Dive Summary:

• A Massachusetts company has developed a vehicle-mounted ground-penetrating radar system that collects and analyzes data to give a picture of what's below the entire surface of roadways and can do it at highway speeds.
• The heart of the PAVLAYER system developed by Infrasense Inc. is software that analyzes radar data and presents it on the highway rather than back at an office.
• The Minnesota Department of Transportation is testing the system now, comparing its results with what traditional core samples show.

From the article:

Google Maps measures and maps roads, and department of transportation workers measure and map the subsurface quality of those roads. One company’s advance in computing asphalt-pavement density data on-site claims to make DOT workers’ jobs easier. ...