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

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

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(Miles)

  Interstate Other Freeways & Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 305 20 1,022 657 35
Very good 86 2 259 127 1
Good 115 13 489 219 34
Fair 35 2 261 296 0
Mediocre 62 3 10 15 0
Poor 7 0 3 0 0

(Percent)

  Interstate Other freeways and expressways Other principal arterial Urban minor arterial Urban collector
Total 100 100 100 100 100
Very good 28 10 25 19 3
Good 38 65 48 33 97
Fair 11 10 26 45 0
Mediocre 20 15 1 2 0
Poor 2 0 0 0 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.