"TABLE 4-2  Long-Distance Trip-Miles by Mode: 2001
",,,,,
Mode,Percent,Person-miles (millions) ,SE (millions),,
Personal vehicle,55.9,"760,369","11,696",,
Air,41.0,"557,621","25,376",,
Bus,2.0,"27,094","3,048",,
Train,0.8,"10,546","1,998",,
Other,0.4,"5,120","1,124",,
Total,100.0,"1,360,750","28,293",,
"
KEY: SE = standard error.",,,,,
"
NOTES:  Excludes trips where mode was not reported.  Other includes watercraft (e.g., ship, ferry, and motorboat); taxi, limousine, and hotel/airport shuttle; bicycle and walking; and other not elsewhere classified.  Data may not add to total and percentages may not add to 100 because of independent rounding. ",,,,,
"
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 Data, CD-ROM, February 2004.",,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,