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中文摘要：
通过引入新的流量转移函数，改进了两车道交通流格子模型，克服了现有模型隐含的车辆向后运动缺陷，推导了模型的线性稳定性条件。数值模拟结果显示，对于轻度车流扰动，改进的模型可以满意地描述车辆换道过程和趋势。
英文摘要：
An improved two-lane traffic flow lattice model is proposed. The model introduces a new function to govern the flow shift between two lanes, and then eliminates the flaws of vehicle backward movement which may appear in existing lattice models. The sufficient and necessary conditions for keeping the model＇ s linear stability are derived. Numerical simulations which correctly reproduce the lane changing behavior induced by small disturbances are presented.
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