Jet Propulsion Laboratory, California Institute of Technology ; prepared for U.S. Department of Transportation, Urban Mass Transportation Administration, Office of Rail and Construction Technology
Office of Technology Assessment ; prepared at the request of the House Committee on Appropriations, Transportation Subcommittee : prepared under contract OTA C11, Economics & Science Planning, Inc
Wyle Laboratories, Scientific Services & Systems Group, Colorado Springs Division ; prepared for U.S. Department of Transportation, Federal Railroad Administration, Office of Research and Development