This paper describes the results of a comparative study of performance of different pavement designs in North Carolina. Testing was carried out at an instrumented test facility constructed on the US 421 Bypass near Siler City, North Carolina. The experimental stretch was about seven and a half miles long and was composed of 12 pavement section types, two of each type in two directions of traffic (having different expected traffic loads), for a total of 48 sections. Based on field measurements, such as stress, strain, and distress survey analysis, the performance of the various sections were analyzed. Subgrade stabilization was found to provide the maximum assistance to the pavement sections. Sections with asphalt concrete bases 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 was limited to the asphalt concrete layers.