Modified rubber asphalt enhances performance in modified asphalt applications by improving elasticity, durability, and resistance to cracking. The incorporation of rubber particles increases the viscosity and adhesion properties of the asphalt, leading to better performance under varying temperatures and loads. This modification also reduces the susceptibility to aging and oxidative damage, resulting in a longer service life and lower maintenance costs for asphalt pavements. Overall, it significantly improves the mechanical properties and longevity of the asphalt.