Asymptotic Dynamics of Self-driven Vehicles in a Closed Boundary

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52871

Title:	Asymptotic Dynamics of Self-driven Vehicles in a Closed Boundary
Authors:	Lee,CL;Huang,CL
Contributors:	物理學系
Keywords:	TRAFFIC FLOW;MODEL;STATES
Date:	2011
Issue Date:	2012-06-11 10:47:50 (UTC+8)
Publisher:	國立中央大學
Abstract:	We study the asymptotic dynamics of self-driven vehicles in a loop using a car-following model with the consideration of volume exclusions. In particular, we derive the dynamical steady states for the single-cluster case and obtain the corresponding fundamental diagrams, exhibiting two branches representative of entering and leaving the jam, respectively. By simulations we find that the speed average over all vehicles eventually reaches the same value, regardless of final clustering states. The autocorrelation functions for overall speed average and single-vehicle speed are studied, each revealing a unique time scale. We also discuss the role of noises in vehicular accelerations. Based on our observations we give trial definitions about the degree of chaoticity for general self-driven many-body systems.
Relation:	JOURNAL OF STATISTICAL PHYSICS
Appears in Collections:	[Department of Physics] journal & Dissertation

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