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policyinformation/statistics/2007 Table HM-36M - Highway Statistics 2007 - FHWA

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		OTHER FEDERAL - AID HIGHWAYS 2/		ALL FEDERAL-AID HIGHWAYS2/
	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.