Application Solution

Tunnel and Underpass LED Lighting Solution

LED lighting for road tunnels, industrial tunnels and underpasses, covering entrance, transition and interior zones, glare, dimming, emergency and maintenance.

Tunnel lighting manages driver adaptation from bright to dark and back. Entrance, transition, interior and exit zones should not use one identical output.

Design also considers speed, exterior luminance, pavement reflection, layout, emergency lighting, cleaning cycles and traffic closures.

Key project challenges

01

Entrance black-hole effect and transitions

02

Glare or visual flicker from repetitive layouts

03

Dust reduces optical output and reflectance

04

Traffic closures make maintenance costly

Recommended workflow

  1. 1

    Collect length, speed, portal orientation and pavement data

  2. 2

    Define entrance, transition, interior and exit zones

  3. 3

    Check optics, layout, dimming and emergency circuits

  4. 4

    Plan cleaning, testing and staged maintenance

Products

Recommended product directions

All products

Cases

Related application references

Product categories and technical guides

Frequently asked questions

Why use zoned tunnel dimming?

Exterior brightness and traffic vary, so zoning maintains adaptation and avoids unnecessary energy use.

Does every underpass follow road-tunnel design?

Requirements depend on vehicles, pedestrians, length, speed and applicable standards; short underpasses may differ.

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Send drawings, site photos, mounting height, environment, operating hours and target illuminance for a focused review.

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