BTS | Table 5: Results of Intervention Analyses for the Five Series

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BTS Home > Publications > Journal of Transportation and Statistics > Volume 7 Number 1 > Paper 5

Table 5: Results of Intervention Analyses for the Five Series

Excel | CSV

Time series	# obs. after 8/2001	AO (Sept.)	TC (Oct.)	LS (Nov.)	Rs-squared
Late arrivals	6	14.28	-3.11	-5.52	0.404
	6	(0.0000)	(0.3334)	(0.0431)
	14	13.91	-4.64	-4.94	0.402
	14	(0.0000)	(0.1264)	(0.0648)
Cancellations	6	18.12	-0.06	-1.56	0.947
	6	(0.0000)	(0.8978)	(0.0001)
	14	18.00	0.72	-1.80	0.947
	14	(0.0000)	(0.2450)	(0.0009)
Enplanements	4	-17.42	-11.99	-2.25	0.813
	4	(0.0000)	(0.0000)	(0.0082)
	10	-17.31	-11.18	-2.75	0.798
	10	(0.0000)	(0.0000)	(0.0017)
Air revenue passenger-miles	4	-13.94	-10.02	-1.60	0.800
	4	(0.0000)	(0.0000)	(0.0245)
	10	-13.82	-9.33	-2.08	0.787
	10	(0.0000)	(0.0000)	(0.0036)
Rail revenue passenger-miles	4	-9.97	-0.18	3.38	0.564
	4	(0.0002)	(0.9460)	(0.1335)
	11	-9.71	1.71	1.46	0.554
	11	(0.0002)	(0.4480)	(0.3801)

Note: The first two rows for each series provide the estimated coefficients and their p-values based on the first analysis; the next two rows provide the same information for the second analysis.