The increasing demand for sustainable and innovative pavement solutions has led to the exploration of alternative materials and techniques in the field of pavement design. This research work seeks to contribute to the advancement of sustainable pavement solutions for improved functionality and longevity by the use of plastic cell grid. The confinement mechanism and the tensioned membrane mechanism are the two processes discussed as potential ways that plastic grid could enhance the performance of a granular base layer. By improving the mechanical properties of the aggregate layer and widening the load distribution angle, this mechanism provides stabilization by minimizing particle movement through confinement or lateral restraint by increasing shear resistance and controlling deformation under load. Internal and external confinement are the two categories of confinement. When individual aggregates are interlocked, the aggregate’s ability to move both laterally and vertically is restricted, in the internal confinement. Material contained by plastic cell walls is referred to as external confinement. The plastic grid would typically have sufficient interaction with the surrounding soils and sufficient in-plane stiffness in order to provide particle restraint. By utilizing hoop tension forces, resistance from neighboring cells, and friction between cell walls and infill material, cells limit the lateral flow of particles. The findings of this research work have the potential to significantly impact the way pavements are designed and constructed, leading to more resilient and environmentally-friendly infrastructure systems.