Distance to Primary Highways (m) | <168 | 0 |
168 - 336 | 1 | |
336 - 500 | 3 | |
>500 | 6 | |
Permeability (liter/day/m2) | <24 | 0 |
24 - 12 | 1 | |
12 - 8 | 2 | |
8 - 2 | 3 | |
2 - 0.75 | 4 | |
0.75 - 0.5 | 5 | |
0.5 - 0.25 | 6 | |
Slope (%) | <0.5 | 0 |
0.6 | 1 | |
0.7 | 2 | |
0.9 | 3 | |
1.1 | 4 | |
1.2 | 5 | |
1.5 | 6 |