GTRI Researcher Colin Usher (IMAGE) Georgia Institute of Technology Caption GTRI researcher Colin Usher uses a touch-screen monitor mounted in the cab of the truck. It provides the primary operator interface to the automated road pavement marker (RPM) placement system developed by GTRI. Credit Photo by Gary Meek Usage Restrictions For Editorial Use Only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.