空间通视性对高速公路隧道路段驾驶行为的影响

针对高速公路隧道路段运行环境特性,首次提出空间通视性对隧道路段驾驶行为的影响.在给出空间通视性定义和假设条件的基础上,分析空间通视性的影响要素,并从道路平曲线、竖曲线、驾驶员视觉特性三方面对隧道空间通视性临界条件进行理论计算.依据实测数据,建立基于空间通视性的高速公路隧道驾驶行为变化规律:通视型隧道驾驶行为变化过程可分为两区段,而非通视型隧道可分为三区段.并给出了典型空间通视型隧道路段运行车速变化规律图.

Effect of Spatial Visual Pattern on Driving Behaviour in Expressway Tunnel Section

According to the driving environment characteristic of the expressway tunnels,the concept of spatial visual pattern was proposed to analyze the driving behavior in tunnel section for the first time.On the basis of the definition and the assumed conditions,the influencing factors of spatial visual pattern were analyzed,and the critical conditions of tunnel spatial visual pattern were calculated from three aspects including horizontal curve,vertical curve and visual characteristic of the drivers.Based on the measured data,the driving behavior in tunnel section was different for different spatial visual patterns,the driving behavior process of the spatial visual pattern could be divided into two sections and the un-spatial visual pattern could be divided into three sections,and the operating speed process of the typical spatial visual patterns was validated.