Table 1-30M:  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   
VKT (millions),,,,,,,,,,,,,
Urban,,,,,,,,,,,,,
Interstate,"259,494","347,921","448,848","459,186","488,058","510,804","532,012","R549,636","565,812","581,619","602,896","616,545","633,148"
Other arterialsa,"779,227","930,635","1,125,306","1,138,640","1,199,956","1,245,597","1,284,094","R1,311,889","1,343,196","1,362,566","1,388,854","1,412,675","1,448,078"
Collector,"133,645","144,162","171,068","172,652","186,789","189,721","193,263","R204,272","208,104","209,445","212,303","211,708","217,770"
Local,"204,051","257,595","307,470","303,157","318,821","322,525","322,968","R331,375","335,345","357,503","367,783","377,403","379,216"
    Total,"1,376,417","1,680,313","2,052,693","2,073,635","2,193,623","2,268,647","2,332,337","R2,397,173","2,452,457","2,511,132","2,571,836","2,618,331","2,678,212"
,,,,,,,,,,,,,
Rural,,,,,,,,,,,,,
Interstate,"217,397","248,414","322,147","329,933","330,812","335,239","346,923","359,498","374,277","386,653","404,782","418,526","432,673"
Other arterialsa,"422,894","455,127","532,477","538,736","553,714","562,574","575,065","593,196","609,695","630,956","649,345","664,903","676,564"
Collectorb,"304,919","332,602","386,983","395,303","378,051","364,188","371,000","380,043","387,900","409,359","414,982","425,423","430,358"
Local,"136,318","139,850","156,716","157,968","160,239","165,014","168,844","169,245","173,410","184,548","194,079","202,576","205,769"
    Total,"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","1,611,517","1,663,188","1,711,428","1,745,364"
,,,,,,,,,,,,,,
VKT per lane-kilometers ,,,,,,,,,,,,,,
   (thousands),,,,,,,,,,,,,,
,,,,,,,,,,,,,,
Urban,,,,,,,,,,,,,,
Interstate,"3,327","3,773","4,483","4,542","4,508","4,588","4,667","R4,784","4,897","R5,002","R5,131","5,229","5,325",
Other arterialsa,"1,451","1,556","1,751","1,758","1,783","1,778","1,803","R1,829","1,857","R1,866","R1,901","1,950","1,977",
Collector,572,552,634,649,659,656,655,686,692,R689,R703,706,718,
Local,146,168,184,179,181,179,178,181,292,R190,R194,198,197,
    Total,613,677,764,766,775,782,794,R810,820,R829,R845,858,869,
,,,,,,,,,,,,,,
Rural,,,,,,,,,,,,,,
Interstate,"1,031","1,170","1,473","1,502","1,540","1,576","1,642","1,693","1,749","1,804","R1,888","1,939","1,998",
Other arterialsa,518,555,640,646,653,665,674,695,R711,R730,R750,766,779,
Collectorb,132,141,164,167,163,158,161,167,274,179,182,187,189,
Local,19,20,23,23,23,24,25,25,25,27,29,30,30,
    Total,103,113,136,138,139,140,144,148,R152,157,R165,169,172,
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.,,,,,,,,,,,,,,
Numbers may differ slightly from previous year's metric tables because a higher precision conversion factor was used. 1 mile = 1.609344 kilometers.,,,,,,,,,,,,,,
,,,,,,,,,,,,,,
"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. ",,,,,,,,,,,,,,
"1995-1998, 2000: Ibid., Highway Statistics (Washington, DC: Annual issues), tables VM-2 and VM-2A.",,,,,,,,,,,,,,
"1999: U.S. Department of Transportation, Federal Highway Administration, Office of Highway Information Management, personal communication, June 5, 2002.",,,,,,,,,,,,,,
Lane-kilometers:,,,,,,,,,,,,,,
"1980-95:  Ibid., Office of Highway Information Management, unpublished data, 1997, table HM-260.",,,,,,,,,,,,,,
"1996-1998, 2000:  Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-60.",,,,,,,,,,,,,,
"1999: Ibid., personal communication, June 5, 2002.",,,,,,,,