Supplement to the AASHTO Guide for Design of Pavement Structures, Part II, Rigid Pavement Design and Rigid Pavement Joint Design, AASHTO, 1998. 8. NCHRP 1-37A Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures, Design Guide NCHRP 1-37A, TRB, 2004. 9. 23 CFR 626 : Code of Federal Regulations, Title 23, Part 626, Pavement ...