Purpose

The purpose of this paper is to explore how curved road and lane-changing rates affect the stability of traffic flow.

Design/methodology/approach

An extended two-lane lattice hydrodynamic model on a curved road accounting for the empirical lane-changing rate is presented. The linear analysis of the new model is discussed, the stability condition and the neutral stability condition are obtained. Also, the mKdV equation and its solution are proposed through nonlinear analysis, which discusses the stability of the extended model in the unstable region. Furthermore, the results of theoretical analysis are verified by numerical simulation.

Findings

The empirical lane-changing rate on a curved road is an important factor, which can alleviate traffic congestion.

Research limitations/implications

This paper does not take into account the factors such as slope, the drivers’ characters and so on in the actual traffic, which will have more or less influence on the stability of traffic flow, so there is still a certain gap with the real traffic environment.

Originality/value

The curved road and empirical lane-changing rate are researched simultaneously in a two-lane lattice hydrodynamic models in this paper. The improved model can better reflect the actual traffic, which can also provide a theoretical reference for the actual traffic governance.

中文翻译：

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考虑经验换道率的弯曲道路上新的双车道格子水动力模型

目的

本文的目的是探讨弯道和换道率如何影响交通流的稳定性。

设计/方法/方法

提出了考虑经验换道率的弯曲道路上的扩展双车道格子流体动力学模型。讨论了新模型的线性分析，得到了稳定条件和中性稳定条件。同时，通过非线性分析提出了mKdV方程及其解，讨论了扩展模型在不稳定区域的稳定性。此外，通过数值模拟验证了理论分析的结果。

发现

弯曲道路上的经验换道率是缓解交通拥堵的重要因素。

研究限制/影响

本文未考虑实际交通中的坡度、驾驶员性格等因素，对交通流的稳定性或多或少会产生影响，因此与实际交通情况仍有一定差距。环境。

原创性/价值

本文在双车道格子水动力模型中同时研究了弯道和经验换道率。改进后的模型能更好地反映实际交通情况，也可为实际交通治理提供理论参考。