The performance of polymer modified asphalt mixtures with reclaimed asphalt pavement (RAP) is influenced by several key process parameters. These include the type and dosage of polymer used, the temperature during mixing, the shear rate applied, and the duration of mixing. Additionally, the quality and gradation of the RAP, as well as the binder content and moisture levels, play critical roles in determining the overall performance and durability of the modified asphalt mixture.