Road category/Design catalogue | Subgrade strength | DSN800 by Pavement class (80 kN axles) | ||||
3000 to 10,000 | 10,000 to 30,000 | 30,000 to 100,000 | 100,000 to 300,000 | 300,000 to 1,000,000 | ||
DCP DN | * | 39 | 52 | 71 | 100 | 142 |
TRH 4 | * | 42 | 52 | 56 - 71 | 63 - 73 | 65 - 89 |
ORN 31 | S2 S4 |
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|
| 83 81 | 98 95 |
DCP CBR | S2 S4 |
|
| 59 (70 )** 50 (64)** | 68 (78)** 67 (79)** | 88 (92)** 84 (95)** |
IRC | CBR = 3% |
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| 83 70 (no asphalt) |
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