基于三维全景测绘的山区高速公路视距可靠性评估  

Reliability Evaluation of Sight Distance of Mountain Expressway Based on 3D Panoramic Surveying and Mapping

作　　者：徐承明 张万磊 陈国伟 毛群龙 张韩帅 XU Chengming;ZHANG Wanlei;CHEN Guowei;MAO Qunlong;ZHANG Hanshuai(Zhejiang Expressway Construction Management Co.Ltd.,Hangzhou 310000,China;Jiangsu Zhonglu Engineering Technology Research Co.Ltd.,Nanjing 211803,China)

机构地区：[1]浙江交投高速公路建设管理有限公司,杭州310000 [2]江苏中路工程技术研究院有限公司,南京211803

出　　处：《武汉理工大学学报（交通科学与工程版）》2024年第5期863-866,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：文中基于三维全景测绘条件,采用针对不确定性问题的可靠度方法对视距进行评估.采用三维移动测绘系统采集道路环境真实三维场景,提出了一种在三维真实空间中测量ASD的方法;应用可靠性理论,讨论SSD中各变量的分布情况,采用混合高斯模型对速度分布进行了拟合,评估ASD满足SSD要求的概率.在浙江省某山区高速公路路段进行了案例研究和分析.结果表明:以视距可靠性作为评估指标时,在可靠性低于90%的路段上发生的事故数是其他路段的1.5倍,证明了所提出方法的可行性.Based on the three-dimensional panoramic surveying and mapping conditions,the line-of-sight was evaluated by the reliability method aiming at the uncertainty problem.The real three-dimensional scene of road environment was collected by three-dimensional mobile surveying and mapping system,and a method of measuring ASD in three-dimensional real space was proposed.The distribution of variables in SSD was discussed by using reliability theory,and the velocity distribution was fitted by using mixed Gaussian model to evaluate the probability that ASD meets the requirements of SSD.The case study and analysis were carried out in a mountainous expressway section in Zhejiang Province.The results show that when the line-of-sight reliability is used as the evaluation index,the number of accidents on the road section with reliability below 90%is 1.5 times that of other road sections,which proves the feasibility of the proposed method.

关 键 词：山区高速公路 三维全景测绘 三维视距 可靠性 

分 类 号：U412.36[交通运输工程—道路与铁道工程]