Learning Center

Case Studies

Asphalt Rubber Phenomenon
When asphalt rubber silenced road noise in Arizona, the public demanded more.

That's the Sound of a Quiet Asphalt Pavement
Noise-absorbing asphalt pavements actually cut down on the amount of noise generated at the tire-pavement interface.

Quiet Pavements Raise the Roof in Europe
See how European countries have developed integrated strategies that include policies, materials, and designs to minimize noise.

KDOT's I-435 Project Provides Good Road, Quiet Alternative
Describes how an asphalt overlay of a concrete pavement reduced the noise level by about seven decibels on I-435 in Kansas City.

Quiet Pavement - Coming to a Highway Near You
Public agencies are using specially designed asphalt mixes to address pavement noise concerns.


Resources

Highway Noise Issues (PowerPoint presentation)
The public is demanding quieter pavements.

The History of Pavement Noise and New Directions in Arizona (PowerPoint presentation)
Road noise issues are nothing new.

Asphalt the Quiet Pavement (PowerPoint presentation)
Understanding road noise in America.

An Introduction to Tire/Pavement Noise of Asphalt Pavement (PowerPoint presentation)
An introduction to the issues surrounding tire/pavement noise for the technical community.


Research Studies

Highway Noise Control with Hot Mix Asphalt
This article describes how roadway noise is measured and the benefits of using asphalt for noise reduction.

Asphalt Pavements Mitigate Tire/Pavement Noise
The problem of roadside noise is becoming increasingly severe as the traffic is increasing on highways, especially in urban areas.

Measurement of Tire/Pavement Noise
This article explains two scientifically reliable methods of measuring roadway noise.

SQDH Center Researches Tire/Pavement Noise
The Institute for Safe, Quiet and Durable Highways (SQDH) at Purdue University conducts research aimed at reducing the highway noise while maintaining and improving the safety, durability and economics of highways.

Arkansas Tire/Pavement Noise
This paper discusses the nature of tire/pavement noise and the results of testing selected pavements in Arkansas.

Kansas Tire/Pavement Noise
This paper discusses the nature of tire/pavement noise and the results of testing selected pavements on I 435 near Kansas City.

New Jersey/Pavement Noise
This paper discusses the measurement of pavement noise on New Jersey pavements using the NCAT noise trailer.