Even in the best of conditions, consistent slow moving, dense traffic can cause severe rutting problems, which become hazardous in rainy weather conditions. Anderson Road in the city of Calgary is a classic example, where severe rutting was a recurring problem.

The problem was solved with Lafarge DuraPhalt HM™ high performance asphalt. Developed from Stone Mastic Asphalt technology with a polymer modified asphalt binder, DuraPhalt HM is specifically engineered to counteract the enhanced levels of stress associated with heavy, low speed usage. After more than a year, the ruts have not reappeared.