基于虚拟现实技术的高速公路安全设施

依托于在建西汉高速公路秦岭北麓路段施工图和现场勘查资料，在对研究路段运行车速预测的基础上，采用虚拟现实技术对道路、隧道和桥梁等进行安全性评价，从而发现西汉高速公路秦岭北麓路段设计过程中存在的行车安全性问题．然后设计出包括主动控速设施和配套标志的主动安全控制系统方案，采用虚拟现实技术对公路安全设施建立虚拟模型并应用于虚拟的高速公路模型中，通过虚拟试验优化高速公路安全设施设计方案．

Expressway safety facilities based on virtual reality technology

In order to introduce expressway safety facilities,the method about virtual reality technology is put forward.According to the shop drawing and spot statistical data of the northern road of Qinglin on Xihan expressway,the vehicle speed of the sections of the expressway is forecasted and the safety probability on roads,tunnels and bridges is assessed through virtual simulation,so as to find the operational safety problems in designing phase of the northern road of Qinglin on Xihan expressway.Therefore,the active safety control system of Xihan expressway including active speed control facility and some signs are designed.Then,the virtual simulation model of safety ensuring engineering is estabished using virtual reality technology and applied to virtual expressway mode.Finally,the designing project of safety facilities is optimized using virtual test.