International Guidelines for Building Quieter Roads Released

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Pavement engineering firm The Transtec Group reports on The World Road Association's 2013 Quiet Pavement Technologies report.

Fine-graded asphalt being compacted by a roller.

Compaction of a fine-graded asphalt pavement, one of several pavement types addressed in The World Road Association’s Quiet Pavement Technologies report.

State-of-the-art guidance for reducing tire-pavement noise, increasing pavement longevity, and lessening the need for costly roadway reconstruction.

The World Road Association (PIARC) has released a freely available comprehensive report on quieter pavement written for engineers, agencies, and highway contractors. The 2013 Quiet Pavement Technologies report is a practical resource containing leading international knowledge on constructing quieter asphalt and portland cement concrete pavements.

The report offers practical guidance for those aiming to build quieter pavements with porous asphalt, stone-matrix asphalt, thin surfacings, asphalt-rubber mixtures, poroelastic road surfaces, surface treatments, drag textures, diamond grinding, or longitudinal tining. Each surface type is evaluated according to its acoustical effectiveness and durability, safety properties, cost, and structural performance.

Quiet Pavement Technologies delivers “state-of-the-art guidance for reducing tire-pavement noise, increasing pavement longevity, and lessening the need for costly roadway reconstruction,” according to Dr. Robert O. Rasmussen, PE, Vice President and Chief Engineer of The Transtec Group, a pavement engineering firm. Dr. Rasmussen’s findings on quieter pavement technologies are referenced throughout PIARC’s report.

PIARC assembled the team responsible for the report by nominating international experts. The PIARC sub-committee on Surface Characteristics includes members from the US, Japan, Canada, Italy, France, Mexico, Spain, Greece, and the Netherlands.

The authors considered two approaches to lessening road noise: corrective abatement measures—reducing noise after roadway construction—and preventive “integrated planning.” PIARC expects preventive planning to be “the most cost-effective and efficient approach.”

PIARC’s report also includes tire-pavement noise fundamentals and a discussion of current quieter pavement initiatives.

To access Quiet Pavement Technologies, please visit PIARC’s website to download the report at no cost.

About The Transtec Group: The Transtec Group is a pavement engineering firm that provides expertise in pavement design, research, construction, rehabilitation, software development, Public-Private Partnership (P3) projects and technology transfer for the transportation industry. A DBE and MBE firm, Transtec is a leader in Design-Build transportation projects worldwide. Transtec is based in Austin, Texas and serves clients throughout the world. For more information, please visit

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