The third and final video fo the Asphalt Pavement Principles series has just been posted to FHWA's YouTube channel. Long-Life Pavements, traditionally called Perpetual Pavements, are multi-layer pavement designs built from the bottom up, with each layer engineered to maximize pavement life. Long-Life Pavement designs provide agencies with an approach that reduces the life-cycle costs of a pavement. With this approach, asphalt roads can be built with a structure that lasts many decades with only periodic surface renewal and maintenance required, making it an ideal choice for drivers, engineers, and the traveling public. Watch this interesting and informative FHWA video now by clicking here.