基于视认距离的隧道入口段亮度折减系数研究  

Research on Brightness Reduction Coefficient of Tunnel Threshold Zone Based on Visual Recognition Distance

作　　者：张智华 宋含玉 杨轸[2] ZHANG Zhihua;SONG Hanyu;YANG Zhen

机构地区：[1]浙江交工宏途交通建设有限公司,浙江杭州310051 [2]同济大学道路与交通工程教育部重点实验室,上海201804 [3]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《上海公路》2024年第2期200-206,I0016,共8页Shanghai Highways

基　　金：浙江交投集团科研项目(202107);国家自然科学基金资助项目(52372336)。

摘　　要：为保障隧道入口段的行车安全,从驾驶员视认特性出发,定量研究被试者视认距离和亮度折减系数、运行速度、障碍物位置之间的关系。被试者在不同条件下进行隧道实车试验,采用障碍物的视认距离作为隧道入口段安全性指标,建立两种亮度环境下的被试者视认距离与亮度折减系数、运行速度、障碍物位置之间的回归模型。以入口段最小视认距离大于相应车速下的安全停车视距为条件,计算得到安全的亮度折减系数阈值,结果高于我国现行规范的参考值。该研究方法和结论对高速公路隧道入口段的照明设计具有参考价值。In order to ensure the driving safety of the tunnel threshold zone,the relationship between the visual recognition distance and the brightness reduction coefficient,driving speed and the obstacle position was quantitatively studied based on the driver's visual recognition characteristics.The participants carried out the visual recognition test under different conditions,using the visual recognition distance of obstacles as the safety indicator of the tunnel threshold zone.The regression model between visual recognition distance and brightness reduction coefficient,driving speed and obstacle position were established under two types oflighting environments.The safe reduction coefficient threshold is calculated when the minimum visual recognition distance at the entrance is greater than the safe stopping distance at the corresponding speed and the result is higher than the reference value of the current standard specification in China.The research methods and conclusions of this article have reference value for the lighting design of the expressway tunnel threshold zone.

关 键 词：隧道入口段 视认距离 亮度折减系数 障碍物位置 

分 类 号：U453.1[建筑科学—桥梁与隧道工程]