TABLE 4-1  Daily Trip-Miles by Mode: 2001,,,,,,
Mode,Percent,Person-miles (millions),SE (millions),,,
Personal vehicle,88.7,"3,508,613","41,046",,,
Air,7.2,"283,307","40,573",,,
Transit,1.2,"45,838","2,096",,,
School bus,1.1,"45,189","2,092",,,
Bicycle/walk,0.8,"31,045",709,,,
Other,1.0,"41,378","4,611",,,
Total reported,100.0,"3,955,371","62,856",,,
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KEY: SE = standard error.",,,,,,
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NOTES:  Excludes trips where mode was not reported.  Other includes: charter/tour/intercity bus; taxi, limousine, hotel/airport shuttle bus; intercity train; and other not elsewhere classified.  Data are from the daily travel segment of the 2001 National Household Travel Survey. Long-distance travel data (i.e., trips of 50 miles or more collected during a 4-week travel period) are not included here. Data may not add to total and percentages may not add to 100 because of independent rounding. ",,,,,,
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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.",,,,,,