The Level I model, a component of the TRAFLO macroscopic traffic simulation program designed to evaluate transportation system management strategies, is described. The Level I model is designed to explicitly treat traffic control devices, include all channelization options, and describe traffic operations at grade intersections in considerable detail. Other features include actuated signal logic, right turn on red, pedestrian interference, and source-sink flow. Automobiles, buses, carpools, and trucks are explicitly treated as individual entities. The simulation processing uses "event-based" logic, which moves these vehicles intermittently, as required, rather than at every time step (interval scanning). Thus, this model is hybrid in the sense that the entities are microscopic but the processing is macroscopic in treatment. An overview of the Level I model logic is presented, the input requirements and measures of effectiveness provided by the model are indicated, and program efficiency and validation results are discussed. (Author)

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 15-18
  • Monograph Title: Traffic flow theory, characteristics and capacity
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00334157
  • Record Type: Publication
  • ISBN: 0309031168
  • Files: TRIS, TRB
  • Created Date: Oct 28 1981 12:00AM