Parallel Traffic Flow Simulation of Freeway Networks: Phase 2
1997-07
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Parallel Traffic Flow Simulation of Freeway Networks: Phase 2
Authors
Published Date
1997-07
Publisher
Center for Transportation Studies, University of Minnesota
Type
Report
Abstract
Explicit and implicit numerical methods for solving simple macroscopic traffic flow continuum models have been
studied and efficiently implemented in traffic simulation codes in the past. We have already studied and
implemented explicit methods for solving the high-order flow conservation traffic model. Implicit methods allow
much larger time step size than explicit methods, for the same accuracy. However, at each time step a nonlinear
system must be solved. We use the Newton method coupled with a linear iterative method (Orthomin). We
accelerate the convergence of Orthomin with parallel incomplete LU factorization preconditionings. We
implemented this implicit method on a 16 processor nCUBE2 parallel computer and obtained significant execution
time speedup.
Keywords
Description
Related to
Replaces
License
Collections
Funding information
Center for Transportation Studies, ITS Institute Program
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Chronopoulos, Anthony. (1997). Parallel Traffic Flow Simulation of Freeway Networks: Phase 2. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/155108.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.