The primary issues which were addressed were related to vehicle-infrastructure functional decomposition, performance requirements, fail-safety and criticality, communications, and self-monitoring and self-diagnosis technology. Specifically, this task had four primary objectives: (1) What new vehicle subsystems are required to meet the functional requirements of AHS, including sensors, processing, and vehicle-to-vehicle communications and vehicle-infrastructure communications. (2) What subsystems have reliability issues which can have a significant impact on AHS operation and safety. (3) Can the reliability of these subsystems be improved through new designs, use of redundancy, or application of new advances in self-monitoring technology. (4) Is it sufficient to perform subsystem checkout at start up, or will a self-monitoring self-diagnosis system offer greatly improved safety and fail-soft capability. Will additional subsystem sensors be required.
Precursor Systems Analyses of Automated Highway Systems. AHS PSA Vehicle Operations Analysis. Resource Materials
1996
124 pages
Report
Keine Angabe
Englisch
Road Transportation , Research Program Administration & Technology Transfer , Automatic highways , Risk , Automation , Research and development , Tests , Transportation planning , Vehicle control , Automatic traffic control , AHS(Automatic Highway Systems) , ITS(Intelligent Transportation Systems) , PSA(Precursor Systems Analysis)