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

Tuesday, January 3, 2012

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

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(Miles)

  Interstate Other freeways and expressways Other principal arterial Urban minor arterial Urban collector
Total 39 11 134 159 217
Very good 0 0 18 0 0
Good 7 5 49 18 17
Fair 11 6 54 91 80
Mediocre 10 0 6 29 62
Poor 11 0 7 21 58

(Percent)

  Interstate Other freeways and expressways Other principal arterial Urban minor arterial Urban collector
Total 100 100 100 100 100
Very good 0 0 13 0 0
Good 18 45 37 11 8
Fair 28 55 40 57 37
Mediocre 26 0 4 18 29
Poor 28 0 5 13 27

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.