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Highway Statistics 2008

Federal - Aid Highway Length - 2008 1/ Kilometers by Traffic Lanes and Access Control National Summary

October 2009
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 16 0.0 16 0.0 557 0.1 573 0.1
2 lanes 1,518 3.1 86,282 65.6 87,799 48.7 890,891 98.0 978,690 89.8
3 lanes 105 0.2 2,840 2.2 2,945 1.6 2,013 0.2 4,958 0.5
4 or more lanes - undivided 3/ 13 0.0 5,504 4.2 5,517 3.1 6,714 0.7 12,231 1.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 2 0.0 18,269 13.9 18,271 10.1 7,324 0.8 25,595 2.3
Partial 19 0.0 12,057 9.2 12,077 6.7 1,798 0.2 13,874 1.3
Full 46,838 96.6 6,648 5.1 53,487 29.7 203 0.0 53,689 4.9
Total Rural 48,494 100.0 131,617 100.0 180,111 100.0 909,500 100.0 1,089,611 100.0
Small urban area:
One-way streets - 0.0 200 1.6 200 1.3 1,009 1.1 1,209 1.1
2 lanes - 0.0 3,508 28.7 3,508 22.0 75,586 84.2 79,094 74.8
3 lanes - 0.0 195 1.6 195 1.2 824 0.9 1,019 1.0
4 or more lanes - undivided 3/ - 0.0 2,567 21.0 2,567 16.1 8,179 9.1 10,746 10.2
Divided highways - 4 or more lanes: 3/
Degree of access control:
None - 0.0 2,419 19.8 2,419 15.2 3,066 3.4 5,485 5.2
Partial - 0.0 1,960 16.0 1,960 12.3 943 1.1 2,903 2.7
Full 3,719 100.0 1,366 11.2 5,086 31.9 137 0.2 5,222 4.9
Total Small Urban Area 3,719 100.0 12,215 100.0 15,934 100.0 89,743 100.0 105,678 100.0
Urbanized Area:
One-way streets 10 0.0 822 1.9 832 1.2 10,863 3.3 11,695 2.9
2 lanes 18 0.1 6,231 14.3 6,249 9.4 229,690 69.3 235,939 59.2
3 lanes 11 0.0 251 0.6 262 0.4 3,063 0.9 3,325 0.8
4 or more lanes - undivided 3/ 8 0.0 7,623 17.5 7,632 11.4 48,467 14.6 56,099 14.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 26 0.1 9,930 22.7 9,955 14.9 32,573 9.8 42,529 10.7
Partial 145 0.6 6,911 15.8 7,055 10.6 5,667 1.7 12,722 3.2
Full 22,862 99.1 11,883 27.2 34,746 52.1 1,263 0.4 36,009 9.0
Total Urbanized Area 23,080 100.0 43,652 100.0 66,731 100.0 331,586 100.0 398,317 100.0
Total Urban:
One-way streets 10 0.0 1,022 1.8 1,032 1.2 11,872 2.8 12,904 2.6
2 lanes 18 0.1 9,740 17.4 9,757 11.8 305,276 72.5 315,034 62.5
3 lanes 11 0.0 446 0.8 457 0.6 3,887 0.9 4,344 0.9
4 or more lanes - undivided 3/ 8 0.0 10,190 18.2 10,198 12.3 56,646 13.4 66,844 13.3
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 26 0.1 12,348 22.1 12,374 15.0 35,639 8.5 48,013 9.5
Partial 145 0.5 8,871 15.9 9,016 10.9 6,610 1.6 15,625 3.1
Full 26,582 99.2 13,250 23.7 39,831 48.2 1,400 0.3 41,231 8.2
Total Urban 26,799 100.0 55,867 100.0 82,666 100.0 421,329 100.0 503,995 100.0
Total Rural and Urban 75,293   187,484   262,777   1,330,829   1,593,606  

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.

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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