Tunnel lighting is very different from ordinary road lighting. In particular, it is necessary to consider the adaptation of visual brightness changes when the driver enters and exits the tunnel. Since the human eye needs to adapt to the change of brightness, it requires a certain process, which is easy to cause visual problems of "white hole" and "black hole". Therefore, the driver will have a certain blindness in the moment of entering and exiting the tunnel, which poses a serious hidden danger to safe driving. .
Therefore, a good tunnel lighting control system must be able to dynamically adjust the illumination color temperature and brightness according to parameters such as the intensity of the light inside and outside the tunnel, the traffic volume and the speed of the vehicle, so that the driver can quickly adapt to changes in the light intensity inside and outside the tunnel, to the greatest extent. Avoid traffic accidents.
How should we achieve the requirements for tunnel lighting? Today we are going to tell you about tunnel lighting.
How should tunnel lighting be designed?
First of all, let's spread the five sections of the tunnel with everyone:
Countries in the tunnel lighting process the long tunnels, but the division method is not the same. It is roughly divided into five sections: “proximity section, inlet section, transition section, intermediate section and exit sectionâ€.
The requirements for lighting in each segment are different.
1, close to the paragraph
When entering the tunnel, the brightness outside the tunnel during the day is much higher than that in the tunnel. If the tunnel is long enough, the driver sees a dark hole; if the tunnel is short, it is in front of the driver. A "black box". After entering the tunnel, the bright exterior enters a darker tunnel. The visual will have a certain adaptation time, and then the inside of the tunnel can be seen. Therefore, the visual problem of the approaching segment should be solved at the entrance.
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