眩光是影响高速公路夜间行车交通安全的重要因素.为了对不同线形路段上的防眩板高度进行合理的设置,分析了不同线形条件与防眩板高度的关系.考虑路线线形、车道组合、中央分隔带宽度等参数,建立了平面线形和凹形竖曲线的防眩板高度计算模型,得出了不同竖曲线半经及坡度差条件下的防眩板高度变化范围.最后结合理论及数据,对实际工程进行了分析,计算出了不同线形路段上防眩板高度的实际需求.%Glare is an important factor affecting the traffic safety of the expressway at night.In order to set the height of the anti-glare plate on different linear sections,the relationship between different linear conditions and height of anti-glare plate is analyzed.The parameters such as the line shape,the combination of lane and medial divider width are considered.The anti-glare plate height calculation models of plane linear curve and concave vertical curve are established,and the range of anti-glare plate height in the different linear conditions and the difference of slope is obtained.Finally,based on the theory and data,the actual project is analyzed.The actual demand of anti-glare plate height on different linear sections of expressway is calculated.
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