| PRODUCT |
 |
 |
 |
 |
| TYPE OF TRAFFIC |
Pedestrian &
Small Cars |
Cars &
Pickup Trucks |
Mainetance
Trucks |
Heavy Trucks &
Fire Access |
| LOAD DETAILS |
5000 lb.
(2.5 tonne) |
8000 lb.
Axle Loads: 18kN |
H10 Loading
40,000 lb.
Axle Loads: 75kN |
H20 Loading
80,000 lb.
Axle Loads: 145kN |
| SUBGRADE CBR |
>3% CBR
Normal Hard Surface |
>3% CBR
Normal Hard Surface |
>3% CBR
Normal Hard Surface |
>3% CBR
Normal Hard Surface |
| SURFACE WEAR LAYER (overfill) |
2" |
2" |
2" |
2" |
| TOTAL SYSTEM THICKNESS |
4" |
5" |
6" |
8" |
| GEOTEXTILE (filtration & separation) |
YES
Nonwoven |
YES
Nonwoven |
YES
Nonwoven |
YES
Nonwoven |
| EQUIVALENCY TO UNCONFINED GRAVEL |
8" - 10" |
12" - 14" |
16" - 20" |
24" - 30" |
| WATER STORAGE |
1.6" |
2" |
2.4" |
3.2" |