The Asphalt Pavement Alliance (APA) has announced the release of new PerRoadXpress software for the design of Perpetual Pavements. The new low- and medium-volume road and parking lot version of the popular PerRoad pavement design program is available free.
This addition to the PerRoad software design suite supplements the full design capabilities of PerRoad 3.2. This new design package is an easy-to-use, all-on-one-screen program for designing Perpetual Pavements for low- and medium-volume roads and parking lots. PerRoadXpress allows the designer either to use defaults for traffic and soil, or to input the actual values if they are known. Granular base thicknesses from 0 to 10 inches are included. If the average yearly modulus of the asphalt pavement is known, then it can be input by the user, or if it is not known, a default value can be selected. The software quickly provides the user with a recommendation for the total thickness of asphalt pavement needed for a particular situation.
PerRoadXpress was developed in response to requests by public works officials and owners of commercial property by Auburn University’s Dr. David Timm, author of the original PerRoad program. PerRoadXpress can be downloaded for free from the Asphalt Pavement Alliance at asphaltroads.org. PerRoad 3.2, the latest version of the original software, is also available as a free download from the same Web site.
The Asphalt Pavement Alliance is a coalition of the National Asphalt Pavement Association, the Asphalt Institute, and the State Asphalt Pavement Associations. The Asphalt Pavement Alliance’s mission is to further the use and quality of hot-mix asphalt pavements. The Alliance will accomplish this through research, technology transfer, engineering, education, and innovation.