Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional Systema
Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional Systema
1980 | 1985 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | R,d1998 | R1999 | 2000 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TOTAL lane-miles | 7,922,174 | 8,017,994 | 8,051,081 | 8,087,793 | 8,124,090 | 8,132,196 | 8,143,014 | 8,158,253 | 8,178,654 | R8,242,437 | 8,160,858 | 8,177,983 | 8,223,393 |
Urban | |||||||||||||
Interstates | 48,458 | 57,295 | 62,214 | 62,826 | 67,266 | 69,184 | 70,832 | 71,377 | 71,790 | R72,257 | 73,006 | 73,293 | 73,915 |
Other arterialsb | 333,673 | 371,649 | 399,376 | 402,360 | 418,208 | 435,386 | 442,474 | 445,828 | 449,480 | R453,623 | 454,060 | 450,411 | 455,857 |
Collectors | 145,128 | 162,377 | 167,770 | 165,288 | 176,137 | 179,653 | 183,353 | 185,032 | 186,923 | R188,850 | 187,533 | 186,334 | 188,568 |
Local | 867,986 | 951,018 | 1,041,136 | 1,052,278 | 1,097,120 | 1,119,552 | 1,129,218 | 1,137,870 | 1,149,456 | R1,167,946 | 1,177,009 | 1,185,948 | 1,196,840 |
Total | 1,395,245 | 1,542,339 | 1,670,496 | 1,682,752 | 1,758,731 | 1,803,775 | 1,825,877 | 1,840,107 | 1,857,649 | R1,882,676 | 1,891,608 | 1,895,986 | 1,915,180 |
Rural | |||||||||||||
Interstates | 130,980 | 131,907 | 135,871 | 136,503 | 133,467 | 132,138 | 131,266 | 131,916 | 132,963 | 133,165 | 133,231 | 134,198 | 134,587 |
Other arterialsb | 507,098 | 510,005 | 517,342 | 517,813 | 526,714 | 525,906 | 529,818 | 530,706 | 532,856 | R536,989 | 537,993 | 539,293 | 539,918 |
Collectorsc | 1,431,267 | 1,466,789 | 1,467,602 | 1,467,561 | 1,441,466 | 1,434,473 | 1,432,189 | 1,417,428 | 1,416,662 | R1,418,637 | 1,415,774 | 1,413,953 | 1,414,665 |
Local | 4,457,584 | 4,366,954 | 4,259,770 | 4,283,164 | 4,263,712 | 4,235,904 | 4,223,864 | 4,238,096 | 4,238,524 | R4,270,970 | 4,182,252 | 4,194,553 | 4,219,043 |
Total | 6,526,929 | 6,475,655 | 6,380,585 | 6,405,041 | 6,365,359 | 6,328,421 | 6,317,137 | 6,318,146 | 6,321,005 | R6,359,761 | 6,269,250 | 6,281,997 | 6,308,213 |
KEY: R = revised.
a Includes the 50 States and the District of Columbia.
b 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.
c Includes minor and major collectors.
d Beginning in 1998, approximately 86,000 lane-miles of Bureau of Land Management roads are excluded.
NOTE: In estimating rural and urban lane mileage, the U.S. Department of Transportation, Federal Highway Administration assumed that rural minor collectors and urban/rural local roads are two lanes wide.
SOURCES: 1980-95: U.S. Department of Transportation, Federal Highway Administration, Office of Highway Information Management, table HM-260 (unpublished).
1996-1998, 2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-60. Internet address www.fhwa.dot.gov/ohim.ohimstat.htm as of Dec. 27, 2001.
1999: Ibid., personal communication, June 5, 2002.