BTS | Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional System (a)

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Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional System^a

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	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 arterials^b	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 arterials^b	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
Collectors^c	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.

Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional Systema

Table 1-6: Estimated U.S. Roadway Lane-Miles by Functional System^a