城市快速路多匝道中事故协调控制仿真
发布时间：2018-07-31 19:48
【摘要】：交通事故是引起城市快速路拥堵的主要原因之一,多匝道协调控制作为连续交通流道路管理控制的主要策略,现有研究面向一般管控,不涉及交通事故。在STNS模型的基础上,建立由多匝道和主线组成的城市快速路协调控制元胞自动机模型,对事故点上游实施不同匝道控制信号策略的交通流特性进行了仿真,分析不同需求下分别采用不同的信号控制方式对道路交通流的影响。仿真结果表明,多匝道协调控制作为管理的基本手段,只有针对不同需求和交通状态采取不同的控制信号施加策略,才可最大限度地减轻由于事故所造成的拥堵影响,从而实现提高道路流量的目的。
[Abstract]:Traffic accident is one of the main causes of urban expressway congestion. The coordinated control of multi-ramp as the main strategy of continuous traffic flow road management control, the existing research is oriented to general control, does not involve traffic accidents. Based on the STNS model, the cellular automata model of coordinated urban expressway control is established, which consists of multiple ramps and main lines, and the traffic flow characteristics of different ramp control signal strategies in the upper reaches of the accident point are simulated. The influence of different signal control methods on road traffic flow is analyzed. The simulation results show that as the basic means of management, the multi-ramp coordinated control can minimize the congestion caused by the accident only by adopting different control signals according to different needs and traffic conditions. In order to achieve the purpose of increasing road flow.
【作者单位】： 河北工业大学土木与交通学院;
【基金】：国家自然科学基金项目(50478088) 河北省自然科学基金项目(E2015202266)
【分类号】：U491
[Abstract]:Traffic accident is one of the main causes of urban expressway congestion. The coordinated control of multi-ramp as the main strategy of continuous traffic flow road management control, the existing research is oriented to general control, does not involve traffic accidents. Based on the STNS model, the cellular automata model of coordinated urban expressway control is established, which consists of multiple ramps and main lines, and the traffic flow characteristics of different ramp control signal strategies in the upper reaches of the accident point are simulated. The influence of different signal control methods on road traffic flow is analyzed. The simulation results show that as the basic means of management, the multi-ramp coordinated control can minimize the congestion caused by the accident only by adopting different control signals according to different needs and traffic conditions. In order to achieve the purpose of increasing road flow.
【作者单位】： 河北工业大学土木与交通学院;
【基金】：国家自然科学基金项目(50478088) 河北省自然科学基金项目(E2015202266)
【分类号】：U491
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