公路隧道内汽车移动光源动态照明效果研究

Study on Dynamic Lighting Effect of Vehicle Lights in Road Tunnels

对汽车移动光源进行照明试验,并采用三维仿真模拟方法对汽车移动光源照明、隧道灯具照明及汽车移动光源与隧道灯具动态叠加照明工况下的隧道照明效果进行研究。结果表明:汽车移动光源较远区域的路面亮度衰减明显,汽车移动光源纵向有效照明范围为20 m,横向有效照明范围为3.75 m;在设置的照明条件下,灯具照明的右行车道中线最大亮度为1.6 cd·m^(-2),汽车移动光源照明的右行车道中线最大亮度为5.6 cd·m^(-2),汽车移动光源与灯具叠加照明的右行车道中线最大亮度为7.1 cd·m^(-2);叠加照明的行车道中线最大亮度相较汽车移动光源照明增加27%,相较灯具照明增加超过300%。

Vehicle lighting test was carried out and three-dimensional simulation was used to study and analyze the lighting effect in the tunnel under the three different conditions of vehicle lights,tunnel luminaries,as well as the combination of vehicle lights and luminaries.The results show that the luminance decreases significantly in the distance from vehicle lights,the longitudinal effective illumination range of vehicle lights is 20 m and the transverse effective illumination range is 3.75 m.When the vehicle is located in the right lane,the maximum luminance at centerline of right lane under luminaries used in this paper is 1.6 cd·m^(-2),while the maximum luminance under vehicle lights is 5.6 cd·m^(-2).The luminance at centerline of right lane under the combined effect of vehicle lights and luminaries reaches to the maximum value of 7.1 cd·m^(-2).The maximum luminance at centerline of right lane under the combined effect of vehicle lights and luminaries increase by more than 300%compared to luminaries lighting,and 27%compared to vehicle lighting.