This study demonstrates the ability of improving the performance of asphalt mixtures produced in the local asphalt plants using different types of polymers obtained from plastic waste in Mosul landfills using both wet and dry processes. Two materials were used in the wet process, (PET) and (PS) with percentages (1-5)% by weight of asphalt binder. (PET) and (LDPE) materials were used in the dry process with percentages (0.25, 0.5, 0.75 and 1.0)% by weight of aggregates. For the purpose of comparing the efficiency of the local additives with the efficiency of the global additives available,...