Value | Category | Cases | |
---|---|---|---|
-2 | don't know | 0 |
0%
|
-1 | refuse | 0 |
0%
|
1 | Paved, multi-lane in each direction | 1 |
0.7%
|
2 | Paved, single-lane in each direction | 25 |
16.7%
|
3 | Gravel, single-lane in each direction | 79 |
52.7%
|
4 | Dirt, single lane | 45 |
30%
|
Sysmiss | 899 |