考虑侧向偏移的车辆跟驰行为建模与仿真

摘要/Abstract

摘要： 为了描述真实交通环境中车辆交错跟驰的现象，在全速度差模型基础上引入了视觉角与侧向偏移角的概念，采用侧向偏移角变化率作为衡量车辆横向运动的关键参数并建立了考虑侧向偏移的车辆跟驰模型。通过线性稳定性分析得到了新模型的稳定性条件。理论分析与数值仿真结果表明，改进模型能够有效地描述车辆交错跟驰行为对交通流稳定性的影响，侧向偏移会减少交通流稳定区间，更容易使得稳定车流形成时走时停交通流。上述结论对于改善交通流稳定性，分析车辆跟驰中的横向运动特性具有重要的理论与现实意义。

关键词: 交通运输系统工程, 跟驰模型, 视觉角, 侧向偏移

Abstract: In order to describe staggered car following behavior more actually, a novel car following model based on full velocity difference (FVD) model by incorporating the visual angle was proposed. The rate of change of the lateral separation angle is as a key parameter to describe the effect of lateral separation distance. The stability condition of the model was obtained by using the linear stability theory. Then the property of the model was investigated by theoretical analysis and numerical simulation. The results imply that the lateral separation makes the stability of the proposed model smaller and the stop and go traffic formed easily. The above findings have great practical significance to improve stability of traffic flow and to analyze car-following characteristics considering the lateral movement.

Key words: Transportation system engineering, Car following model, Visual angle, Lateral separation

金盛徐程. 考虑侧向偏移的车辆跟驰行为建模与仿真[J]. , 0, (): 0-0.

参考文献

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