We are researching better ways to measure, evaluate, and quantify pavement smoothness. The following are a few ways we are driving smoothness. APR recently served as a sub consultant on an ongoing project, FHWA Contract No. DTFHG1-03-R-0015 “Smoothness Criteria for Concrete Pavement.” The objectives of the study are to find what the traveling public finds objectionable relating to rough pavements, and then find ways to measure it and prevent it from occurring. APR’s primary tasks on this research contract were to instrument three vehicles and to measure the dynamic response on several sections of new or newer concrete pavement. A total of ten test sites were used in this study. The data was then compared to the perceived roughness through surveys of the traveling public on those test sections. The results were also compared to current roughness indices like the International Roughness Index. We are currently working with the Federal Aviation Administration (FAA) and Innovative Pavement Research Foundation (IPRF) on a “Design Guide for Concrete Airfield Pavement Smoothness.” We have analyzed many different pavement profilers as methods of profile analysis. We have also looked at how contractors successfully construct the smoothest pavements. Our final report, due in March 2005, will aid contractors in the methodology to construct and measure the smoothness level of their new concrete pavements.