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Policy Information

Highway Statistics 2008

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

October 2009
Table HM-36

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TRAFFIC LANES AND ACCESS CONTROL NATIONAL HIGHWAY SYSTEM OTHER FEDERAL - AID HIGHWAYS 2/ ALL FEDERAL-AID HIGHWAYS 2/
INTERSTATE OTHER TOTAL
MILES PERCENT MILES PERCENT MILES PERCENT MILES PERCENT MILES PERCENT
Rural:
One-way streets - 0.0 10 0.0 10 0.0 346 0.1 356 0.1
2 lanes 943 3.1 53,613 65.6 54,556 48.7 553,574 98.0 608,130 89.8
3 lanes 65 0.2 1,765 2.2 1,830 1.6 1,251 0.2 3,081 0.5
4 or more lanes - undivided 3/ 8 0.0 3,420 4.2 3,428 3.1 4,172 0.7 7,600 1.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 1 0.0 11,352 13.9 11,353 10.1 4,551 0.8 15,904 2.3
Partial 12 0.0 7,492 9.2 7,504 6.7 1,117 0.2 8,621 1.3
Full 29,104 96.6 4,131 5.1 33,235 29.7 126 0.0 33,361 4.9
Total Rural 30,133 100.0 81,783 100.0 111,916 100.0 565,137 100.0 677,053 100.0
Small urban area:
One-way streets - 0.0 124 1.6 124 1.3 627 1.1 751 1.1
2 lanes - 0.0 2,180 28.7 2,180 22.0 46,967 84.2 49,147 74.8
3 lanes - 0.0 121 1.6 121 1.2 512 0.9 633 1.0
4 or more lanes - undivided 3/ - 0.0 1,595 21.0 1,595 16.1 5,082 9.1 6,677 10.2
Divided highways - 4 or more lanes: 3/
Degree of access control:
None - 0.0 1,503 19.8 1,503 15.2 1,905 3.4 3,408 5.2
Partial - 0.0 1,218 16.0 1,218 12.3 586 1.1 1,804 2.7
Full 2,311 100.0 849 11.2 3,160 31.9 85 0.2 3,245 4.9
Total Small Urban Area 2,311 100.0 7,590 100.0 9,901 100.0 55,764 100.0 65,665 100.0
Urbanized Area:                    
One-way streets 6 0.0 511 1.9 517 1.2 6,750 3.3 7,267 2.9
2 lanes 11 0.1 3,872 14.3 3,883 9.4 142,723 69.3 146,606 59.2
3 lanes 7 0.0 156 0.6 163 0.4 1,903 0.9 2,066 0.8
4 or more lanes - undivided 3/ 5 0.0 4,737 17.5 4,742 11.4 30,116 14.6 34,858 14.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 16 0.1 6,170 22.7 6,186 14.9 20,240 9.8 26,426 10.7
Partial 90 0.6 4,294 15.8 4,384 10.6 3,521 1.7 7,905 3.2
Full 14,206 99.1 7,384 27.2 21,590 52.1 785 0.4 22,375 9.0
Total Urbanized Area 14,341 100.0 27,124 100.0 41,465 100.0 206,038 100.0 247,503 100.0
Total Urban:
One-way streets 6 0.0 635 1.8 641 1.2 7,377 2.8 8,018 2.6
2 lanes 11 0.1 6,052 17.4 6,063 11.8 189,690 72.5 195,753 62.5
3 lanes 7 0.0 277 0.8 284 0.6 2,415 0.9 2,699 0.9
4 or more lanes - undivided 3/ 5 0.0 6,332 18.2 6,337 12.3 35,198 13.4 41,535 13.3
Divided highways - 4 or more lanes: 3/
Degree of access control:
None 16 0.1 7,673 22.1 7,689 15.0 22,145 8.5 29,834 9.5
Partial 90 0.5 5,512 15.9 5,602 10.9 4,107 1.6 9,709 3.1
Full 16,517 99.2 8,233 23.7 24,750 48.2 870 0.3 25,620 8.2
Total Urban 16,652 100.0 34,714 100.0 51,366 100.0 261,802 100.0 313,168 100.0
Total Rural and Urban 46,785   116,497   163,282   826,939   990,221  

1/ Includes the 50 States, the District of Columbia, and Puerto Rico. Indiana excludes up to 788 miles of Federal agency roads.

2/ Some differences from other tables may be noted because these are estimated from sample data and do 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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