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INFLUENCE OF ROAD SURFACES ON THE CALCULATION OF A TARGET VISIBILITY TAKING INTO ACCOUNT THE DIRECT AND INDIRECT LIGHTING 考虑直接照明和间接照明时 路面对目标可见度计算的影响
发布日期: 2021-09-29
街道照明确保了道路使用者的可见度和易读性。本文根据指南和道路照明标准,模拟了四个不同路面类型路段的照明装置性能。然后,根据阿德里安模型计算目标的能见度水平。接下来,将道路表面上的光反射添加到目标亮度的计算中。为此,目标前面考虑的面积以及基本曲面的数量是固定的,Q_为0- 对a=45度时获得的r表进行缩放。我们比较了每个路段在考虑和不考虑光反射的情况下获得的结果,并得出结论,道路表面的性质对目标亮度的影响可以忽略不计。然而,观察到路面对目标能见度水平的影响。
Street lighting ensures visibility and legibility for road users. In this paper, performances of the lighting installation of four road sections with different type of road surface are simulated in accordance with guidelines and road lighting standards. Then, the calculation of the visibility level of a target according to the Adrians model is included. Next, the light reflections on the road surface are added to the calculation of the target luminance. For this, the area considered in front of the target as well as the number of elementary surfaces are fixed and a Q_0-scaling of the r-table obtained for a=45 degree is performed. We compare the results obtained for each section with and without considering the light reflections and conclude that there is negligible incidence of the nature of the road surface on the target luminance. However, an effect of the road surface on the visibility level of the target is observed.
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发布单位或类别: 国际组织-国际照明委员会
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