TABLE 1-33M:  Roadway Vehicle-Kilometers Traveled (VKT) and VKT per Lane-Kilometer by Functional Class,,,,,,,,,,,,,,,,,,
,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,,,
"Urban VKT, total (millions)","1,376,416","1,680,313","2,052,693","2,073,635","2,193,623","2,268,647","2,332,337","2,397,173","2,452,457","2,499,240","2,567,901","2,619,397","(R) 2,677,583","2,697,870","2,780,296",,,
Interstate,"259,494","347,921","448,848","459,186","488,058","510,804","532,012","549,636","565,812","581,670","602,896","616,796","(R) 633,221","643,561","657,607",,,
Other arterialsa,"779,227","930,635","1,125,306","1,138,640","1,199,956","1,245,597","1,284,094","1,311,889","1,343,196","1,362,514","1,388,857","1,413,250","(R) 1,449,040","1,470,499","1,508,530",,,
Collector,"133,645","144,162","171,068","172,652","186,789","189,721","193,263","204,272","208,104","209,450","212,281","211,794","(R) 217,860","221,964","228,324",,,
Local,"204,050","257,595","307,470","303,157","318,821","322,525","322,968","331,375","335,345","345,607","363,868","377,557","(R) 377,462","361,847","385,835",,,
"Rural VKT, total (millions)","1,081,527","1,175,993","1,398,324","1,421,941","1,422,816","1,427,015","1,461,833","1,501,983","1,545,282","1,608,180","1,661,693","1,710,126","(R) 1,743,164","1,778,459","1,815,598",,,
Interstate,"217,397","248,414","322,147","329,933","330,812","335,239","346,923","359,498","374,277","386,653","404,782","418,697","(R) 431,594","440,999","450,555",,,
Other arterialsa,"422,894","455,127","532,477","538,736","553,714","562,574","575,065","593,196","609,695","630,955","649,345","665,174","(R) 676,888","687,101","698,141",,,
Collectorb,"304,919","332,602","386,983","395,303","378,051","364,188","371,000","380,043","387,900","408,934","414,998","425,596","(R) 430,067","436,071","442,581",,,
Local,"136,318","139,850","156,716","157,968","160,239","165,014","168,844","169,245","173,410","181,639","192,568","200,659","(R) 204,615","214,287","224,320",,,
"Urban VKT per lane-kilometer, total (thousands)",987,"1,089","1,229","1,233","1,247","1,259","1,278","1,304","1,320","1,327","1,358","1,382","1,398","1,372","1,386",,,
Interstate,"5,355","6,072","7,215","7,310","7,255","7,384","7,511","7,699","7,881","8,050","8,258","8,415","(R) 8,567","8,643","8,756",,,
Other arterialsa,"2,335","2,504","2,818","2,829","2,869","2,861","2,902","2,943","2,988","3,004","3,059","3,138","(R) 3,176","3,214","3,259",,,
Collector,921,888,"1,020","1,044","1,061","1,056","1,054","1,104","1,113","1,109","1,132","1,137","1,155","1,171","1,196",,,
Local,235,271,295,288,291,288,286,291,292,296,309,318,(R) 315,291,302,,,,
"Rural VKT per lane-kilometer, total (thousands)",166,182,219,222,224,225,232,238,244,253,265,272,276,283,289,,,,
Interstate,"1,660","1,883","2,371","2,417","2,478","2,536","2,643","2,725","2,815","2,904","3,038","3,120","(R) 3,207","3,275","3,348",,,,
Other arterialsa,834,892,"1,029","1,040","1,051","1,070","1,085","1,118","1,144","1,175","1,207","1,233","(R) 1,252","1,267","1,283",,,,
Collectorb,213,227,264,269,262,254,259,268,274,288,293,301,304,308,314,,,,
Local,31,32,37,37,37,39,40,40,41,43,46,48,48,51,53,,,,
KEY:  R = revised.,,,,,,,,,,,,,,,,,,,
"a  For urban: the sum of other freeways and expressways, other principal arterials, and minor arterials.",,,,,,,,,,,,,,,,,,,
For rural: the sum of other principal arterials and minor arterials.,,,,,,,,,,,,,,,,,,,
b  Collector is the sum of major and minor collectors (rural only).,,,,,,,,,,,,,,,,,,,
NOTES,,,,,,,,,,,,,,,,,,,
See table 1-6 for estimated highway lane-kilometers by functional class.,,,,,,,,,,,,,,,,,,,
1.609344 kilometers = 1 mile.,,,,,,,,,,,,,,,,,,,
SOURCES,,,,,,,,,,,,,,,,,,,
"1980-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-202. ",,,,,,,,,,,,,,,,,,,
"1995-2002: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table VM-2 and VM-2A.",,,,,,,,,,,,,,,,,,,
Lane-kilometers:,,,,,,,,,,,,,,,,,
"1980-95:  U.S. Department of Transportation, Federal Highway Administration, Office of Highway Information Management, unpublished data, 1997, table HM-260.",,,,,,,,,,,,,,,,,
"1996-2002:  U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table HM-60.",,,,,,,,,,,,,,,,,