JavaScript is disabled for your browser. Some features of this site may not work without it.
Analysis and Design of Pavement Surface Mixtures for Traffic Noise Reduction

Author
Lu, Qing; Alharthai, Mohammad; Elmagarhe, Asad
Abstract
Road traffic noise pollutes the living environment and has adverse effects on public health. It may be reduced at its source by a quiet pavement surface. This study investigated the relationship between design parameters of porous asphalt mixtures placed at the pavement surface and the pavement acoustic performance. A mechanistic-empirical model was developed based on a microstructural model of the acoustic absorption of porous media and regression analysis of model parameters as functions of mixture design parameters, using a set of experimental data covering a range of porous asphalt mixture designs. This model may be used to predict the acoustic absorption of porous asphalt concrete, particularly at high frequencies (1000 Hz and above). Regression models were also developed to estimate the effect of mixture design, in terms of nominal maximum aggregate size, on tire-pavement
noise at low frequencies. The impact of porous mixture design on pavement friction, in terms of skid resistance and hydroplaning speed, was also evaluated. A procedure was recommended to include the consideration of acoustic performance in the design of porous asphalt mixtures for road surfaces with frequent motor vehicle traffic.
Description
Final Report
Sponsorship
U.S. Department of Transportation 69A3551747119
Date Issued
2021-06-30Subject
Porous Asphalt Mixture; Pavement Noise; Aggregate Gradation; Sound Absorption; Mixture Design
Rights
Attribution 4.0 International
Rights URI
Type
report
Accessibility Feature
reading order; structural navigation
Accessibility Hazard
unknown
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as Attribution 4.0 International