The Asphalt Pavement Alliance (APA) has released Perpetual Asphalt Pavements: A Synthesis, which provides guidance for perpetual pavement design and construction. The 10-year-old coalition of asphalt industry associations released the technical document Feb. 17 during the World of Asphalt show & conference in Cincinnati.

The release coincided with the announcement of a new Web site (, as well as a marketing campaign: “America rides on us,” a nod to the material's use on the nation's roads as the most recycled material in the United States. “It's the perfect pavement for city planners as they design livable communities,” says Christie Barbee, co-chair of the APA's Advocacy Team, which authored a white paper titled America Rides on Us. Asphalt.

The white paper examines trends at the federal and state levels regarding sustainability and livable communities. It also highlights advances in several new technologies, including rubblization, warm-mix asphalt, and porous pavements.