In this study, the research efforts were directed toward the development of pavement condition evaluation techniques and analysis procedures for flexible and rigid overlay pavement design. This investigation also included a detailed field evaluation of an experimental portland cement concrete pavement and the analysis of deflection responses of various test sites. A stepwise regression analysis was carried out to evaluate the relative significance of various design and construction variables on the pavement deflection under load. Various techniques recommended for pavement condition evaluation of pavement structures is reviewed and the Lin-Majidzadeh investigation of dimensional analysis using the pi term concept is presented.