In this episode of The STREAM by ASSHTO, Kevin Robertson, Surface Treatment Engineer at the Arizona Department of Transportation, delves into the benefits of Diamond Grinding and Concrete pavements in creating quieter roads. Robertson shares how Arizona’s innovative approach to pavement design has reduced road noise while improving durability and sustainability. A key highlight is the Maricopa Association of Governments (MAG)’s transition from Asphalt Rubber Friction Courses (ARFC) to Diamond Grinding the underlying concrete due to high maintenance costs.
This shift to Diamond Grinding can result in quieter, longer-lasting pavements, providing a durable solution expected to last over 20 years. This cost-effective approach can deliver consistently low noise levels for Arizona drivers while simultaneously reducing maintenance expenses. The change is also an environmental win, with lighter-colored concrete surfaces contributing to cooler urban temperatures, an important factor in the region’s climate.
Tune in to hear how Arizona’s transportation leaders are leveraging advanced pavement technologies to create quieter and more sustainable roadways. Robertson’s insights offer valuable lessons for agencies seeking to improve both the longevity and environmental impact of their transportation infrastructure.
Listen here: https://aashtos-etap-podcast.simplecast.com/episodes/quiet-roads-ahead