Figure 1-1: Urban Road Conditions in the District of Columbia: 2000
Tuesday, January 3, 2012
Figure 1-1: Urban Road Conditions in the District of Columbia: 2000
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(Miles)
| Interstate | Other freeways and expressways | Other principal arterial | Urban minor arterial | Urban collector | |
|---|---|---|---|---|---|
| Total | 13 | 18 | 87 | N | N |
| Very good | 0 | 0 | 0 | N | N |
| Good | 3 | 0 | 0 | N | N |
| Fair | 2 | 7 | 7 | N | N |
| Mediocre | 1 | 5 | 22 | N | N |
| Poor | 7 | 6 | 58 | N | N |
(Percent)
| Interstate | Other freeways and expressways | Other principal arterial | Urban minor arterial | Urban collector | |
|---|---|---|---|---|---|
| Total | 100 | 100 | 100 | N | N |
| Very good | 0 | 0 | 0 | N | N |
| Good | 23 | 0 | 0 | N | N |
| Fair | 15 | 39 | 8 | N | N |
| Mediocre | 8 | 28 | 25 | N | N |
| Poor | 54 | 33 | 67 | N | N |
KEY FOR DATA ON THIS PAGE: N = data do not exist.
NOTE: Numbers may not add to 100 due to rounding.
NOTE FOR DATA ON THIS PAGE: Road condition is based on measured pavement roughness using the International Roughness Index (IRI). IRI is a measure of surface condition. A comprehensive measure of pavement condition would require data on other pavement distresses such as rutting, cracking, and faulting.
SOURCE FOR DATA ON THIS PAGE: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, Washington, DC: annual editions, tables HM-63 and HM-64, available at http://www.fhwa.dot.gov/ as of Feb. 1, 2002.