luggage services. Enplanements differ from the number of trips because passengers may board more than one flight between their origination point and ultimate destination.
|Domestic Passenger Aviation||Sep-00||Sep-01|
|Revenue aircraft enplanements (millions)||47.74||31.33|
|Revenue aircraft enplanements percent change from same month previous year||4.06||-34.37|
NOTES: The current value is compared to the value from the same period in the previous year to account for seasonality.
The data have been adjusted to have a standard 30-day month by multiplying the data for each month by the ratio: 30/(actual days in month).
The data do not include international flights by U.S. domestic carriers or domestic flights by foreign carriers.
The dramatic changes in the September 2001 data reflect the impact of the terrorist attacks on September 11, 2001, on aviation, including several days in which commercial air operations were suspended.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Air Carrier Traffic Statistics Monthly, September 2001.