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

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

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(Miles)

  Interstate Other Principal Arterial Minor Arterial Major Collector
Total 1,030 353 223 845
Very good 13 7 0 42
Good 333 113 46 60
Fair 313 66 121 532
Mediocre 370 108 46 130
Poor 0 59 10 81
Not reported 0 455 0 0

(Percent)

  Interstate Other Principal Arterial Minor Arterial Major Collector
Total 100 100 100 100
Very good 1 2 0 5
Good 32 32 21 7
Fair 30 19 54 63
Mediocre 36 31 21 15
Poor 0 17 4 10

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.