Characteristics of Texture on Asphalt Pavement and Its Influence to the Skid Resistance

Abstract

The microtexture and macrotexture are said to have close relation to the skid resistance. Traditional measurement method gives indirect information and approximate value of texture. Therefore, prototype stationary laser profilometer was used to measure and analyze profile. To analyze the profile, frequency of amplitude was applied and the way shows the characteristics of profile on each asphalt mixture type very well. The index called PDI that is weighted arithmetic mean depth of amplitude has high correlation with skid resistance at high speed range.