Page 107 - SAPEM-Chapter-10-2nd-edition-2014
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South African Pavement Engineering Manual
Chapter 10: Pavement Design
Figure 42. Standard Layer-Strength Diagrams for DCP Design
The DCP method, as with other methods like the SAMDM, does not use the current functional condition, i.e., the rut
depth, in the estimation of the structural capacity. To incorporate the current condition via the rut depth, a simple
linear relationship can be used, as illustrated in Figure 43.
Pavement
distress
Terminal
condition
Current
distress
Equivalent
Past Estimated
traffic remaining traffic
structural capacity
DCP structural capacity estimate
from current DCP survey data
Figure 43. Estimating Remaining Life Considering the Current Condition
Section 7: Structural Capacity Estimation: Flexible Pavements
Page 96
