MnROAD Automated Laser Profile System (ALPS)

This paper is a review of development of the Automated Laser Profile System (ALPS) designed for use at the Minnesota Road Research Project (MnROAD). The initial development was designed to replace the six-foot straight edge rutting measurements conducted on the hot mix asphalt test cells for both the mainline and low volume road (LVR). This paper discusses not only the development of the equipment but also covers other possible uses of this equipment along with an initial comparison of the ALPS data compared to the six foot straight edge measurements at MnROAD.