搜索结果: 1-1 共查到“交通运输工程 threshold”相关记录1条 . 查询时间(0.213 秒)
Parameters Affecting the Determination of the Tunnel Threshold-Zone Luminance
Threshold-zone luminance Visual ability Duration time Perception probability Safe stopping
2009/10/14
In order to determine the level of the tunnel threshold-zone luminance, as series of visual experiments were conducted using a tunnel entrance simulator. For the experiments 110 observers were used. T...