© gangoo/Shutterstock.com
Photo: © gangoo, Shutterstock.com

The World’s Longest Road Tunnel – Lærdal Tunnel

The Lærdal tunnel is the longest road tunnel in the world, with its 24,5 kilometres. The tunnel connects two municipalities, Aurland and Lærdal in Sogn og Fjordane. For this project Oglaend System delivered LOE cable ladders and 1600 custom-made supports.

Seeing as it takes 20 minutes to drive through the tunnel, it has been important to put several safety measures in place. Special lighting is installed to prevent drivers from falling asleep. The main tunnel light is white. But every 6 kilometres there are halls for stopping or turning, where the light is blue with yellow on the sides. This type of lightning will give the driver the illusion of driving through a sunrise and then entering daylight. Oglaend System supplied lighting support for these lights, which resulted in a total of 1650 lighting brackets.

Project details

Project

The Lærdal Tunnel

Type

Transport

Year

2000

Country

Norway

Operator

Statens Vegvesen

End location

Lærdal, Norway

Customer

Umoe (nå en del av ABB)