 |
|
|
|
Figure 1-1: Urban Road Conditions in the District of Columbia: 2000
Excel | CSV | Graphic Version
(Miles)
| Total |
13 |
18 |
87 |
N |
N |
| Very good |
0 |
0 |
0 |
N |
N |
| Good |
3 |
0 |
0 |
N |
N |
| Fair |
2 |
7 |
7 |
N |
N |
| Mediocre |
1 |
5 |
22 |
N |
N |
| Poor |
7 |
6 |
58 |
N |
N |
(Percent)
| Total |
100 |
100 |
100 |
N |
N |
| Very good |
0 |
0 |
0 |
N |
N |
| Good |
23 |
0 |
0 |
N |
N |
| Fair |
15 |
39 |
8 |
N |
N |
| Mediocre |
8 |
28 |
25 |
N |
N |
| Poor |
54 |
33 |
67 |
N |
N |
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.
|
|
|
|
|
