發(fā)布時間：2019-05-30 00:25

【摘要】：快速路系統(tǒng)中,出入口匝道作為不可分割的一部分,對快速路的運行效果具有很大影響。一旦出入口匝道產(chǎn)生擁堵,將直接影響快速路的安全性。因此首先分析出入口匝道的位置設計、長度和出口匝道下游的交通狀態(tài)對快速路運行狀態(tài)的影響,建立基于出入口匝道的快速路運行狀態(tài)模型;并分析交通運行狀態(tài)與交通安全之間的聯(lián)系,建立基于擁堵程度的快速路安全性模型�；谝陨蟽蓚�模型,實現(xiàn)基于出入口匝道的快速路安全性模型;并通過模擬驗證,分析出入口匝道對快速路安全性的影響程度,最終得出結論:受出入口匝道車流匯入、匯出的產(chǎn)生延誤,將會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.
【作者單位】： 北京工業(yè)大學建筑工程學院;交通運輸部管理干部學院;
【基金】：國家社科基金青年項目(13CGL150)資助
【分類號】：U492.8
，

本文編號：2488351