基于三维仿真的公路、铁路平行或交叉路段防眩设施自动评估  

Research on key technologies of automatic evaluation and design of road light barriers based on 3D simulation

作　　者：许阳[1] 张良涛[1] 王振刚[1] 张刘俊 吴思远 邓逸川 宋杰 XU Yang;ZHANG Liang-tao;WANG Zhen-gang;ZHANG Liu-jun;WU Si-yuan;DENG Yi-chuan;SONG Jie(China Railway Fourth Survey and Design Institute Group Co.,Ltd.,Wuhan Hubei 430063,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou Guangdong 510640,China;State Key Laboratory of Subtropical Building Science,Guangzhou Guangdong 510640,China;School of Civil Engineering,Wuhan University,Wuhan Hubei 430072,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]华南理工大学土木与交通学院,广东广州510640 [3]亚热带建筑科学国家重点实验室,广东广州510640 [4]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《图学学报》2023年第4期818-827,共10页Journal of Graphics

基　　金：广东省自然科学基金项目(2023A1515030169);广州市科技计划项目(202201010338)。

摘　　要：眩光现象导致驾驶人员短暂失明,影响驾驶员决策,增加交通事故的风险。对于铁路和公路平行或交叉的路段,铁路列车产生的眩光会对临近公路行车安全产生影响。为系统解决此问题,开发了一个用于铁路和公路平行或交叉线路上列车眩光的三维模拟和评价方法,以此分析列车眩光对于临近公路行车安全的影响及确定所需防眩设施的位置和高度。通过AutoCAD的二次开发技术将铁路、公路路段数据离散和整合,将图纸上平、立、剖面二维线路数据整合为三维数据,实现二维数据模型到三维数据模型的转化。以三维数据模型为基础,考虑列车灯光源及公路上机动车驾驶员视线的空间三维位置关系,根据眩光计算理论,对整个线路实施列车眩光的三维模拟及评价,从而实现了线路防眩设施位置和高度确定的自动化。最后,通过算例验证了本文眩光三维仿真技术及眩光自动评估方案的准确性。Glare is a serious issue that can cause momentary blindness among drivers,leading to poor decision-making and a higher risk of traffic accidents.In addition,for parallel or crossing sections of railways and highways,the glare produced by railway trains can also affect the safety of nearby road traffic.In order to address this problem systematically,a 3D simulation and evaluation method was developed for train glare on parallel or intersecting railways and highways.This method analyzed the impact of train glare on nearby road traffic safety,identifying the height and location of necessary glare reduction facilities.Firstly,the data of railway and highway sections were discretized and integrated using the secondary development technology of AutoCAD.The two-dimensional line data on the plan were then integrated into three-dimensional data,thus realizing the transformation from the two-dimensional data model to a three-dimensional data model.Based on the resulting 3D data model,the spatial position relationship between train light source and the driver’s line of sight on the highway was considered.Using the glare calculation theory,the 3D simulation and evaluation of train glare was conducted for the entire line,thereby automating the height and location of glare reduction facilities on the line.Finally,the accuracy of both the 3D simulation technology for glare and the automatic evaluation scheme was verified by numerical examples.

关 键 词：三维仿真 光屏障 眩光分析 公路、铁路平行 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]