The invention discloses a highway bypass path shunting method and system in an accident scene, and the method comprises the steps: collecting a plurality of variables which affect the accident handling time, such as an accident attribute factor, a road attribute factor and an environment attribute factor, and constructing an accident duration prediction model through a random forest algorithm; constructing a microscopic simulation model under the accident condition by using the road data around the accident and the accident information; performing traffic flow dynamic loading in combination with historical OD information and the current road flow, estimating the maximum influence range of an accident, and obtaining the maximum queuing length of a sub-time window; according to the maximum queuing length under different time windows obtained through simulation, determining the starting and closing time of a path shunting strategy, carrying out accident influence range traceability analysis under different time windows, and determining shunting nodes based on a traceability analysis result; and carrying out dynamic traffic distribution based on the shunting nodes to obtain a final shunting scheme. The reasonable degree of the highway bypass path shunting scheme in the accident scene is improved, and the highway bypass path shunting scheme has high rationality.
本发明公开了一种事故场景下高速公路绕行路径分流方法及系统,收集事故属性因素、道路属性因素、环境属性因素等多种影响事故处置时间的变量,利用随机森林算法构建事故持续时间预测模型;利用事故周边的道路数据与事故信息,构建事故条件下微观仿真模型;结合历史OD信息与当前道路流量,进行交通流动态加载,估计事故最大影响范围并得到分时间窗最大排队长度;根据仿真得到的不同时间窗下最大排队长度,确定路径分流策略启动和关闭时间,开展不同时间窗下事故影响范围溯源分析,基于溯源分析结果确定分流节点;基于分流节点进行动态交通分配,得到最终分流方案。提升了事故场景下高速公路绕行路径分流方案的合理程度,使得其具有强的合理性。
Expressway bypass path shunting method and system in accident scene
一种事故场景下高速公路绕行路径分流方法及系统
2025-03-04
Patent
Electronic Resource
Chinese
Expressway traffic accident emergency induction shunting discrimination method
European Patent Office | 2021
|Expressway traffic flow detection device and shunting management method
European Patent Office | 2022
|European Patent Office | 2020
|Upstream dynamic shunting method under expressway abnormal event based on MPC
European Patent Office | 2024
|