TABLE 4-14a Long-Distance Trips by Age and Mode: 2001,,,,,,, "Percent ",,,,,,, ,Personal vehicle,,Air,,"Bus, train, and other",,Total (%) Age group,Percent,SE ,Percent,SE,Percent,SE, 0–4,94.0,0.8,5.4,0.8,0.6,0.2,100.0 5–17,87.9,0.7,5.1,0.5,7.0,0.6,100.0 18–29,90.4,0.8,6.7,0.6,2.8,0.6,100.0 18–23,91.9,0.9,5.0,0.7,3.0,0.5,100.0 24–29,89.4,1.3,7.8,0.8,2.7,1.0,100.0 30–44,88.3,0.6,9.3,0.6,2.3,0.3,100.0 45–54,88.9,1.1,8.2,0.5,2.0,0.3,100.0 55–64,90.4,0.6,7.1,0.5,2.5,0.4,100.0 65–74,90.3,1.0,4.8,0.6,4.8,0.8,100.0 75 and older,87.2,1.3,6.5,0.9,6.3,0.9,100.0 Total,89.3,0.4,7.4,0.3,3.1,0.2,100.0 KEY: SE = standard error.,,,,,,, "SOURCE: U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics and USDOT, Federal Highway Administration, 2001 National Household Travel Survey, CD-ROM, February 2005.",,,,,,, ,,,,,,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,, ,,