During the past year, which was the first year of a planned three-year program, the research efforts were focused principally on the development of a physical test facility which would be employed to study control and communication problems at, and below, the sector level. These studies would be focused on the automatic control of high-speed traffic operations at small time headways. The primary activities undertaken were: (a) The implantation of both lateral and longitudinal information sources at the 6.4-km, skid-pad facility; (b) The specification of a sector-level controller which would be comprised of a commercially available microprocessor and a considerable amount of special-purpose hardware; (c) A study of automatic longitudinal control, both in the normative and emergency modes of operation; (d) The evaluation of a "flattened" helical-line information source for providing continuous position information to each controlled vehicle in a sector; and (e) A study of automatic steering with an emphasis on high-speed, lane-changing operations. The status of items (a), (c) and (d) are discussed in detail. The secondary activities included a reevaluation of a headway safety policy for automated highway operations, and the development of a methodology to determine the accident costs associated with a particular policy choice.

  • Corporate Authors:

    Ohio State University, Columbus

    Transportation Control Laboratory
    Columbus, OH  United States  43210

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Fenton, R E
    • Mayhan, R J
    • GLIMM, J
  • Publication Date: 1978-5-31

Media Info

  • Pagination: 200 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00198306
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-79- 42 Intrm Rpt., RF-784712-1
  • Contract Numbers: DOT-FH-1109257
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 29 1979 12:00AM