Figure 1-1: Rural Road Conditions in Idaho: 2000
Tuesday, January 3, 2012
Figure 1-1: Rural Road Conditions in Idaho: 2000
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(Miles)
| Interstate | Other Principal Arterial | Minor Arterial | Major Collector | |
|---|---|---|---|---|
| Total | 526 | 1,687 | 1,283 | 1,410 |
| Very good | 189 | 215 | 178 | 141 |
| Good | 233 | 846 | 585 | 486 |
| Fair | 84 | 609 | 506 | 505 |
| Mediocre | 12 | 14 | 3 | 44 |
| Poor | 8 | 3 | 11 | 234 |
(Percent)
| Interstate | Other principal arterial | Minor arterial | Major collector | |
|---|---|---|---|---|
| Total | 100 | 100 | 100 | 100 |
| Very good | 36 | 13 | 14 | 10 |
| Good | 44 | 50 | 46 | 34 |
| Fair | 16 | 36 | 39 | 36 |
| Mediocre | 2 | 1 | 0 | 3 |
| Poor | 2 | 0 | 1 | 17 |
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.