I am not an expert, but a quick Google search suggests that the following textbook is fairly common in pavement design courses in North American universities:
"Pavement Analysis and Design," by Yang Huang, Prentice Hall
The definitive "bible" of pavement design has long been Yoder and Witczak. Huang's book is also very good. As noted above, the Corp of Engineers has some excellent manuals. They also have software for analysis.