Comparison of the noise level and the skid resistance of asphalt pavement mixtures on road surface

Traffic noise is a major environmental source of pollution both in developed and in developing countries. Pavement surface texture affects many vehicle and road characteristics; therefore, efforts are needed to develop more advanced techniques for evaluating pavement texture. The selection of an appropriate pavement as the best method to control the main cause of road noise, the sound absorption resulting from contact wheel vehicles and pavement is proposed. In this study skid resistance of porous asphalt and conventional asphalt were measured. The correlation R2 and P value of the linear regression was used for skid resistance and noise. Various pavement characteristics were measured and their effects on noise levels were evaluated using principal components regression, in addition to ordinary least-squares regression. This research confirmed that open graded pavements exhibit reduced tire noise compared to dense and gap graded mixes and quantified this reduction for typical mixes in Tehran. Correlation between Skid resistance of asphalt pavements and noise levels were determined using the statistical program.