Chongqing Jiangbei Guanyinqiao of Tunnel Lighting

Tunnel is a closed space, natural light can not light them, in order to ensure the continuity of driving and vehicle safety of human life, even during the day throughout the internal need of artificial lighting, tunnel lighting is an integral part of the tunnel construction.
Tunnel lighting section 5:
1, the introduction of section: to eliminate the "black hole"phenomenon, so the driver canidentify the obstacles in the exit of the hole; in the day, for example, assume that the tunnel mouth environment brightness 4000cd/m2, speed 80KM / H, is introduced to meet the minimum requirements of paragraph The length and brightness of 40 meter sand 80cd/m2.
2, adapted section: enter the tunnel, the driver can adapt quickly and eliminate the"black hole" phenomenon; according to the above conditions, to adapt the length and brightness were 40 m and 80 ~ 46cd/m2.
3, transition: the driver getting used to the tunnel interior lighting; according to the above conditions, the length of transition section and brightness were 40 m and 40 ~ 4.5cd / m.
4 basic sections: basic lighting inside the tunnel.
5, the exit section: During the day, so the driver can gradually adapt to the exit of the light, eliminating the "white hole"phenomenon; at night, so the driver can see the inside and outside the linear path of obstacles in the road, Elimination of export at the "black hole"phenomenon, the general practice is to use the street as a continuation of lightoutside the cave.
Guanyinqiao Tunnel in Chongqing Jiangbei District in Chongqing, the most prosperous commercial pedestrian street, is also connected Yuzhong District, Chongqing Jiangbei International Airport and the city main road, traffic is heavy, the project was previously used in the transformation of 400W, 250W, 100W of sodium tunnel lighting , Visual perception is poor, light electrical failure rate, high power consumption, and thus there is a certain security risk. Guanyinqiao of Tunnel lighting replacement project, the warmwhite light source and electrical in this 300 meters long and 8 meters wide, two-way 4-lane tunnel at 4 meters high degree of bilateral symmetry, the installation of the layout, the warm white series Group close to the sun lights the color performance, better environment to enhance the visibility of the tunnel and easier to identify details of the road and surrounding environment, the safety of road lighting and comfort to a higher level, At the same time saving of up to 44% of Consolidated, the region has become a model for green lighting the road.