"TABLE 2-4 Daily Travel by Walking and Bicycling: 2001 ",,,,, ,Person Miles,,Person Trips,, ,Number (billions),Percent of miles,Number (millions),Percent of trips, Walking,"26,202",0.65,"35,326",8.60, Bicycling,"6,195",0.15,"3,522",0.86, Other modes,"3,977,148",99.19,"371,854",90.54, Total ,"4,009,545",100.0,"410,702",100.0, " NOTES: Total and other modes include only number of person miles and person trips where a mode was reported.",,,,, " SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and Federal Highway Administration, 2001 National Household Travel Survey, preliminary data (Washington, DC: 2003).",,,,, ,,,,, ,,,,,,,