Tunnel lighting

Tunnel lighting

Tunnel Emergency Light

The primary objectives of Tunnel Emergency Light are to ensure traffic safety by illuminating all important objects during the journey of vehicles and to improve visibility and comfort. Proper lighting in road tunnels will ensure that traffic can enter, pass through and leave the tunnel with a great level of safety. These aims are achieved by the adequate illumination of the tunnel interior, which allows drivers to quickly adjust to the light within, identify possible obstacles, and manage to leave the tunnel without reducing speed.

For that purpose, it is compulsory that the carriageway and the tunnel walls give a clear picture of the road. The road markings and stripes should also be visible, and tunnel lighting should ensure that objects on the road are visible at a sufficient distance.

Tunnel Emergency Light must then ensure an adequate luminance level on the road, throughout the tunnel, and that luminance has to be distributed uniformly on the road, in wet or in dry conditions. The lighting should not give rise to glare.

Tunnel lighting is critical during the day as the driver‘s eye is accustomed to daylight, and cannot adapt immediately to the darkness of the tunnel. For that reason, it is necessary to


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