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Two-Capacity Flow: Cellular Automata Simulations and Kinematic-Wave Models

In: Traffic and Granular Flow’05

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  • Paul Nelson

    (Texas A&M University, Department of Computer Science
    Texas A&M University, Departments of Nuclear Engineering, of Mathematics and of Civil Engineering)

Abstract

Summary A simple CA model (CA-184s2ss) is shown to reproduce, at freeway bottlenecks, elements of the observed phenomena of two-capacity flow, including both breakdown and recovery flows, and of wide moving jams. Notwithstanding that both of these phenomena are incompatible with classical kinematic-wave models (KWMs) of traffic flow, sufficiently coarsely time-aggregated CA-184s2ss simulations are shown to be approximated modestly well by the KWM, with a single suitable empirically determined capacity at the bottleneck.

Suggested Citation

  • Paul Nelson, 2007. "Two-Capacity Flow: Cellular Automata Simulations and Kinematic-Wave Models," Springer Books, in: Andreas Schadschneider & Thorsten Pöschel & Reinhart Kühne & Michael Schreckenberg & Dietrich E. Wol (ed.), Traffic and Granular Flow’05, pages 481-502, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-47641-2_45
    DOI: 10.1007/978-3-540-47641-2_45
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