多入口下穿隧道主路至地下合流区车道偏移特性  

Lateral offset characteristics from main road to underground merging area in multi-entry underpass tunnel

作　　者：焦方通 石镇玮 杜志刚[2] 郭佩佩 范东凯[1] 孙锋[1] JIAO Fangtong;SHI Zhenwei;DU Zhigang;GUO Peipei;FAN Dongkai;SUN Feng(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo Shandong 255000,China;School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan Hubei 430063,China)

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255000 [2]武汉理工大学交通与物流工程学院,湖北武汉430063

出　　处：《中国安全科学学报》2024年第12期187-194,共8页China Safety Science Journal

基　　金：国家自然科学基金青年项目资助(52302437);道路交通安全公安部重点实验室开放课题基金资助(2023ZDSYSKFKT11);山东省交通运输厅科技计划项目(2024B28)。

摘　　要：多入口下穿隧道建设速度和通车数量不断增长,入口长下坡、地下合流区等特殊行车环境导致交通事故多发。为深入剖析隧道特殊区段中车道偏移的变化特性,采用搭载惯性导航和Mobileye的试验车,在典型多入口下穿隧道开展实车自然驾驶试验。依据隧道线形和空间变化特点,将试验路段划分为隧道外部段、入口下坡段、洞口内部段、地下合流段和隧道内部段。结果表明:与隧道外部段相比,其他4个区段车辆轨迹更加复杂多变,车道偏移显著增大,高达隧道外部段的1.888~2.184倍;地下合流段、入口内部段车道偏移变化率最小,隧道中地下合流段的车道偏移离散性最大,入口下坡段的离散性最小,其标准差仅为0.111;入口下坡段和地下合流段预测区间平均宽度分别为0.2、0.24 m,因此入口下坡段和地下合流段的行车安全隐患相对其他区段更大。The construction speed and number of vehicles passing through multi-portal underpass tunnels are increasing,and special driving environments such as long downhill slopes at the portals and underground merging areas cause frequent traffic accidents.To deeply analyze the variation characteristics of lateral offset in tunnel special sections,a test vehicle equipped with inertial navigation and Mobileye was used to perform a real-car natural driving test in a typical multi-entry underpass tunnel.Based on the tunnel's alignment and spatial variation characteristics,the test section was divided into the external tunnel section,the downhill section,the internal section,the underground merging section,and the internal tunnel section.The results indicated that the vehicle trajectories in the other four sections were more complex than the external section of the tunnel,and the lateral offset increased significantly,reaching up to 1.888 to 2.184 times the external section of the tunnel.The lane offset variation rate of the underground merging section and the inner section of the entrance was the smallest.The land discreteness of the underground merging section in the tunnel was the largest,and the discreteness of the entrance downhill section was the smallest with a standard deviation of only 0.111.The average width of the predicted interval of the entrance downhill and underground merging sections were 0.2 m and 0.24 m,respectively.Therefore,the driving safety hazards of the entrance downhill and underground merging sections were higher than other sections.

关 键 词：多入口下穿隧道 地下合流区 车道偏移 隧道入口 交通安全 

分 类 号：X951[环境科学与工程—安全科学]