基于仿真的“U-turn”交叉口流量适应性分析
发布时间：2019-06-24 15:24
【摘要】：交叉口"U-turn"组织的效率与交叉口流量分布具有紧密的联系,合适的流量分布条件可使得"U-turn"组织具有较常规四相位控制方式更高的通行效率,反之,则会凸显车辆间的交织和冲突,出现不稳定交通流状态,从而降低交叉口的通行效率,采用仿真的方法,以主路直行流量及次路左转流量为变量,在不同流量组合下,仿真"U-turn"组织,输出行程时间及通行能力指标,同时,仿真同流量条件下的常规四相位控制方案,输出对应指标,分别在三维空间和二维平面内分析两种方式下的一些临界区域,得出了"U-turn"组织的合理流量组合区域,能够为实践中可否采用"U-turn"组织的决策提供参考。
[Abstract]:The efficiency of intersection "U-turn" organization is closely related to the traffic distribution of intersection. The appropriate flow distribution conditions can make the "U-turn" organization have higher traffic efficiency than the conventional four-phase control mode. On the contrary, it will highlight the interleaving and conflict between vehicles, and the unstable traffic flow state will occur, thus reducing the traffic efficiency of the intersection and adopting the simulation method. Taking the direct flow of the main road and the left turn of the secondary road as variables, the "U-turn" organization, the output travel time and the capacity index are simulated under different traffic combinations. At the same time, the conventional four-phase control scheme under the same flow condition is simulated, and the corresponding indexes are output. some critical regions in the three-dimensional space and the two-dimensional plane are analyzed respectively, and the reasonable flow combination region of the "U-turn" organization is obtained. It can provide reference for the decision-making of "U-turn" organization in practice.
【作者单位】： 西北工业大学自动化学院;华东交通大学土建学院;
【基金】：江西省科技厅科技计划项目(编号:20123BBE50094) 铁路环境振动与噪声教育部工程研究中心项目(编号:12TM01)
【分类号】：U491
本文编号：2505168
[Abstract]:The efficiency of intersection "U-turn" organization is closely related to the traffic distribution of intersection. The appropriate flow distribution conditions can make the "U-turn" organization have higher traffic efficiency than the conventional four-phase control mode. On the contrary, it will highlight the interleaving and conflict between vehicles, and the unstable traffic flow state will occur, thus reducing the traffic efficiency of the intersection and adopting the simulation method. Taking the direct flow of the main road and the left turn of the secondary road as variables, the "U-turn" organization, the output travel time and the capacity index are simulated under different traffic combinations. At the same time, the conventional four-phase control scheme under the same flow condition is simulated, and the corresponding indexes are output. some critical regions in the three-dimensional space and the two-dimensional plane are analyzed respectively, and the reasonable flow combination region of the "U-turn" organization is obtained. It can provide reference for the decision-making of "U-turn" organization in practice.
【作者单位】： 西北工业大学自动化学院;华东交通大学土建学院;
【基金】：江西省科技厅科技计划项目(编号:20123BBE50094) 铁路环境振动与噪声教育部工程研究中心项目(编号:12TM01)
【分类号】：U491
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