An extended car-following model considering driver’s desire for smooth driving on the curved road
An extended car-following model considering driver’s desire for smooth driving on the curved road
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DOI：
10.1016/j.physa.2019.121426
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发表时间：
2019-08
期刊：
影响因子：
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通讯作者：
Yuqing Sun;H. Ge;R. Cheng
中科院分区：
文献类型：
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作者：
Yuqing Sun;H. Ge;R. Cheng
在真实的交通中，许多驾驶员都希望通过平稳驾驶来降低油耗。本文提出了一种考虑驾驶员对弯道平稳行驶要求的扩展跟驰模型。对平稳驾驶的期望可以被认为是包括稳定速度与历史速度之间的速度差的控制信号。利用控制理论得到了系统的稳定性条件，并利用非线性分析方法导出了修正的Korteweg-de弗里斯（mKdV）方程。通过数值模拟，分析了控制信号、摩擦系数和弯道半径对弯道交通流的影响。结果表明，控制信号对改善交通流稳定性有积极作用，而稳定性随其他两个参数的增大而降低。
In real traffic, many driver’s desire to lower the fuel consumption by driving smoothly. In this paper, an extended car-following model considering the driver’s desire for smooth driving on a curved road is proposed. The desire for smooth driving can be considered as a control signal including the velocity difference between the steady and history velocity. The stability conditions are obtained by the control theory, and the modified Korteweg–de Vries (mKdV) equation is derived via the non-linear analysis method. The numerical simulations are carried out to analyze the control signal, the friction coefficient and radius of curved road effects on traffic flow. The results show that the control signal has a positive effect on improving traffic flow stability, while the stability decreases with the increase of the two other parameters.