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

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

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(Miles)

  Interstate Other Freeways & Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 184 224 880 132 8
Very good 2 3 8 0 1
Good 182 193 461 55 7
Fair 0 24 236 22 0
Mediocre 0 4 142 33 0
Poor 0 0 33 22 0

(Percent)

  Interstate Other Freeways & Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 100 100 100 100 100
Very good 1 1 1 0 13
Good 99 86 52 42 88
Fair 0 10 27 17 0
Mediocre 0 2 16 25 0
Poor 0 0 4 17 0

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 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.