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

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

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(Miles)

  Interstate Other Freeways and Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 1,095 1,320 5,886 10,267 9,671
Very good 32 13 23 48 39
Good 184 190 200 244 109
Fair 160 916 2,640 3,743 2,262
Mediocre 494 138 1,869 3,449 2,956
Poor 225 63 1,154 2,783 4,305
Not reported 1 24 53 0 0

(Percent)

  Interstate Other Freeways and Expressways Other Principal Arterial Urban Minor Arterial Urban Collector
Total 100 100 100 100 100
Very good 3 1 0 0 0
Good 17 14 3 2 1
Fair 15 69 45 36 23
Mediocre 45 10 32 34 31
Poor 21 5 20 27 45

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.