CASE STUDY

CS120 Barcelona Tunnel Comes to Light Case Study ©2016 Lumileds Holding B.V. All rights reserved.

Barcelona Tunnel

Comes to Light

LED fixtures along el Túnel de La Vila

Olímpica deliver vastly improved visibility

and a robust design that will last decades

into the future.

Challenge

Winding along the beautiful Barcelona coastline is La Vila Olímpica, a road that carves

its way through some seventeen tunnels. Though drivers traversing this freeway might

give little thought to lighting inside these tunnels, they may now notice a dramatic

change inside one tunnel that has undergone a lighting upgrade. Inspired by the

potential savings in operating cost and improved visibility for drivers, the city of

Barcelona decided to invest in LED tunnel lighting to replace the existing low pressure

sodium fixtures.

In el Túnel de la Vila Olímpica, only one side can be used to situate the luminaires. This

requires a more flexible optical system that can provide light projection downward and

to the side to illuminate both driving lanes equally. In addition, drivers entering a tunnel

face stark contrast between daylight and a dark tunnel, so additional lumen output is

needed at the openings to allow visual adjustment. Further, vehicle speed and light

reflection from road and tunnel materials help determine necessary light levels inside

the tunnel.

Challenge

To provide a safe and energy efficient

lighting upgrade for the Túnel de la Vila

Olímpica Barcelona.

Solution

With a flexible optical design, the

Carandini T-Max luminaire projects

uniform lighting to the roadway

from one side of the tunnel and is

specifically designed for use in harsh

environments.

Results and Benefits

By providing higher lumen levels

at the tunnel entrance and exit

and consistent, high quality levels

throughout, the T-Max luminaires with

LUXEON M LEDs provide drivers with

safe tunnel lighting that will last 25

years. When regular cleaning with high

pressure water is performed, only one

lane of traffic needs to be interrupted.

T-Max fixtures by Carandini using LUXEON M LEDs were installed in el Túnel de la Vila

Olímpica. Carandini provided a customized design, which minimizes the stark contrast

between outside daylight and the dark tunnel.