Cooperative Research Program TTI: 0-6839 Technical Report 0-6839-R1 Pavement Designs for the Energy Development Areas with Heavy Loads—Part I: Flexible Pavements and Part II: Rigid Pavements in cooperation with the Federal Highway Administration and the Texas Department of Transportation http://tti.tamu.edu/documents/0-6839-R1.pdf TEXAS A&M TRANSPORTATION INSTITUTE COLLEGE STATION, TEXAS