Automated ground transport systems: Some observed materials problems

One promising partial approach to many of our anticipated future transportation problems is the automation of various facets of ground transportation. This could include automated captive-vehicle systems for central-business-district circulation, dual-mode vehicle systems for urban area use, and intercity automated highways. Certain control functions are critical in such systems and the development of new technology will be required for their successful implementation. The functions include network control and both the automatic longitudinal and lateral control of individual vehicles. Current component developments, which are directed toward such functions will be described, together with the results of roadway testing. Several problem areas, which are related to the electrical properties of conventional construction materials, are defined together with preferred operating environments for electrical components and materials.