The Norwegian Public Roads Administration’s (NPRA) challenge was to design the tunnel so that people did not find the 20-minute-long trip monotonous, thereby losing concentration during the long journey. Heaviest traffic in an hour: 400 vehicles The 24.5km-long stretch of tunnel stretches between Aurland and Laerdal on the new main highway connecting Oslo and Bergen. Where is the world's largest tunnel? Turning points: 15 A working group led by experienced psychologists at SINTEF (the Industrial and Technological Research Association) worked closely with the NPRA to assess what could be done to make the journey through the tunnel a pleasant experience. A great deal of investment was put into safety measures and equipment in the Laerdal tunnel. A ride across Norwegian County Road 653 near Volda, through the world's deepest undersea tunnel, the Eiksund Tunnel ( -287 m ) ^ previous name is Daxiangling Tunnel ^ 10.007 km + 9.962 km ^ the two two-lane directions are superimposed (hence duplex) in one tube ^ longest underground branch: W-E direction tube (Avenida de Portugal, M-30, Bypass sur) All drivers who enter the tunnel are given information via radio about whether they should wait or possibly turn round and drive out of the tunnel. Laerdal Tunnel (Aurland, Norway) The Laerdal Tunnel in West Norway is the world's longest road … The tunnel is reinforced and protected by 200,000 rock bolts for the safety of passengers. At 24.5 km (15.23 miles) long, the Lærdal Tunnel is the longest road tunnel in the world, meaning it’s the longest tunnel that you can drive through. Image courtesy of Svein-Magne Tunli. Price: Lærdal. The longest tunnel in the world. 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Now, Norway hopes to cut this drive down to 11 hours by building bridges and tunnels to help travelers across the fjords. The new link connects the city of Stavanger with Strand in the district of Ryfylke. Shortly before the opening of the tunnel a fan caught fire in a bus carrying about 50 people though the tunnel to the ceremony in Laerdal. The disposal of 2.5 million cubic metres of excavated rock from the tunnel was one of the greatest challenges in planning the tunnel. It took about five years and more than a billion kroner (approximately $114m) to construct. The tunnel part of the highway stretches for nearly six miles (9.6km) and is one of the longest undersea tunnels in the world. This includes electrical power systems, control systems (PLC) and emergency phone system. Popular round trip through the world's longest road tunnel. However, the longest of these engineering phenomena is the Laerdal Tunnel. LÆRDALSTUNNELEN - The world's longest road tunnel is 24,5 km long and situated between Aurland and Lærdal. The tunnel opened November 2000. Oglaend System supplied 1,600 custom-made supports and LOE cable ladders for the construction of the tunnel. The… With 2 lanes in place, the tunnel extends across the alps at 11.611 km. But it may surprise you to learn that it's … And you can drive through it?!! The Laerdal tunnel is an important part of the extension of a ferry-free, reliable road link between the two largest cities in Norway. Norway is currently building another subsea tunnel called the Rogaland Fixed Link or the Rogfast Tunnel that when successfully completed will set the record of being the world’s longest and deepest road tunnel. Inside the tunnel, bearings were indicated using laser beams. This plant cleans the passing air for critical polluting components, thus maintaining an acceptable air quality throughout the tunnel even during periods of heavy traffic and limiting the air volume and jet from power consumption which is required in order to ventilate the long tunnel. Did you know the Longest Road Tunnel in the World is in Norway? About 10km from the Aurland end of the tunnel, a cleaning plant for the tunnel ventilation air was installed in a short side tunnel. The Laerdal tunnel was opened in 2000. At any given point in the tunnel, the safe viewing distance is 1,000m or more. At 24 kilometers or just over 15 miles in length, Norway's Lærdal Tunnel is the longest tunnel in the world. {{? The two tunnel tubes will have a 10.5 metre diameter, each carry two lanes of traffic and feature a spiral loop to the island of Kvitsøy. Toggling to another language will take you to the matching page or nearest matching page within that selection. Currently the longest and most expensive rail tunnel in the world, the Gotthard Base Tunnel opened for service on 11… The road will take you in the heart of Sogn, in western Norway, where you’ll get to enter the world’s longest road tunnel: Lærdal tunnel stretches out at 24.5 kilometers (15.2 miles), connecting the cities of Lærdal and Aurland, and it’s definitely one for the books. The tunnel is the longest road tunnel in the world. Gudvanga Tunnel – Found in Norway, the tunnel connects to the very nearby village of Gudvangen – part of European Route E16. From an environmental perspective, the tunnel was seen as a justifiable investment to avoid destroying sections of the unspoiled natural landscape. To avoid major conflicts because of the cultural importance of the landscape and the productive agricultural land in the main valley, the Norwegian Public Roads Administration decided to build more than half of the tunnel from a 2.1km long access tunnel in Tynjadal. Interconsult a member of the Cowi Group was involved as electrification and automation consultant to design all electrical installations in the tunnel. Lighting is a central factor - every 6 km the area is widened and these rock chambers are fitted with special lighting. Lighting is a central factor - every 6 km the area is widened and these rock chambers are fitted with special lighting. The air quality in the tunnel is continuously monitored, and the air cleaning system automatically goes into operation when required. Year of built … More than 100 cameras will be used to prevent crime in the world's longest cycle and pedestrian tunnel set to open in Bergen in 2023. Japan’s Seikan Tunnel is the longest underwater tunnel in the world, and is located beneath the Tsugaru Strait. {{:price}} In June 1992, the Norwegian Parliament decided to construct the world’s longest road tunnel. The heat generation was around 35.000kW, and the temperature below the tunnel roof rose to more than 1000°C with no visible damage occurring to the tunnel cladding. The tunnel includes fire extinguishers at every 125m and 15 turning areas for semi-trailers and buses. The tunnel has been subdivided into four sections by means of specially widened areas which are large enough to allow coaches and trains to turn without having to reverse. The electrostatic precipitator is automatically quenched for de-dusting at regular intervals, while maintenance of the gas filtration catalyst is required only at intervals of several years. A detonator inside a small stick of Anolit dynamite was placed in the bottom of each hole. The World's longest Road Tunnels; Country: Tunnel: Length: Date of opening: Norway: Laerdal: 24 510 m: 27.11.2000: China: Zhongnanshan (2 tubes) 18 040 m Permanent roads were built in the tunnel, in parallel with the tunnelling work, so that transport vehicles could run on a good, paved road base during the construction period. The road links Aurland and Lærdal, in the heart of Sogn, and provides a ferry-free connection between Oslo and Bergen. Project costs -2000 value: Nok 1050 million. Building period: 1995-2000. Breakdown lay-bys: 48 Each drilling jumbo contained three automatic hydraulic drills. Blasting work has started on building the longest bicycle and pedestrian tunnel in the world. “The disposal of 2.5 million cubic metres of excavated rock from the tunnel was one of the greatest challenges in planning the tunnel.”, The Norwegian Public Roads Administration. {{preprice}} The Bømlafjord Tunnel is the country's longest, at 7,888 meters (25,879 ft). 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