Figure 1-1: Rural Road Conditions in Arizona: 2000

Figure 1-1: Rural Road Conditions in Arizona: 2000

Excel | CSV | Graphic Version

(Miles)

  Interstate Other Principal Arterial Minor Arterial Major Collector
Total 997 1,117 1,196 2,723
Very good 882 307 257 359
Good 99 360 476 602
Fair 8 236 159 1,696
Mediocre 7 201 249 66
Poor 1 13 55 0
Not reported 0 67 59 N

(Percent)

  Interstate Other Principal Arterial Minor Arterial Major Collector
Total 100 100 100 100
Very good 88 27 21 13
Good 10 32 40 22
Fair 1 21 13 62
Mediocre 1 18 21 2
Poor 0 1 5 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.