This paper describes the results of a comparative study of performanceof different pavement designs in North Carolina. Testing was carriedout at an instrumented test facility constructed on the US 421Bypass near Siler City, North Carolina. The experimental stretchwas about seven and a half miles long and was composed of 12 pavementsection types, two of each type in two directions of traffic (havingdifferent expected traffic loads), for a total of 48 sections.Based on field measurements, such as stress, strain, and distresssurvey analysis, the performance of the various sections wereanalyzed. Subgrade stabilization was found to provide the maximumassistance to the pavement sections. Sections with asphalt concretebases performed better than sections with aggregate base courses.Cement- treated base course sections performed the worst. Also,in this study, it was noticed that almost all the rutting waslimited to the asphalt concrete layers.