Table 1-61: FAA-Cited Causes of Departure and En route Delays (After pushing back from the gate)

Table 1-61: FAA-Cited Causes of Departure and En route Delays (After pushing back from the gate)

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  1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 a 2000
Operations delayed (thousands) 356 338 394 393 298 281 276 248 237 272 245 306 374 450
Cause (percent)                            
Weather 67 70 57 56 65 65 72 75 72 74 68 74 69 69
Airport terminal volume 11 9 29 35 27 27 22 19 18 18 22 15 12 14
Air Route Traffic Control Center volume 13 12 8 2 b b b b b b b b b b
Closed runways / taxiways 4 5 3 3 3 3 3 2 3 3 3 3 5 6
National Airspace System equipment 4 3 2 1 2 2 2 2 3 2 3 2 2 2
Other 1 1 1 4 3 3 2 2 4 2 4 6 13 9

KEY: ARTCC = Air Route Traffic Control Center; FAA = Federal Aviation Administration.

a Data are preliminary and subject to change.

b Delays due to ARTCC volume are included in delays due to terminal volume from 1991.

NOTE

Numbers may not add to totals due to roundings.

SOURCES

1987-97: U.S. Department of Transportation, Federal Aviation Administration, Aviation Capacity Enhancement Plan (Washington, DC: Annual issues).

1998-2000: U.S. Department of Transportation, Federal Aviation Administration, Internet site www.faa.gov/apa/Delays/atDelays.htm as of Aug. 8, 2002.