Phased implementation of advanced lateral guidance systems in high-occupancy-vehicle lanes with exclusive right-of-way, or transitways, is described. The three incremental systems are steering assistance information systems, partially automated lane-keeping systems, and fully automated lateral control systems. Capabilities, functional requirements, system structure, and components for these systems are presented. Experiments and tests conducted at the University of California's PATH program indicate that the discrete magnetic roadway reference system appears to be a possible technology for applying all three incremental systems in transitways. Potential safety and capacity benefits of the three incremental systems in transitways are quantified. (A)
Samenvatting