高速公路防眩高度确定方法

摘要

为了解决高速公路夜间行车时普遍存在的强光炫目问题，通过分析车辆前照灯、驾驶人视线和防眩板设置高度在道路横纵断面上的投影关系，构建相应的计算模型，从而提出包含前后纵坡的凹形竖曲线路段防眩高度计算方法，与基于不同高速公路设计标准和位于中线与中央分隔带两侧的2种设置情形下的直线段最小防眩高度，以及不需增加防眩高度的凹形竖曲线半径临界值查询表，可为相关施工提供借鉴。%In order to resolve the problem of glare that is ubiquitous when driving at night on expressway,the projection relationship on cross section between vehicle headlamp,driver’s line of sight and the height of anti-glare plate was analyzed ,and related calculation model was built. The calculation method of anti-glare height of concave vertical curve section including longitudinal slope was proposed.Minimum anti-glare height for straight line segments based on different highway design standards and two settings on both sides of the center line and center divider and look-up table for critical value of the radius of concave vertical curve without increasing of anti-glare height,provide reference for similar projects.