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Figure 1-2: Urban Road Conditions in Michigan: 2000
Excel | CSV | Graphic Version
(Miles)
| Total |
499 |
225 |
1,973 |
517 |
39 |
| Very good |
20 |
8 |
12 |
22 |
0 |
| Good |
180 |
35 |
106 |
70 |
0 |
| Fair |
107 |
141 |
742 |
254 |
7 |
| Mediocre |
143 |
33 |
540 |
125 |
3 |
| Poor |
49 |
8 |
573 |
46 |
29 |
(Percent)
| Total |
100 |
100 |
100 |
100 |
100 |
| Very good |
4 |
4 |
1 |
4 |
0 |
| Good |
36 |
16 |
5 |
14 |
0 |
| Fair |
21 |
63 |
38 |
49 |
18 |
| Mediocre |
29 |
15 |
27 |
24 |
8 |
| Poor |
10 |
4 |
29 |
9 |
74 |
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.
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