Summary
Recently we proposed an extension to the traffic model of Aw, Rascle and Greenberg. The extended traffic model can be written as a hyperbolic system of balance laws and numerically reproduces the reverse λ shape of the fundamental diagram of traffic flow. In the current work we analyze the steady state solutions of the new model and their stability properties. In addition to the equilibrium flow curve the trivial steady state solutions form two additional branches in the flow-density diagram. We show that the characteristic structure excludes parts of these branches resulting in the reverse λ shape of the flow-density relation. The upper branch is metastable against the formation of synchronized flow for intermediate densities and unstable for high densities, whereas the lower branch is unstable for intermediate densities and metastable for high densities. Moreover, the model reproduces the characteristic properties of wide moving jam formation and propagation.
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References
A. Aw, M. Rascle: SIAM J. Appl. Math. 60, 916 (2000)
J.M. Greenberg: SIAM J. Appl. Math. 62, 729 (2001)
B.S. Kerner: The Physics of Traffic. (Springer, Berlin 2004)
H.K. Lee, H.-W. Lee, D. Kim: Phys. Rev. E 69, 016118 (2004)
F. Siebel, W. Mauser: SIAM J. Appl. Math. 66, 1150 (2006)
F. Siebel, W. Mauser: Phys. Rev. E 73, 066108 (2006)
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© 2007 Springer-Verlag Berlin Heidelberg
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Siebel, F., Mauser, W. (2007). Stability of Steady State Solutions in Balanced Vehicular Traffic. In: Schadschneider, A., Pöschel, T., Kühne, R., Schreckenberg, M., Wolf, D.E. (eds) Traffic and Granular Flow’05. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-47641-2_54
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DOI: https://doi.org/10.1007/978-3-540-47641-2_54
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-47640-5
Online ISBN: 978-3-540-47641-2
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