考虑车辆随机减速延迟的交通拥堵调度仿真

发布时间：2018-06-06 14:16

本文选题：车辆随机减速延迟 + 交通拥堵　；参考：《计算机仿真》2014年07期

【摘要】：交通调度模型都以行驶状况正常前提为基础,没有充分考虑车辆随机减速引起拥堵时,司机行驶速度随机变化带来的意外突变性和延迟性。传统的调度方法以车辆速度在固定距离内是固定的观点建立模型,模型受到司机行驶速度突变的影响,存在较大的抖动和延迟,引起调度效率降低,调度误差较大。提出考虑车辆随机减速延迟因素的交通拥堵优化调度方法。建立车辆随机减速引起交通拥堵中的影响因子,获取在上述因子影响下的交通拥堵调度目标函数,同时获取调度过程中的车辆随机减速误差约束条件。对交通拥堵情况进行模拟退火操作,建立初始种群,构建对应的适应性函数,获取对应的约束条件,针对满足上述约束条件的染色体进行选择、交叉、变异、模拟退火操作,形成最优调度方案。实验结果表明,利用改进模型进行考虑车辆随机减速延迟的交通拥堵调度,能够提高车辆随机减速时车辆的调度效率。
[Abstract]:The traffic dispatch model is based on the normal condition of the driving condition, and does not fully consider the accidental abrupt and delay caused by random change of driver's driving speed when the vehicle's random deceleration causes congestion. The traditional scheduling method establishes the model with the fixed distance of the vehicle speed within the fixed distance, and the model is changed by the driver's speed change. There is a large jitter and delay, which causes the scheduling efficiency to be reduced and the scheduling error is large. A traffic congestion optimal scheduling method considering the random deceleration factor of vehicles is proposed. The influence factors of traffic congestion caused by the vehicle random deceleration are established, and the traffic congestion scheduling objective function under the influence of the factors is obtained. The simulation annealing operation of traffic congestion is carried out, the initial population is established, the corresponding adaptive function is built, and the corresponding constraints are obtained. The optimal scheduling scheme is formed for the selection, cross, variation and simulated annealing operation for the chromosomes satisfying the constraints mentioned above. The results show that the improved model can improve the efficiency of vehicle dispatching when vehicle random deceleration is applied to traffic congestion Scheduling Considering vehicle random deceleration delay.
【作者单位】：河北工业大学廊坊分校;
【基金】：河北省教育厅项目(ZD20131070)
【分类号】：U491.265;F572

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