Stability of Multi-Lane Traffic Flow

A. Sasoh
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A. Sasoh: Tohoku University, Shock Wave Research Center, Institute of Fluid Science

A chapter in Traffic and Granular Flow’01, 2003, pp 227-233 from Springer

Abstract: 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.

Keywords: Shock Wave; Traffic Flow; Lane Change; Single Lane; Compression Shock Wave (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-662-10583-2_21

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DOI: 10.1007/978-3-662-10583-2_21

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