出入口匝道对快速路安全性的影响
发布时间：2019-05-30 00:25
【摘要】：快速路系统中,出入口匝道作为不可分割的一部分,对快速路的运行效果具有很大影响。一旦出入口匝道产生拥堵,将直接影响快速路的安全性。因此首先分析出入口匝道的位置设计、长度和出口匝道下游的交通状态对快速路运行状态的影响,建立基于出入口匝道的快速路运行状态模型;并分析交通运行状态与交通安全之间的联系,建立基于拥堵程度的快速路安全性模型。基于以上两个模型,实现基于出入口匝道的快速路安全性模型;并通过模拟验证,分析出入口匝道对快速路安全性的影响程度,最终得出结论:受出入口匝道车流汇入、汇出的产生延误,将会大大降低快速路的安全性。
[Abstract]:In the expressway system, the entrance and exit ramp, as an inseparable part, has a great influence on the operation effect of the expressway. Once the entrance and exit ramp is congested, it will directly affect the safety of the expressway. Therefore, firstly, the position design of the entrance and exit ramp, the influence of the length and the traffic state of the downstream of the exit ramp on the operation state of the expressway are analyzed, and the operation state model of the expressway based on the entrance and exit ramp is established. The relationship between traffic operation state and traffic safety is analyzed, and the safety model of expressway based on congestion degree is established. Based on the above two models, the security model of expressway based on entrance and exit ramp is realized. Through the simulation verification, the influence degree of the entrance and exit ramp on the safety of the expressway is analyzed, and finally it is concluded that the safety of the expressway will be greatly reduced by the delay of the entrance and exit traffic flow.
【作者单位】： 北京工业大学建筑工程学院;交通运输部管理干部学院;
【基金】：国家社科基金青年项目(13CGL150)资助
【分类号】：U492.8
，
本文编号：2488351
[Abstract]:In the expressway system, the entrance and exit ramp, as an inseparable part, has a great influence on the operation effect of the expressway. Once the entrance and exit ramp is congested, it will directly affect the safety of the expressway. Therefore, firstly, the position design of the entrance and exit ramp, the influence of the length and the traffic state of the downstream of the exit ramp on the operation state of the expressway are analyzed, and the operation state model of the expressway based on the entrance and exit ramp is established. The relationship between traffic operation state and traffic safety is analyzed, and the safety model of expressway based on congestion degree is established. Based on the above two models, the security model of expressway based on entrance and exit ramp is realized. Through the simulation verification, the influence degree of the entrance and exit ramp on the safety of the expressway is analyzed, and finally it is concluded that the safety of the expressway will be greatly reduced by the delay of the entrance and exit traffic flow.
【作者单位】： 北京工业大学建筑工程学院;交通运输部管理干部学院;
【基金】：国家社科基金青年项目(13CGL150)资助
【分类号】：U492.8
，
本文编号：2488351
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