Skidabrasion removes material by projecting high-speed steel shot at the pavement surface. By controlling the Skidabrader power and travel rate, the method can be set to remove only rubber (such as in airport runway restoration) or substantial pavement thickness. The Skidabrader vacuums the shot and loose material from the pavement surface, recovers the shot, and cleanly disposes of the waste. The process can be accomplished at night, when traffic levels are reduced. Most importantly, Skidabrasion leaves a surface with good texture and friction, which is essential on the limestone-aggregate pavement.
Because its lower cost and its ability to create desirable pavement friction, Rapid City Area has chosen to use Skidabrasion to remove enough tining to reduce noise levels on this section of roadway. Research is needed to establish the proper level of Skidabrasion and to evaluate its short- and long-term effectiveness in reducing pavement noise and maintaining pavement friction. The research would also attempt to determine why this pavement exhibited uncharacteristically high noise levels compared to other recently placed pavements.