TABLE 1-33:  Roadway Vehicle-Miles Traveled (VMT) and VMT per Lane-Mile by Functional Class,,,,,,,,,,,,,,,,,,,
,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
"Urban VMT, total (millions)","855,265","1,044,098","1,275,484","1,288,497","1,363,054","1,409,672","1,449,247","1,489,534","1,523,886","1,552,956","1,595,620","1,627,618","1,663,773","1,676,379","1,727,596","1,805,508","1,892,265","1,951,870","1,977,047"
Interstate,"161,242","216,188","278,901","285,325","303,265","317,399","330,577","341,528","351,579","361,433","374,622","383,259","393,465","399,890","408,618","432,633","454,385","469,070","477,283"
Other arterialsa,"484,189","578,270","699,233","707,518","745,618","773,978","797,899","815,170","834,623","846,627","862,996","878,153","900,392","913,726","937,357","973,936","1,020,089","1,048,219","1,060,098"
Collector,"83,043","89,578","106,297","107,281","116,065","117,887","120,088","126,929","129,310","130,146","131,905","131,603","135,372","137,922","141,874","153,751","162,108","168,038","173,210"
Local,"126,791","160,062","191,053","188,373","198,106","200,408","200,683","205,907","208,374","214,750","226,097","234,603","234,544","224,841","239,747","245,188","255,683","266,543","266,456"
"Rural VMT, total (millions)","672,030","730,728","868,878","883,553","884,097","886,706","908,341","933,289","960,194","999,277","1,032,528","1,062,623","1,083,152","1,105,083","1,128,160","1,085,385","1,070,248","1,037,937","1,037,069"
Interstate,"135,084","154,357","200,173","205,011","205,557","208,308","215,568","223,382","232,565","240,255","251,520","260,166","268,180","274,024","279,962","269,945","266,996","258,790","257,913"
Other arterialsa,"262,774","282,803","330,866","334,755","344,062","349,567","357,329","368,595","378,847","392,057","403,484","413,320","420,599","426,945","433,805","416,596","409,944","398,932","394,499"
Collectorb,"189,468","206,669","240,460","245,630","234,910","226,296","230,529","236,148","241,030","254,100","257,868","264,453","267,231","270,962","275,007","263,662","260,931","251,587","251,375"
Local,"84,704","86,899","97,379","98,157","99,568","102,535","104,915","105,164","107,752","112,865","119,656","124,684","127,142","133,152","139,386","135,182","132,377","128,628","133,282"
"Urban VMT per lane-mile, total (thousands)",613,677,764,766,775,782,794,810,820,825,844,858,869,852,861,856,860,862,856
Interstate,"3,327","3,773","4,483","4,542","4,508","4,588","4,667","4,784","4,897","5,002","5,131","5,229","5,323","5,370","5,440","5,436","5,479","5,455","5,427"
Other arterialsa,"1,451","1,556","1,751","1,758","1,783","1,778","1,803","1,829","1,857","1,866","1,901","1,950","1,974","1,997","2,025","2,012","2,019","2,001","1,989"
Collector,572,552,634,649,659,656,655,686,692,689,703,706,718,728,743,741,745,745,768
Local,146,168,184,179,181,179,178,181,181,184,192,198,196,181,188,183,184,187,183
"Rural VMT per lane-mile, total (thousands)",103,113,136,138,139,140,144,148,152,157,165,169,172,176,179,175,174,170,170
Interstate,"1,031","1,170","1,473","1,502","1,540","1,576","1,642","1,693","1,749","1,804","1,888","1,939","1,993","2,035","2,080","2,070","2,088","2,061","2,074"
Other arterialsa,518,555,640,646,653,665,674,695,711,730,750,766,778,787,797,780,771,753,744
Collectorb,132,141,164,167,163,158,161,167,170,179,182,187,189,192,195,190,189,183,184
Local,19,20,23,23,23,24,25,25,25,26,29,30,30,32,33,33,32,32,33
,,,,,,,,,,,,,,,,,,,
"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).,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,
NOTE,,,,,,,,,,,,,,,,,,,
See table 1-6 for estimated highway lane-miles by functional class.,,,,,,,,,,,,,,,,,,,
,,,,,,,,,,,,,,,,,,,
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. ",,,,,,,,,,,,,,,,,,,
"1995-2006: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table VM-2, Internet site www.fhwa.dot.gov/policy/ohpi as of Jan. 4, 2008.",,,,,,,,,,,,,,,,,
Lane-miles:,,,,,,,,,,,,,,,,,
"1980-95:  U.S. Department of Transportation, Federal Highway Administration, Office of Highway Information Management, unpublished data, 1997, table HM-260.",,,,,,,,,,,,,,,,,
"1996-2006:  U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table HM-60, Internet site www.fhwa.dot.gov/policy/ohpi as of Jan. 4, 2008.",,,,,,,,,,,,,,,,,