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Highway Statistics 2007

Federal - Aid Highway Length - 2007 1/ Kilometers by Traffic Lanes and Access Control National Summary

October 2008
Table HM-36M

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TRAFFIC LANES AND ACCESS CONTROL NATIONAL HIGHWAY SYSTEM OTHER FEDERAL - AID HIGHWAYS 2/ ALL FEDERAL-AID HIGHWAYS2/
INTERSTATE OTHER TOTAL
KILOMETERS PERCENT KILOMETERS PERCENT KILOMETERS PERCENT KILOMETERS PERCENT KILOMETERS PERCENT
Rural:
One-way streets - 0.0 18 0.0 18 0.0 789 0.1 806 0.1
2 lanes 1,503 3.1 86,729 65.7 88,232 48.8 892,270 97.9 980,502 89.8
3 lanes 105 0.2 2,623 2.0 2,728 1.5 1,897 0.2 4,625 0.4
4 or more lanes - undivided 3/ 13 0.0 5,581 4.2 5,594 3.1 6,767 0.7 12,361 1.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 3 0.0 17,687 13.4 17,690 9.8 7,535 0.8 25,225 2.3
Partial 19 0.0 12,088 9.2 12,107 6.7 1,661 0.2 13,768 1.3
Full 47,141 96.6 7,269 5.5 54,410 30.1 275 0.0 54,686 5.0
Total Rural 48,784 100.0 131,995 100.0 180,779 100.0 911,194 100.0 1,091,974 100.0
Small urban area:
One-way streets - 0.0 192 1.6 192 1.2 1,017 1.2 1,209 1.2
2 lanes - 0.0 3,457 28.6 3,457 22.1 74,162 84.0 77,619 74.7
3 lanes - 0.0 216 1.8 216 1.4 893 1.0 1,109 1.1
4 or more lanes - undivided 3/ - 0.0 2,494 20.7 2,494 15.9 8,061 9.1 10,556 10.2
Divided highways - 4 or more lanes: 3/
Degree of access control:
None - 0.0 2,469 20.5 2,469 15.8 3,030 3.4 5,499 5.3
Partial - 0.0 1,867 15.5 1,867 11.9 972 1.1 2,839 2.7
Full 3,582 100.0 1,373 11.4 4,955 31.7 175 0.2 5,131 4.9
Total Small Urban Area 3,582 100.0 12,067 100.0 15,649 100.0 88,311 100.0 103,960 100.0
Urbanized Area:
One-way streets 13 0.1 774 1.8 787 1.2 9,328 2.9 10,115 2.6
2 lanes 19 0.1 6,259 14.6 6,278 9.6 223,448 69.7 229,726 59.5
3 lanes 11 0.0 266 0.6 277 0.4 2,906 0.9 3,183 0.8
4 or more lanes - undivided 3/ 8 0.0 7,475 17.4 7,483 11.4 45,813 14.3 53,297 13.8
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 27 0.1 9,844 23.0 9,872 15.0 32,129 10.0 42,001 10.9
Partial 145 0.6 6,598 15.4 6,743 10.3 5,720 1.8 12,463 3.2
Full 22,586 99.0 11,637 27.2 34,223 52.1 1,308 0.4 35,531 9.2
Total Urbanized Area 22,809 100.0 42,854 100.0 65,663 100.0 320,652 100.0 386,315 100.0
Total Urban:
One-way streets 13 0.0 966 1.8 978 1.2 10,345 2.5 11,323 2.3
2 lanes 19 0.1 9,716 17.7 9,735 12.0 297,610 72.8 307,344 62.7
3 lanes 11 0.0 481 0.9 492 0.6 3,800 0.9 4,292 0.9
4 or more lanes - undivided 3/ 8 0.0 9,970 18.2 9,978 12.3 53,874 13.2 63,852 13.0
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 27 0.1 12,313 22.4 12,340 15.2 35,159 8.6 47,500 9.7
Partial 145 0.5 8,465 15.4 8,610 10.6 6,692 1.6 15,302 3.1
Full 26,168 99.2 13,010 23.7 39,178 48.2 1,484 0.4 40,662 8.3
Total Urban 26,392 100.0 54,920 100.0 81,312 100.0 408,963 100.0 490,275 100.0
Total Rural and Urban 75,176   186,916   262,091   1,320,158   1,582,249  

1/ Includes the 50 States, the District of Columbia, and Puerto Rico. Due to conversion from English to metric units and to rounding, individual cell values may not agree with corresponding mileage table cell values. Indiana excludes up to 1,268 kilometers of Federal agency roads. Minnesota excludes 703 kilometers of local government owned roads.

2/ Some differences from other tables may be noted because these are estimated from sample data and to not include samples entirely on structures.

3/ Differences may exist from prior years due to the redefinition of divided and undivided roadways in 1999.

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Updated: 01/03/2012

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United States Department of Transportation - Federal Highway Administration