Asphalt Pavement Magazine - July/August 2015 - (Page 16)

Roads The APA Honors Seven DOTs for Long-Life Asphalt Pavements By Mary Lou Jay The Perpetual Pavement Awards go to roadways that have stood the test of time. 16 * View past issues online at B alancing changing traffic loads and patterns over time with limited budgets is always difficult for a road owner, but well-built asphalt pavements have proven they can stand the test of time with only periodic resurfacing. Each year the Asphalt Pavement Alliance (APA) honors long-life asphalt pavements with the Perpetual Pavement Award. For 2014, seven pavements were recognized for their years of performance. Since 2001, the APA's Perpetual Pavement Award program has recognized 100 long-life asphalt pavements across North America. The winning pavements range in age from 35 years to 75 years, and the average age was 44 years at the time the award was won. Over decades of use, with only periodic surface maintenance, these roads have resisted the development of cracks, ruts and similar structural problems thanks to their outstanding original design. All of them were at least 35 years old at the time of the award and had never experienced a structural failure. They also cannot have an average interval between resurfacings of less than 12 years. Engineers at the National Center for Asphalt Technology (NCAT) evaluate the nominations for the Perpetual Pavement Award and validate the winners. Although most of these award winners were not built with specific Perpetual Pavement designs, their original designers and builders were able to ensure a high level of drivability, as well as value, for the public from these roads.

Table of Contents for the Digital Edition of Asphalt Pavement Magazine - July/August 2015

President’s Perspective
Industry News
Roads Built to Last
Intelligent Compaction Today
Rejuvenators: Bringing Life Back to Aging Asphalt Binder
Improving the Longevity of Porous Friction Course
Good Roads, Healthy America
NAPA and the Industry Care
Index of Advertisers/

Asphalt Pavement Magazine - July/August 2015