TRAFFIC FLOW SIMULATION THROUGH PARALLEL PROCESSING. FINAL RESEARCH REPORT

Explicit numerical methods for solving macroscopic traffic flow continuum models have been studied and efficiently implemented in traffic simulation codes. We studied and implemented implicit numerical methods for solving the flow conservation traffic model. We then wrote an experimental code in C simulating a freeway (un)congested pipeline and freeway entry/exit traffic flow. Tests with real data collected from the I-35 W freeway in Minneapolis were conducted on a workstation computer. The implicit methods gave the same (and in some cases better) accuracy as the Lax method. The implicit methods were (more than twice) faster than the Lax method. We also implemented the Lax method on a parallel machine and obtained significant execution time reduction.

• Corporate Authors:

  University of Minnesota, Minneapolis

  Center for Transportation Studies, 511 Washington Avenue, SE
  Minneapolis, MN  United States  55455-0375
• Authors:
  • Chronopolous, A
  • Michalopoulos, P
• Publication Date: 1991-9-26

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Accuracy; Freeways; Highway traffic; Numerical analysis; Productivity; Traffic simulation
• Uncontrolled Terms: Time savings
• Old TRIS Terms: Freeway traffic
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00666208
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 8 1994 12:00AM