Schréder provides efficient lighting solutions for tunnels and underpasses. Our offer covers the full scope of the project from design to after-sales services, including smart technology for a fast and easy installation, adaptive lighting, intelligent control systems and safety equipment.

Our dedicated solutions transform tunnels and underpasses into safe, comfortable, sustainable and intelligent routes offering a pleasant driving experience for the users and operational benefits for the managers.

A challenging environment Tunnel lighting must always guarantee that the visual perception of a driver is maintained, both during the day and night, by avoiding excessive variations in lighting levels when entering and leaving a tunnel.

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Safe and reliable solutions with high added-value

Schréder Tunnels

ZONE DEFINITION REQUIREMENTS CHALLENGE IN TERMS OF LIGHTING RISK LEVEL

ACCESS Area leading to the tunnel entrance Drivers must be able to identify obstacles

- Light uniformity - Lay-out restrictions

(wall mounting) Medium

THRESHOLD Tunnel entrance Maintaining the uniformity in luminance between the access area and this zone

- Avoiding the black hole effect coming from the contrast

- Luminaires can create a glare effect

High

TRANSITION

Second part of the tunnel coming directly after the threshold zone

Progressively reducing the luminance to allow the human eye to adapt

Providing the right levels to enable the adaptation Medium

INTERIOR Interior zone of the tunnel leading to the exit zone

High uniformity to ensure safety Avoiding the flickering effect Low

EXIT Last section of the tunnel

Increasing the luminance level to prepare the human eye to adapt to the outside brightness

Avoiding the glare effect High

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