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Stability of Multi-Lane Traffic Flow

In: Traffic and Granular Flow’01

Author

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  • A. Sasoh

    (Tohoku University, Shock Wave Research Center, Institute of Fluid Science)

Abstract

Linear and non-linear stabilities of single-lane traffic flow have been fairly well studied; stable, metastable and unstable states can be well defined. However, stability of multi-lane flow is much less understood. In this paper, we study the effects of the relaxation time in car acceleration/deceleration equation,and of the number of lanes on the stability to unsteady disturbance. Multi-lane flow is less sensitive to the strength of the disturbance; once a weak disturbance causes a triggering lane change, that induces successive disturbances and lane changes, eventually resulting in randomly fluctuated flow. The road capacity is influenced mainly by the value of the relaxation time.

Suggested Citation

  • A. Sasoh, 2003. "Stability of Multi-Lane Traffic Flow," Springer Books, in: Minoru Fukui & Yuki Sugiyama & Michael Schreckenberg & Dietrich E. Wolf (ed.), Traffic and Granular Flow’01, pages 227-233, Springer.
    • Handle: RePEc:spr:sprchp:978-3-662-10583-2_21
    DOI: 10.1007/978-3-662-10583-2_21
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