Online consistency checking and origin-destination demand updating

Recursive approaches with real-time dynamic traffic assignment operator

Xuesong Zhou, Hani S. Mahmassani

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

To maintain an internally consistent representation with actual traffic conditions, this paper presents an origin-destination (O-D) demand consistency-checking and updating model for online dynamic traffic assignment operation. Both predictive and reactive approaches are proposed to minimize the deviations between simulated states and real-world observations and O-D demand adjustment magnitude. The two objectives are combined into a weighted linear quadratic function to construct a guaranteed overdetermined optimization problem. Alternative recursive solution algorithms are presented to design an efficient feedback controller that regulates the demand input for the real-time dynamic traffic assignment simulator. The proposed model is tested with field data from the Irvine test bed network.

Original languageEnglish (US)
Pages (from-to)218-226
Number of pages9
JournalTransportation Research Record
Issue number1923
StatePublished - 2005
Externally publishedYes

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Simulators
Feedback
Controllers

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

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