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arxiv: 0809.1265 · v1 · submitted 2008-09-08 · 🌊 nlin.AO · cond-mat.stat-mech

On a discrete optimal velocity model and its continuous and ultradiscrete relatives

classification 🌊 nlin.AO cond-mat.stat-mech
keywords modeldiscreteflowultradiscretelimitoptimaltrafficvelocity
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We propose a discrete traffic flow model with discrete time. Continuum limit of this model is equivalent to the optimal velocity model. It has also an ultradiscrete limit and a piecewise-linear type of traffic flow model is obtained. Both models show phase transition from free flow to jam in a fundamental diagram. Moreover, the ultradiscrete model includes the Fukui-Ishibashi model in a special case.

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