ABSTRACT
This chapter establishes a link between the analysis schemes developed in the previous chapters with the current approaches of pavement design. Repetitions gradually emerged as one of the important considerations in the pavement design process. Some of the structural distresses considered in mechanistic-empirical pavement design are discussed. Repetitive application of load causes load fatigue failure to the bound layer of the pavement. Low-temperature shrinkage cracks along the transverse direction of the road. Temperature variations cause alternative expansion and contraction to the pavement materials. Traffic parameters are used to predict the cumulative traffic count during the design period. The design alternative arises because of choices available in the selection of layer compositions, their relative costs and the reliability level achieved. Pavement design uses the analysis (generally for static load conditions) results to obtain the predicted critical stress–strain values.
