高速公路隧道路段交通安全特性研究

基于高速公路隧道运行安全特性,对隧道路段定义进行改进。通过提炼交通事故特性参数对高速公路隧道路段和开放性道路的交通事故率进行对比,并对交通事故时间分布规律、空间分布规律、事故形态分布规律以及事故车型分布规律进行统计分析。研究结果表明,我国隧道路段事故率略高于开放性道路,而且隧道洞外事故率远高于洞内,隧道交通事故形态以追尾、刮擦和撞壁为主,火灾事故率极低,交通事故车型以小客车和大货车为主。

Traffic Safety Features of Expressway Tunnel Section

Based on the driving safety features of expressway tunnel,the definition of tunnel section is perfected.By means of refining the feature parameter of the traffic accident and the statistics of the various traffic accident parameters,the tunnel accident rate between the expressway and the open road is analyzed.The time distribution law,space distribution law,accident shape distribution law and the accident vehicle type distribution law are discussed.The research results indicate that the accident rate in the expressway tunnel is higher than that in the open road,that the accident rate outside the tunnel hole is higher than that inside the tunnel hole,and that the accident shape is primarily composed of rear collision,scrape collision,and impingement collision.It is confirmed that the fire accident rate is very low,and the accident vehicle type is mainly composed by car and truck.