Main damage on the asphalt according to AI(asphalt Institute) and SHRP(Statigic Highway Research Program) for the main category of asphalt, road design, ascon match design, construction management was Rutting(plastic deformation) for the first place. The cause of rutting was analyzed to be wrong estimation of traffic amount, wrong choice of materials of Marshall match method, inadequate construction management. The use of PMA(Polymer Modified Asphalt), which has high elasticity in high temperature and anti-aging effect in low temperature and rough aggregate is necessary to lower the rutting effect on the aspect of binder and aggregate. Very high results are shown in wheel tracking test results when the PMA is applied on 70% of aggregate that is not thinner than 3mm but between 5mm and 13mm. This improves the quality of ascon, thus it can e used to create the asphalt, which maintains durability, prevents plastic deformation in summertime and prevents cracking in wintertime.