BTS | Table B4 - Distribution of Pre- and Post-9/11 Long-Distance Trips by Income, for Each Mode

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BTS Home > Publications > Estimated Impacts of September 11th on US Travel

Table B4
Distribution of Pre- and Post-9/11 Long-Distance Trips by Income, for Each Mode

Percentage trips (standard error)

NOTE: Cells with a small sample size (< 30) or that have a covariance or c.v. (> 0.3) are shaded dark grey to indicate that the weighted estimates are not reliable. Cells with bold type indicate significant differences (p<0.05) between pre-9/11 and post-9/11 estimates.

Excel | CSV

Household income ($)	Personal vehicle		Air		Bus		Other		All modes
Household income ($)	Pre	Post	Pre	Post	Pre	Post	Pre	Post	Pre	Post
0-24,999	13.1	13.6	5.9	4.4	32.1	18.5	11.0	19.3	12.9	13.1
	(0.79)	(0.60)	(0.87)	(0.63)	(6.92)	(3.00)	(5.18)	(11.24)	(0.76)	(0.55)
25-49,999	32.7	30.5	14.3	15.8	30.3	28.6	35.6	15.5	31.2	29.3
	(1.00)	(0.87)	(1.27)	(1.29)	(4.51)	(3.06)	(7.59)	(4.61)	(0.91)	(0.82)
50,000+	54.3	55.9	79.7	79.8	37.6	52.9	53.4	65.2	55.9	57.6
	(1.04)	(1.00)	(1.55)	(1.39)	(4.88)	(3.85)	(8.57)	(10.49)	(0.97)	(0.92)
All trips	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Table B4 Distribution of Pre- and Post-9/11 Long-Distance Trips by Income, for Each Mode

Table B4
Distribution of Pre- and Post-9/11 Long-Distance Trips by Income, for Each Mode