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Solitary wave solution to Aw-Rascle viscous model of traffic flow

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Abstract

A traveling wave solution to the Aw-Rascle traffic flow model that includes the relaxation and diffusion terms is investigated. The model can be approximated by the well-known Kortweg-de Vries (KdV) equation. A numerical simulation is conducted by the first-order accurate Lax-Friedrichs scheme, which is known for its ability to capture the entropy solution to hyperbolic conservation laws. Periodic boundary conditions are applied to simulate a lengthy propagation, where the profile of the derived KdV solution is taken as the initial condition to observe the change of the profile. The simulation shows good agreement between the approximated KdV solution and the numerical solution.

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Correspondence to Peng Zhang  (张 鹏).

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Project supported by the National Natural Science Foundation of China (Nos. 11072141 and 11272199), the National Basic Research Program of China (No. 2012CB725404), and the University Research Committee, HKU SPACE Research Fund and Faculty of Engineering Top-up Grant of the University of Hong Kong (No. 201007176059)

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Wu, Cx., Zhang, P., Wong, S.C. et al. Solitary wave solution to Aw-Rascle viscous model of traffic flow. Appl. Math. Mech.-Engl. Ed. 34, 523–528 (2013). https://doi.org/10.1007/s10483-013-1687-9

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  • DOI: https://doi.org/10.1007/s10483-013-1687-9

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Chinese Library Classification

2010 Mathematics Subject Classification

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