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

Highway Statistics 2007

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

October 2008
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		OTHER FEDERAL - AID HIGHWAYS 2/		ALL FEDERAL-AID HIGHWAYS 2/
	MILES	PERCENT	MILES	PERCENT	MILES	PERCENT	MILES	PERCENT	MILES	PERCENT
Rural:
One-way streets	-	0.0	11	0.0	11	0.0	490	0.1	501	0.1
2 lanes	934	3.1	53,891	65.7	54,825	48.8	554,431	97.9	609,256	89.8
3 lanes	65	0.2	1,630	2.0	1,695	1.5	1,179	0.2	2,874	0.4
4 or more lanes - undivided 3/	8	0.0	3,468	4.2	3,476	3.1	4,205	0.7	7,681	1.1
Divided highways - 4 or more lanes: 3/
Degree of access control:
None	2	0.0	10,990	13.4	10,992	9.8	4,682	0.8	15,674	2.3
Partial	12	0.0	7,511	9.2	7,523	6.7	1,032	0.2	8,555	1.3
Full	29,292	96.6	4,517	5.5	33,809	30.1	171	0.0	33,980	5.0
Total Rural	30,313	100.0	82,018	100.0	112,331	100.0	566,190	100.0	678,521	100.0
Small urban area:
One-way streets	-	0.0	119	1.6	119	1.2	632	1.2	751	1.2
2 lanes	-	0.0	2,148	28.6	2,148	22.1	46,082	84.0	48,230	74.7
3 lanes	-	0.0	134	1.8	134	1.4	555	1.0	689	1.1
4 or more lanes - undivided 3/	-	0.0	1,550	20.7	1,550	15.9	5,009	9.1	6,559	10.2
Divided highways - 4 or more lanes: 3/
Degree of access control:
None	-	0.0	1,534	20.5	1,534	15.8	1,883	3.4	3,417	5.3
Partial	-	0.0	1,160	15.5	1,160	11.9	604	1.1	1,764	2.7
Full	2,226	100.0	853	11.4	3,079	31.7	109	0.2	3,188	4.9
Total Small Urban Area	2,226	100.0	7,498	100.0	9,724	100.0	54,874	100.0	64,598	100.0
Urbanized Area:
One-way streets	8	0.1	481	1.8	489	1.2	5,796	2.9	6,285	2.6
2 lanes	12	0.1	3,889	14.6	3,901	9.6	138,844	69.7	142,745	59.5
3 lanes	7	0.0	165	0.6	172	0.4	1,806	0.9	1,978	0.8
4 or more lanes - undivided 3/	5	0.0	4,645	17.4	4,650	11.4	28,467	14.3	33,117	13.8
Divided highways - 4 or more lanes: 3/
Degree of access control:
None	17	0.1	6,117	23.0	6,134	15.0	19,964	10.0	26,098	10.9
Partial	90	0.6	4,100	15.4	4,190	10.3	3,554	1.8	7,744	3.2
Full	14,034	99.0	7,231	27.2	21,265	52.1	813	0.4	22,078	9.2
Total Urbanized Area	14,173	100.0	26,628	100.0	40,801	100.0	199,244	100.0	240,045	100.0
Total Urban:
One-way streets	8	0.0	600	1.8	608	1.2	6,428	2.5	7,036	2.3
2 lanes	12	0.1	6,037	17.7	6,049	12.0	184,926	72.8	190,975	62.7
3 lanes	7	0.0	299	0.9	306	0.6	2,361	0.9	2,667	0.9
4 or more lanes - undivided 3/	5	0.0	6,195	18.2	6,200	12.3	33,476	13.2	39,676	13.0
Divided highways - 4 or more lanes: 3/
Degree of access control:
None	17	0.1	7,651	22.4	7,668	15.2	21,847	8.6	29,515	9.7
Partial	90	0.5	5,260	15.4	5,350	10.6	4,158	1.6	9,508	3.1
Full	16,260	99.2	8,084	23.7	24,344	48.2	922	0.4	25,266	8.3
Total Urban	16,399	100.0	34,126	100.0	50,525	100.0	254,118	100.0	304,643	100.0
Total Rural and Urban	46,712		116,144		162,856		820,308		983,164

1/ Includes the 50 States, the District of Columbia, and Puerto Rico. Indiana excludes up to 788 miles of Federal agency roads. Minnesota excludes 437 miles of local government owned 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.