Three-dimensional finite-element pavement-subgrade models aredeveloped in this study to simulate falling weight deflectometer(FWD) loading on highway pavements. Reasonably good agreementis found between FWD deflections measured on selected pavementsand computed dynamic deflections for pavement models subjectedto the FWD load pulse and contact simulation. Effects of loadingforce-time history and pavement cracking on the surface deflectionsresponse of an asphalt pavement are also presented. The creepmodulus of asphalt mix is predicted using a micromechanical modelwhich calculates the viscoelastic response from creep compliancetest results of the binder and elastic properties of the aggregates.