基于动态信号配时的非线性规划模型

发布时间：2018-02-13 05:10

本文关键词： 交通工程动态信号配时非线性规划模型周期时长绿信比　出处：《公路交通科技》2014年08期 　论文类型：期刊论文

【摘要】：为提高整个路网的通行效用,根据周期时长、相位绿信比与机动车延误特征,建立周期波动动态信号配时的非线性规划模型。信号控制系统根据路网中各路段机动车的流量特征,进行动态调整信号周期时长和各相位绿信比的最优配置,从而合理分配各进口车道的通行权。结果表明:运用动态信号配时法和固定信号配时法交通分配的结果基本一致,运用动态信号配时法与固定信号配时法相比,动态信号配时法使机动车在十字交叉口上效用提高10%左右,在T型交叉口上效用提高30%左右,较好地适应各种交通状态的变化。在非机动车交通量较小的交叉口,动态信号配时有利于非机动车通行效用的提高;而在交通量较大的交叉口上,动态信号配时对非机动车的通行效用有较小量的波动。
[Abstract]:In order to improve the traffic efficiency of the whole road network, according to the cycle length, phase green signal ratio and vehicle delay characteristics, The nonlinear programming model of periodic fluctuation dynamic signal timing is established. The signal control system dynamically adjusts the optimal allocation of signal cycle time and phase green signal ratio according to the flow characteristics of motor vehicles in each section of the road network. The results show that the traffic allocation results of the dynamic signal timing method and the fixed signal timing method are basically the same, and the dynamic signal timing method is compared with the fixed signal timing method. The dynamic signal timing method can increase the utility of motor vehicles at cross intersection by about 10% and T type intersections by about 30%, which can adapt to the changes of various traffic conditions. The dynamic signal timing is beneficial to the improvement of non-motor vehicle traffic utility, while at the intersection with large traffic volume, the dynamic signal timing has a small fluctuation to the non-motor vehicle traffic utility.
【作者单位】：南昌航空大学数学与信息科学学院;
【基金】：国家自然科学基金项目(51368046,71161005) 江西省教育厅科学技术研究项目(GJJ11518)
【分类号】：U491.54

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