The role of augmented reality in navigation systems is to enhance user experience by overlaying digital information onto the real-world view. AR navigation systems provide visual cues and directions directly onto the user's field of vision, improving situational awareness and spatial orientation. This technology can assist drivers and pedestrians by highlighting key landmarks, routes, and points of interest in real-time. By making navigation more intuitive and interactive, augmented reality can lead to safer and more efficient travel experiences, particularly in complex urban environments.