BTS | Table 1-58: FAA-Cited Causes of Departure and Enroute Delays

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Table 1-58: FAA-Cited Causes of Departure and Enroute Delays

(After pushing back from the gate)

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	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	^a2000
Operations delayed (thousands)	356	338	394	393	298	281	276	248	237	272	245	306	374	450
Cause (%)
Weather	67	70	57	56	65	65	72	75	72	^R74	68	74	^R69	69
Airport terminal volume	11	9	29	35	27	27	22	19	18	18	22	15	^R12	14
ARTCC 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	^R5	6
NAS 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	^R13	9

KEY: ARTCC = Air Route Traffic Control Center; NAS = National Airspace System; R = Revised.

^a Data is preliminary and subject to change.

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

NOTE: Percentages may not add to 100 due to rounding.

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 Oct. 8, 2001.