考虑双速度差效应的耦合映射跟驰模型

Considering two-velocity difference effect for coupled map car-following model

基于Konishi等的研究工作,提出了涉及前方两辆车车头间距的优化速度函数的耦合映射跟驰模型.采用反馈控制方法,研究了耦合映射跟驰模型中的交通拥堵控制.利用反馈控制理论,给出了头车速度发生变化时交通流保持稳定的条件,并与Konishi等得到的结果进行了比较.数值模拟结果表明,所提出的模型在经典的反馈控制方法下描述的交通拥堵现象得到了有效抑制.

Based on the pioneer work of Konishi et al,a new coupled map car-following model is presented by considering the headway distance of two successive vehicles in front.The feedback control method presented by Zhao-Gao is utilized to suppress the traffic congestion in the coupled map car-following model.According to the control theory,the condition under which the traffic jam can be suppressed is analyzed.The results are compared with that presented by Konishi et al.The simulation results show that the new model with the feedback control method presented by Zhao-Gao could suppress the traffic jam effectively.