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

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

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(Miles)

  Interstate Other Principal Arterial Minor Arterial Major Collector
Total 226 535 951 1,376
Very good 17 54 18 85
Good 163 339 535 354
Fair 34 130 382 844
Mediocre 12 10 16 67
Poor 0 2 0 26
Not reported 1 0 0 N

(Percent)

  Interstate Other principal arterial Minor arterial Major collector
Total 100 100 100 100
Very good 8 10 2 6
Good 72 63 56 26
Fair 15 18 22 25
Mediocre 5 6 18 36
Poor 0 2 2 7

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.