Table 1-3: District of Columbia Road Condition by Functional System - Urban

Table 1-3: District of Columbia Road Condition by Functional System - Urban

(Miles)

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 12 13 11 13 14 13
Very good 0 0 0 0 0 0
Good 0 6 1 1 3 3
Fair 1 0 1 2 2 2
Mediocre 3 4 5 5 1 1
Poor 8 3 4 5 8 7
Not reported 0 0 0 0 1 0
Other freeways and expressways (total reported) 14 18 15 16 17 18
Very good 0 0 0 1 0 0
Good 0 1 0 0 0 0
Fair 1 15 8 8 6 7
Mediocre 5 1 3 3 5 5
Poor 8 1 4 4 6 6
Not reported 5 1 2 2 2 1
Other principal arterial (total reported) 28 78 88 87 87 87
Very good 0 0 1 0 0 0
Good 0 0 0 0 0 0
Fair 4 24 2 2 7 7
Mediocre 10 23 10 10 22 22
Poor 14 31 75 75 58 58
Not reported 53 2 10 10 4 3
Urban minor arterial (total reported) N N N N N 0
Very good N N N N N 0
Good N N N N N 0
Fair N N N N N 0
Mediocre N N N N N 0
Poor N N N N N 0
Not reported N N N N N N
Urban collector (total reported) N N N N N 0
Very good N N N N N 0
Good N N N N N 0
Fair N N N N N 0
Mediocre N N N N N 0
Poor N N N N N 0
Not reported N N N N N N

NOTE: In 2000, the Federal Highway Administration began reporting road condition for urban minor arterials and urban collectors using the International Roughness Index, if available. In prior years, data were only available using the Present Serviceability Rating.

KEY FOR DATA ON THIS PAGE: N = data do not exist.

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.