交通信息与安全2016，Vol.34Issue(6)：60-69,10.DOI:10.3963/j.issn 1674-4861.2016.06.009
考虑三维曲面特点的中央分隔带防眩高度计算
A Method to Compute the Height of Antiglare Facilities at Median Strip Considering Features of 3D Surface
摘要
Abstract
Current methods of computing height of antiglare facilities at median strips of highways are relatively approximate and inaccurate,because the 3D features of highways are not taken into consideration.In order to obtain rational and effective height of antiglare,an innovative three-dimensional computing method is proposed in this study.Based on the hypothesis that illumination range of vehicle light is of a pyramid shape,an algorithm is established with Matlab to simulate the space illuminated by headlamp during driving.A method is proposed to obtain viewpoint coordinate sets affected by glare when a vehicle is in any position.With the principle that the highest point of one antiglare facility is just on the line which connects viewpoint and light source,anti-dazzling heights of antiglare facilities at all positions can be successively computed by Matlab.A case study shows that the heights of antiglare facilities can be directly obtained using this method with necessary input data.关键词
公路工程/中分带高度/防眩/MatlabKey words
highway engineering/height of median strip/antiglare/Matlab分类
交通工程引用本文复制引用
马羊,周昊,李渴,程建川..考虑三维曲面特点的中央分隔带防眩高度计算[J].交通信息与安全,2016,34(6):60-69,10.基金项目
国家自然基金项目(51478115)资助 （51478115）
