Figure 1-2: Urban Road Conditions in Washington: 2000
Tuesday, January 3, 2012
Figure 1-2: Urban Road Conditions in Washington: 2000
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(Miles)
| Interstate | Other Freeways & Expressways | Other Principal Arterial | Urban Minor Arterial | Urban Collector | |
|---|---|---|---|---|---|
| Total | 261 | 309 | 293 | 298 | 36 |
| Very good | 63 | 30 | 23 | 8 | 0 |
| Good | 112 | 155 | 96 | 153 | 0 |
| Fair | 26 | 53 | 137 | 125 | 34 |
| Mediocre | 51 | 52 | 19 | 1 | 2 |
| Poor | 9 | 19 | 18 | 11 | 0 |
(Percent)
| Interstate | Other freeways and expressways | Other principal arterial | Urban minor arterial | Urban collector | |
|---|---|---|---|---|---|
| Total | 100 | 100 | 100 | 100 | 100 |
| Very good | 24 | 10 | 8 | 3 | 0 |
| Good | 43 | 50 | 33 | 51 | 0 |
| Fair | 10 | 17 | 47 | 42 | 94 |
| Mediocre | 20 | 17 | 6 | 0 | 6 |
| Poor | 3 | 6 | 6 | 4 | 0 |
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.