Figure 1-1: Rural Road Conditions in Montana: 2000
Figure 1-1: Rural Road Conditions in Montana: 2000
Excel | CSV | Graphic Version
(Miles)
Interstate | Other Principal Arterial | Minor Arterial | Major Collector | |
---|---|---|---|---|
Total | 1,134 | 2,616 | 2,989 | 37 |
Very good | 354 | 322 | 374 | 0 |
Good | 501 | 1,549 | 1,608 | 0 |
Fair | 123 | 688 | 919 | 37 |
Mediocre | 144 | 48 | 88 | 0 |
Poor | 12 | 9 | 0 | 0 |
(Percent)
Interstate | Other principal arterial | Minor arterial | Major collector | |
---|---|---|---|---|
Total | 1,134 | 2,616 | 2,989 | 37 |
Very good | 31 | 12 | 13 | 0 |
Good | 44 | 59 | 54 | 0 |
Fair | 11 | 26 | 31 | 100 |
Mediocre | 13 | 2 | 3 | 0 |
Poor | 1 | 0 | 0 | 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: 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.