Table 1-4: Arizona Road Condition by Functional System -- Urban

Table 1-4: Arizona Road Condition by Functional System -- Urban

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 178 173 172 172 173 171
Very good 67 59 65 34 96 101
Good 65 61 66 85 36 34
Fair 35 37 26 24 31 26
Mediocre 11 14 15 27 10 10
Poor 0 2 0 2 0 0
Not reported 0 0 0 0 0 0
Other freeways and expressways (total reported) 81 91 96 101 107 113
Very good 9 16 18 18 28 11
Good 31 39 45 48 46 66
Fair 20 28 21 21 23 28
Mediocre 21 8 12 14 10 8
Poor 0 0 0 0 0 0
Not reported 0 0 0 0 1 13
Other principal arterial (total reported) 1,025 1,028 1,027 1,029 1,029 267
Very good 192 202 203 201 214 50
Good 498 500 496 479 505 86
Fair 130 106 113 107 110 51
Mediocre 170 156 173 175 159 66
Poor 35 64 42 67 41 14
Not reported 0 0 0 0 0 753
Urban minor arterial (total reported) N N N N N 143
Very good N N N N N 15
Good N N N N N 16
Fair N N N N N 87
Mediocre N N N N N 19
Poor N N N N N 6
Not reported N N N N N 0
Urban collector (total reported) N N N N N 5
Very good N N N N N 0
Good N N N N N 0
Fair N N N N N 5
Mediocre N N N N N 0
Poor N N N N N 0
Not reported N N N N N 0

KEY: N = data do not exist.

NOTE: In 2000, the Federal Highway Administration began reporting road condition for urban minor arterials and urban collectors using the International Roughness Index if available. In prior years, data were only available using the Present Serviceability Rating.

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.