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

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.

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Household income ($) Personal vehicle Air Bus Other All modes
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