Data for Figure 1-2: Urban Road Conditions in Oregon: 2000,,,,,, (Miles),,,,,, ,Interstate ,Other Freeways & Expressways,Other Principal Arterial ,Urban Minor Arterial ,Urban Collector, Total,142,51,545,203,36, Very good ,0,0,0,7,0, Good,29,1,32,2,0, Fair,70,37,384,124,4, Mediocre ,43,1,92,43,30, Poor,0,0,37,27,2, ,,,,,, ,,,,,, (Percent),,,,,, ,Interstate ,Other Freeways & Expressways,Other Principal Arterial ,Urban Minor Arterial ,Urban Collector, Total,100,100,100,100,100, Very good ,0,0,0,3,0, Good,20,2,6,1,0, Fair,49,96,70,61,11, Mediocre ,30,2,17,21,83, Poor,0,0,7,13,6, ,,,,,, 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: 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.",,,,,,