Table 10: Percent of Long-Distance Trips by Mode for Urban and Rural Households,,,,,,,,,,, ,Urban,Standard error,Rural,Standard error,,,,,,, Mode,,,,,,,,,,, Personal vehicle,87.4,0.44,94.9,0.37,,,,,,, Air,9.2,0.36,2.7,0.25,,,,,,, Bus,2.3,0.16,1.8,0.22,,,,,,, Train,1.0,0.95,0.4,0.15,,,,,,, Other,0.2,0.06,0.2,0.11,,,,,,, Total,100.0,,100.0,,,,,,,, " NOTES: Only trips in which the transportation mode and houshold location could be identified are included.",,,,,,,,,,, " Column totals may not add to 100 percent due to rounding.",,,,,,,,,,, "SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Federal Highway Administration, National Household Travel Survey, long-distance file, 2001 (Washington, DC)",,,,,,,,,,,