Stability Class | Exponent (p) | |
Rough Surface (urban) | Smooth Surface (rural) | |
A | 0.15 | 0.07 |
B | 0.15 | 0.07 |
C | 0.20 | 0.10 |
D | 0.25 | 0.15 |
E | 0.30 | 0.35 |
F | 0.30 | 0.35 |