Figure 1-2: Urban Road Conditions in Arizona: 2000

Figure 1-2: Urban Road Conditions in Arizona: 2000

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(Miles)

  Interstate Other Freeways & Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 171 113 267 143 5
Very good 101 11 50 15 0
Good 34 66 86 16 0
Fair 26 28 51 87 5
Mediocre 10 8 66 19 0
Poor 0 0 14 6 0
Not reported 0 13 753 N N

(Percent)

  Interstate Other Freeways & Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 100 100 100 100 100
Very good 59 10 19 10 0
Good 20 58 32 11 0
Fair 15 25 19 61 100
Mediocre 6 7 25 13 0
Poor 0 0 5 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.