DEVELOPMENT AND COMPARATIVE EVALUATION OF HIGH-ORDER TRAFFIC FLOW MODELS

Five high-order continuum traffic flow models are compared: Payne's original model, Papageorgiou's improved model, the semiviscous model and the viscous model, a proposed high-order model, and the simple continuum model based on the pipeline cases. The stability of the high-order models is analyzed and the shock structure investigated in all models. In addition, the importance of the proper choice of finite-difference method is addressed. For this reason, three explicit finite-difference methods for numerical implementation--the Lax method, the explicit Euler method, and the upwind scheme with flux vector splitting--are discussed. The test with hypothetical data and the comparison of numerical results with the field data suggest that high-order models implemented through the upwind method are more accurate than the simple continuum model. For congested cases, the proposed high-order model appears to be more accurate than the other high-order models for all cases tested.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 174-183
  • Monograph Title: Part 1: 1994 TRB Distinguished Lecture, Adolf D May; Part 2: Traffic flow and capacity
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00677661
  • Record Type: Publication
  • ISBN: 0309061008
  • Files: TRIS, TRB
  • Created Date: May 12 1995 12:00AM