A comprehensive evaluation of the response of unbound granular pavements under realistic loading conditions is crucial for advancing the current knowledge of their behavior. A meticulous assessment of the stress and strain variations across different pavement layers under moving loads is fundamental for their optimal design. This article presents the findings of three-dimensional (3D) finite element (FE) analyses conducted on unpaved unbound granular pavements, considering the effect of moving loads. A parametric investigation is carried out to explore the effect of axle loads on the performance of unpaved roads, particularly the tire-pavement contact pressure and pavement deflection. The results reveal that the tire-pavement contact area increases with an increase in axle load. In addition, peak pavement displacement and peak tire-pavement contact stresses increase by 49% and 18%, respectively, with a rise in axle load from 80 to 120 kN. The results predicted using the 3D FE analyses are also compared with those obtained from the conventional approach typically employed by practicing engineers.