The effects of dimmable road lighting: A comparison of measured and perceived visibility

被引：19
作者：
Chenani, Sanaz Bozorg [1 ]
Maksimainen, Mikko [2 ]
Tetri, Eino [2 ]
Kosonen, Iisakki [1 ]
Luttinen, Tapio [1 ]
机构：
[1] Aalto Univ, Dept Built Environm, Espoo, Finland
[2] Aalto Univ, Dept Elect Engn & Automat, Espoo, Finland
来源：
TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR | 2016年 / 43卷
关键词：
Night driving; Visibility; Road lighting intensities; Car headlights; Luminance contrast; LEVEL;
D O I：
10.1016/j.trf.2016.10.012
中图分类号：
B849 [应用心理学];
学科分类号：
040203 ;
摘要：
By dimming road lighting, energy can be conserved without compromising traffic safety. This paper presents a study carried out on the effect of different lighting levels from road luminaires on drivers' visual performance on a low traffic urban road. The small uniform target was used to evaluate the visibility performance of the drivers. The results obtained from subjective graded visibility were compared with contrast and the Adrian model. Results indicated a strong correlation between subjective graded visibility and contrast (R-2 = 0.94) and a positive correlation between subjective graded visibility and the Adrian model (R-2 = 0.88). Target's location in relation to road luminaires had a considerable effect on its visibility. However, visibility is not a monotonic function of road lighting level. In the absence of glare from an oncoming car, 49% (3557 Im) of road lighting intensity provided better contrast and mean visibility than 100% (7252 lm) and 71% (5179 Im) of road lighting intensities. The glare from oncoming cars reduced visibility. However, no statistically significant effect of road lighting level on visibility under glare could be found. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：141 / 156
页数：16
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