Aspects of IVHS architecture design

Details

• Creators:
  Varaiya, Pravin
• Subject/TRT Terms:
  • System architecture
  • Intelligent transportation systems
  • Traffic flow
  • Route guidance
  • Traffic congestion
  • Automated vehicle control
  • Spacing
  • SYSTEM ARCHITECTURE
  • INTELLIGENT VEHICLE SYSTEMS
• Resource Type:
  Proceedings
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Joint Program Office for Intelligent Transportation Systems
• Abstract:
  IVHS systems influence four kinds of decisions that drivers make during their trip. The ; corresponding tasks that IVHS systems carry out are route and flow control, congestion ; control, vehicle coordination, and spacing. A comparison of two scenarios shows how IVHS ; influence over vehicle behavior can range from minor (under a strategy limited to providing ; information and advice) to major (under full automation which preempts driver control). ; The four IVHS tasks have three differentiating features: time scale or the time available to ; carry out the task; spatial scope or the impact of executing the task on the traffic system; ; and information span or the extent of information needed to carry out the task. ; An IVHS architecture organized in a hierarchy of four layers - network, link, coordination. ; and regulation - is proposed. This hierarchy resolves in a natural way the ; three differentiating features. The architecture can accommodate a wide range of automation ; strategies from the simplest, which limits itself to providing driver information. to ; the most complex. which achieves total control of the vehicle. The architecture permits ; the incorporation of new functional capabilities over time, and encourages a decentralized ; implementation of IVHS tasks. ; An open architecture specification is urged as a means to promote rapid development ; of IVHS and to ensure the interworking of independent, subsystem implementations. It is ; also suggested that IVHS standards should be specified in a formal-mathematical language ; to simplify later problems of design validation and conformance testing of products.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/2458/dot_2458_DS1.pdf
• File Type:
  [PDF - 208.09 KB]
• Collection(s):
  ITSJPO Digital Library
• Main Document Checksum:
  urn:sha-512:11ad1ffb60c7192e5bba591ea026272059cb292e1af9024690cd8fb4cdd83d975adf560793caf0318008bd092e7b46c57be7ac03aae49b7963529e7f7b168fb4