Cracking and durability issues of asphalt pavements have been primary concerns of departments of transportation the last two decades. Several modes of asphalt pavement cracking exist—fatigue, top-down, reflective, and thermal—and all are influenced by thermal loading, traffic loading, or a combination of both. NCHRP Web-Only Document 389: Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures , from TRB’s National Cooperative Highway Research Program, documents existing field va…