THE DYNAMIC SCHEDULING APPROACH TO AUTOMATED VEHICLE MACROSCOPIC CONTROL. APPENDIX III TO PROJECT EES 276A

In the research reported here a new approach to network control, termed Dynamic Scheduling, is evaluated by simulation techniques. Although this approach utilizes the concept of synchronous slots, it does not employ "preprogramming" or "origin-destination slot reservations" as is common to many schemes, but rather employs a combination of path reservations through interchanges (as each one is approached) and maneuvering-space reservations (for the "next" interchange). Control tasks concerned with individual vehicles (e.g., scheduling and maneuvering) are handled at the local level, and those concerned with vehicles in the aggregate (e.g., "lane flow" distribution and "entrance flow" control) are handled at the central level. Dynamic Scheduling was evaluated by simulations of a variety of networks including directional interchanges; entrance-exit interchanges in a loop; and a twelve- interchange urban network. It was found that: flow rates through interchanges will, in general, be limited by the interactions among vehicles maneuvered on the approach lanes; both a traveler's expected total longitudinal maneuvering delay and its dispersion increase with both the level of demand on the system and the number of interchanges he traverses; and based on simulated egress flow restrictions, it appears that blockages would be effectively handled by this approach. /Author/

  • Supplemental Notes:
    • Prepared in cooperation with Ohio Department of Transportation and FHWA.
  • Corporate Authors:

    Ohio State University, Columbus

    Engineering Experiment Station, 2070 Neil Avenue
    Columbus, OH  United States  43210
  • Authors:
    • Rule, R G
  • Publication Date: 1974-9

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 270 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00126149
  • Record Type: Publication
  • Report/Paper Numbers: EES 276A-18
  • Files: TRIS
  • Created Date: Oct 18 1981 12:00AM