Lærdal tunnel
| Lærdal tunnel | ||||
|---|---|---|---|---|
 West portal
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| use | Road tunnel, 2 lanes | |||
| traffic connection | Europastraße 16 | |||
| place | Aurland and Lærdal Municipality , Vestland ( Norway ) | |||
| length | 24.509 km | |||
| Number of tubes | 1 | |||
| construction | ||||
| start of building | March 15, 1995 | |||
| business | ||||
| toll | toll free | |||
| release | November 27, 2000 | |||
| location | ||||
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| Coordinates | ||||
| North-east portal at Lærdal | 61 ° 3 ′ 50 ″ N , 7 ° 30 ′ 7 ″ E | |||
| Southwest portal near Aurland | 60 ° 53 ′ 57 " N , 7 ° 12 ′ 54" E | |||
Map with all coordinates: The Lærdals Tunnel in Norway is the longest road tunnel in the world at 24.51 km .
The tunnel is located in the province of Vestland and connects the towns of Aurlandsvangen in the municipality of Aurland and Håbakken in the municipality of Lærdal . Construction began on March 15, 1995, the breakthrough took place on September 3, 1999 and the traffic handover at the Lærdal portal on November 27, 2000. The construction costs amounted to 930 million NOK , which corresponds to around 38,000 NOK per tunnel meter. On an annual average, the Lærdal tunnel is used by 2058 vehicles per day (as of 2019).
In contrast to Snøvegen , the old road across the mountains, the tunnel enables a connection between the two communities even in winter. The alternative used to be a ferry on the Sognefjord . The Lærdals Tunnel is also a key part of the year-round Oslo - Bergen road connection on the E16 .
Special features of this tunnel are the innovative type of lighting and the deliberately slightly curved route, which are intended to protect the driver from fatigue and promote concentration, which also increases traffic safety. There are also three color-lit halls in the tunnel where stopping is permitted, but no emergency exits. The only side access is a 2.1 kilometer long ventilation tunnel into the parallel Tynjadal . In order to check compliance with the speed limit of 80 km / h, devices for section control were set up in both directions , which measure the average speed of the vehicles through the tunnel.
Preparatory work for a comprehensive upgrade of the tunnel began in autumn 2020. In the first step, the ventilation tunnel is to be provided with a new shaft and new fans. The rest of the ventilation system will then be replaced from autumn 2021. The work will take a total of five years and cost between one and 2.5 billion crowns . From 2021, the tunnel is to be closed at night.
In 2025, the Lærdals tunnel is expected to give its record as the longest road tunnel in the world to the Norwegian Boknafjord tunnel , which will be over 2 km longer.
One of the three illuminated halls in the Lærdal tunnel
Third hall in front of Lærdal
The Snøvegen , the old road through the mountains between Aurland and Lærdal
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Web links
- Laerdal - World's longest Road Tunnel - Nov. 27 2000. In: lotsberg.net. November 21, 2006(English, photos and route).
- Lærdalstunnelen - The longest tunnel in the world. In: Sognefjord.no. Retrieved November 27, 2020 .
- Light at the end of the tunnel. In: BBC News . April 24, 2002(English).
- Åse Dragland: Comfort in the tunnel. In: ntnu.no . January 1998, archived from the original on August 15, 2000 (Norwegian).
- Norway to open world's longest road tunnel. In: CNN . November 24, 2000(English).
- Arne Brekke: World's Longest Road Tunnel: Laerdal - Aurland. In: bergen-guide.com. September 1, 2018 (English).
Individual evidence
- ↑ Trafikkdata. In: vegvesen.no . Retrieved November 27, 2020 (Norwegian).
- ↑ Bjørn Olav Amundsen: Første contract in enormous tunnel design: Nå shall ventilasjonen in Lærdalstunnelen rustes opp. In: veier24.no. March 12, 2020, accessed November 27, 2020 (Norwegian).
- ^ Roy Hilmar Svendsen: Vil nattestenge verdens longest tunnel in fire år: - Galskap! In: nrk.no . September 10, 2020, accessed November 27, 2020 (Norwegian).