A modified two-dimensional triangular lattice model under honk environment

Cong Zhai and Weitiao Wu
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Cong Zhai: School of Transportation and Civil Engineering and Architecture, Foshan University, Foshan 528000, Guangdong, P. R. China
Weitiao Wu: #x2020;School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, Guangdong, P. R. China

International Journal of Modern Physics C (IJMPC), 2020, vol. 31, issue 06, 1-16

Abstract: The honk effect is not uncommon in the real traffic and may exert great influence on the stability of traffic flow. As opposed to the linear description of the traditional one-dimensional lattice hydrodynamic model, the high-dimensional lattice hydrodynamic model is a gridded analysis of the real traffic environment, which is a generalized form of the one-dimensional lattice model. Meanwhile, the high-dimensional traffic flow exposed to the open-ended environment is more likely to be affected by the honk effect. In this paper, we propose an extension of two-dimensional triangular lattice hydrodynamic model under honk environment. The stability condition is obtained via the linear stability analysis, which shows that the stability region in the phase diagram can be effectively enlarged under the honk effect. Modified Korteweg–de Vries equations are derived through the nonlinear stability analysis method. The kink–antikink solitary wave solution is obtained by solving the equation, which can be used to describe the propagation characteristics of density waves near the critical point. Finally, the simulation example verifies the correctness of the above theoretical analysis.

Keywords: Honk effect; triangular lattice; stability; the mKdV equation; Kink–antikink soliton wave (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (2)

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DOI: 10.1142/S0129183120500898

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