Table 1-6: Maryland Road Condition by Functional System -- Urban

Table 1-6: Maryland Road Condition by Functional System -- Urban

(Miles)

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  1995 1996 1997 1998 1999 2000
Interstate (total reported) 255 255 252 253 245 238
Very good 14 14 5 5 5 4
Good 131 131 127 109 114 110
Fair 58 58 56 66 74 74
Mediocre 30 30 43 48 33 32
Poor 22 22 21 25 19 18
Not reported 0 0 0 0 9 14
Other freeways and expressways (total reported) 229 229 236 235 226 195
Very good 4 4 3 9 11 8
Good 83 83 94 83 85 75
Fair 112 112 106 108 99 95
Mediocre 18 18 21 26 19 13
Poor 12 12 12 9 12 4
Not reported 0 0 0 0 9 39
Other principal arterial (total reported) 857 857 858 859 856 632
Very good 6 6 8 9 16 14
Good 101 101 126 113 122 128
Fair 371 371 342 377 359 306
Mediocre 149 149 152 143 145 98
Poor 230 230 230 217 214 86
Not reported 0 0 0 0 3 231
Urban minor arterial (total reported) N N N N N 434
Very good N N N N N 0
Good N N N N N 31
Fair N N N N N 254
Mediocre N N N N N 80
Poor N N N N N 69
Not reported N N N N N 0
Urban collector (total reported) N N N N N 103
Very good N N N N N 0
Good N N N N N 17
Fair N N N N N 21
Mediocre N N N N N 27
Poor N N N N N 38
Not reported N N N N N N

KEY: N = data do not exist.

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.

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.