The Morgantown system, more correctly described as a Group Rapid Transit (GRT) type of Automated Guideway Transit system (AGT), has completed 110 million passenger-miles without serious injury. According to the U.S. Department of Transportation, AGT systems as a group have higher injury rates than any other form of rail-based transit (subway, metro, light rail, or commuter rail) though still much better than ordinary buses or cars. More recent research by the British company ULTra PRT reported that AGT systems have a better safety than more conventional, non-automated modes.