Two typical procedures associated with roadway pavement design are empirical-based and structural analysis methods. Furthermore, the layered structure of the pavement is intended to ensure that the vehicle contact pressure is distributed in such a way that critical responses at the bottom layer of the pavement are low enough to avoid severe damage. The primary function of the pavement structure is to keep distresses, including fatigue cracking and permanent deformation, to an acceptable limit so that the pavement can withstand applied vehicle load and repetitions during the service duration. Transport and international agencies invest millions of dollars on road projects to support countries develop their infrastructure therefore, it is important to ensure longer service life and value for money.
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