道路隧道照明眩光评价

隧道照明眩光对照明质量有着重要的影响,眩光一方面降低障碍物的可见度,另一方面使驾驶者产生不舒适感。本文对隧道中间段照明眩光作了相应的研究,首先对公路隧道照明眩光的影响因素提出,然后通过数值计算分析了灯具光通量、配光形式与眩光值的相关性。研究得出:灯具光通量在3000~6000 lm范围内对隧道内眩光的影响非常微小;对称与非对称配光形式下的眩光值都小于45,符合标准要求;相比于逆光和对称配光,顺光照明眩光值最低,眩光控制等级可达8~9级;对三车道隧道而言,对称配光形式下两侧车道眩光值要大于中间车道,逆光配光形式与之相反。

Glare Evaluation of Highway Tunnel Lighting

The glare of tunnel lighting has an important influence on the quality of illumination.On the one hand,glare reduces visibility of obstacles,and on the other hand,it makes drivers feel uncomfortable.In this paper,the light glare in the middle section of the tunnel is studied.First,the influence factors of the lighting glare of the highway tunnel are put forward,and the correlation between the luminous flux,the form of light distribution and the glare value is analyzed by numerical calculation.The study shows that The luminous flux of lamps and lanterns in the range of 3000~6000 lm has very little effect on the glare in the tunnel;the glare values of symmetrical and asymmetrical light distribution are all less than 45,which meets the standard requirements.Compared with the counter-beam lighting and symmetrical light distribution,the glare value of the pro-beam lighting is the lowest,whose glare control level can reach 8~9.For three-lane tunnel,under the symmetrical light distribution,the glare values on both sides of the lane are larger than that in the middle lane,while the counter-beam light distribution is opposite.