道路交织路段交通流优化控制仿真研究

发布时间：2018-02-26 06:15

本文关键词： 混合交通流复杂交织区社会力模型元胞自动机模型交通流仿真　出处：《计算机仿真》2017年05期 　论文类型：期刊论文

【摘要】：交通工具多样、混行、交织演化成为道路交织路段交通安全问题的主要诱因和道路通行效率下降的瓶颈。传统的交织路段交通流优化控制偏向宏观控制,较少依托微观仿真模型,并且已有的微观仿真模型对于反映交织路段复杂的非线性关系存在一定差距。因此,建立高准确度的道路交织路段交通流微观仿真模型是进行交通流优化控制、保证交通安全的基础。综合考虑社会力和元胞自动机的优缺点,建立一个非机动车和行人需要横穿马路的多交通方式高密度交织路段的混合交通流模型,以中学门口道路区域放学期间交通流为例,对交织区的多状态交通流进行仿真,提出交通组织方案,并对不同交通组织方案下道路实际通行能力和平均过马路时间的影响进行实验分析。结果表明针对高密度混合交织路段的交通组织优化具有较好的适用性,并对不同交通需求施加不同策略,可保证交通安全、抑制交通拥堵从而达到提高道路通行效率目的。
[Abstract]:The traffic safety problems of intertwined sections of roads are mainly caused by various, mixed and interlaced vehicles, and the bottleneck of the decline of road traffic efficiency. The traditional optimal control of traffic flow in intertwined sections is inclined to macro control. There is less reliance on micro simulation model, and the existing micro simulation model has a certain gap to reflect the complex nonlinear relationship of interleaved sections. The establishment of a high-accuracy microscopic simulation model of traffic flow in intertwined road sections is the basis for optimal control of traffic flow and ensuring traffic safety. The advantages and disadvantages of social forces and cellular automata are considered synthetically. In this paper, a mixed traffic flow model of high density intertwined road with non-motorized vehicles and pedestrians crossing the road is established. Taking the traffic flow in the middle school entrance road area as an example, the multi-state traffic flow in the interlaced area is simulated. The traffic organization scheme is put forward, and the influence of actual traffic capacity and average road crossing time under different traffic organization schemes is analyzed. The results show that the traffic organization optimization for high density mixed interlaced road sections is more suitable. Applying different strategies to different traffic demands can ensure traffic safety and restrain traffic congestion so as to improve road traffic efficiency.
【作者单位】：河北工业大学土木与交通学院;
【基金】：国家自然科学基金(50478088) 河北省自然科学基金(E2015202266)
【分类号】：U491

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