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Acknowledgments US Department of Transportation - BTS

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Table 1-67: FAA-Cited Causes <strong>of</strong> Departure and En Route Delays (After pushing back from the gate)1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Operations delayed (thousands) 356 338 394 393 298 281 276 248 237 272 245 306 374 449 347 285 316 454 436 491 539 553 473 334 330Cause (percent)Weather 67 70 57 56 65 65 72 75 72 74 68 74 69 69 72 72 72 70 69 66 65 66 65 70 76Airport terminal volume 11 9 29 33 26 25 21 18 17 17 20 13 8 14 12 14 11 15 15 16 19 20 22 19 16Air Route Traffic Control Center volume 13 12 8 2 1 2 1 1 1 2 2 2 4 U U U U U U U U U U U UClosed runways / taxiways 4 5 3 3 3 3 3 2 3 3 3 3 5 6 5 4 7 6 10 14 12 9 6 4 3National Airspace System equipment 4 3 2 1 2 2 2 2 3 2 3 2 2 2 2 1 1 1 1 1 1 1 1 0 1Other 1 1 1 4 3 3 2 2 4 2 4 6 13 9 9 9 9 8 5 3 3 4 6 7 5KEY: FAA = Federal Aviation Administration; U = data are unavailable.NOTESAs <strong>of</strong> 2008, the FAA reports delays for aircraft that accumulate a delay <strong>of</strong> 15 minutes or more throughout the duration<strong>of</strong> the flight. Each holding segment is recorded as one delay . The Operations Network (OPSNET) Database delay datadating back to the year 2000 have been converted to be consistent with the new definitions.Beginning in 2008 the FAA started to combine Air Route Traffic Control Center volume and Airport Terminal volumeand retroactively applied this change through the year 2000.SOURCES1987-97: U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Aviation Administration, Aviation Capacity Enhancement Plan(Washington, DC: Annual Issues).1998-99: U.S. <strong>Department</strong> <strong>of</strong> <strong>Transportation</strong>, Federal Aviation Administration, Operations Network (OPSNET)Database , available at http://www.faa.gov/apa/Delays/atDelays.htm as <strong>of</strong> Aug. 8, 2002.2000-11: Ibid., Operations Network (OPSNET) Database , available at http://www.apo.data.faa.gov/ as <strong>of</strong> Feb. 27,2012.

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