The world's longest tunnel. Mountain Tunnel Lötschberg

Lefortovo tunnel

In Moscow, the leader in terms of length is the Lefortovo tunnel. It lies in the south-eastern part of Moscow and is part of the third transport ring. The longest tunnel in Moscow has a length of 3,246 kilometers, it is also one of the largest tunnels in Europe. The tunnel is located under the Yauza River and Lefortovo Park. The Lefotovo Tunnel has seven lanes for vehicles (three lanes in north side traffic and four lanes southbound).

Nicknamed "Tunnel of Death"

Each strip is three and a half meters wide. The Lefortovo tunnel is a deep tunnel (up to 30 meters), such a depth is dictated by the need to absorb noise and vibration from a large traffic flow.

On average, approximately 3,500 vehicles pass through this tunnel per hour, and it copes well with this intensity. But, during peak hours, the flow increases to seven to eight thousand, which causes frequent accidents, including fatalities. According to statistics, this tunnel is one of the most dangerous sections of roads in Moscow in terms of the number of accidents, in connection with this it received an unflattering nickname - the “tunnel of death”.

Causes of car accidents

The reason for such a high danger lies in a banal violation traffic rules associated with limiting speed and ignoring the solid dividing line between lanes, excluding changing lanes. The maximum permitted speed in the tunnel is 60 km per hour, but the “record” for speeding is 236 km per hour.

The Lefortovo tunnel is equipped with safety and life support systems: ventilation, drainage system, fire protection system. Also, payphones and video surveillance systems are installed along the entire length. A central control center is provided to manage all communications.

The longest tunnel in Moscow was put into operation in December 2003. By the way, the longest road tunnel in the world is located in Norway, its length is almost 25 kilometers.

Victor Alexandrov, Samogo.Net

March 1, 1880 and the construction of the railway was completed tunnel at the pass Saint Gotthard in Switzerland - the most complex engineering structure of those times, which became a symbol of the subjugation of nature by man. And today we will talk about several the world's greatest and most significant tunnels- from the already mentioned Saint Gotthard in the Alps to the Marmaray line under the Bosphorus, which opened in October 2013, each of which marked a new milestone in the development of their country.

Gotthard tunnel. Switzerland

The Saint Gotthard pass in the Alps is known in Russia thanks to the feat of the commander Alexander Suvorov, who crossed it with great difficulty and losses in the fall of 1799. And in 1880, it became much easier to overcome the mountains in this area, because the construction of a 15-kilometer railway tunnel, one of the most famous such structures in the world, was completed there. It significantly simplified the movement of goods across Europe, and also became one of the keys to the economic well-being of Switzerland.

In 1980, not far from the century-old railway tunnel, a automotive length 16.9 kilometers. And now construction is underway on an even larger-scale structure at the Gotthard Pass - a 57-kilometer railway tunnel, which, when commissioned in 2017, will become the longest in the world.

Seikan Tunnel. Japan

In 1954 in Japan there was tragic event– during an unprecedented storm in the Sangar Strait between the islands of Honshu and Hokkaido, five passenger ferries sank, resulting in the death of more than a thousand people. And this was far from the first such disaster in this place - ships sailing between the two largest Japanese islands died regularly for centuries. To finally solve this problem, the Japanese government decided to build a tunnel under the strait.

Work on this structure began in 1964 and lasted more than twenty years. Opened in 1988, the 54-kilometer Seikan became the longest railway tunnel in the world and still holds this record.

In 1988, about 3 million passengers used the services of the Sangar tunnel, in 1999 - 2 million, and in 2009 - a little more than a million. For comparison, the annual volume of passenger traffic between Honshu and Hokkaido is tens of times greater. But as a freight road, this tunnel has no worthy competitors.

Eurotunnel. France-UK

It’s hard to believe, but the idea of ​​​​building a tunnel between France and Great Britain appeared in the late eighteenth - early nineteenth centuries, and Napoleon Bonaparte himself acted as the “customer” of the project. But real progress in this direction began only after the Second World War, and construction itself started only in December 1987.

The grand opening of the Eurotunnel took place on May 6, 1994, with the participation of Queen Elizabeth II of Great Britain and French President Jacques Chirac. The tunnels (three in total: two transport and one technical) are used as railway tunnels - they are used in both directions high speed trains TGV Eurostar and Eurotunnel Shuttle connecting London with Paris and Brussels. The Eurotunnel accounts for 67% of passenger traffic between France and England.

Laerdal tunnel. Norway

Built in Norway in 1995-2000, the Lærdal Tunnel can be called the most beautiful such engineering structure on the planet. Plus it's the longest car tunnel in the world, because its length is 24.5 kilometers.

In order to at least slightly diversify the route of progress and relieve stress for drivers, the architects who worked on the Lärdal Tunnel divided it into four approximately equal parts with three artificial caves. Each of these grottoes has its own lighting color, which gives this engineering object originality and beauty. You can also stop in these caves, park in special pits, and rest a little.

Oresund Bridge. Denmark, Sweden

It is not entirely logical that the list of the greatest tunnels in the world includes a bridge connecting two Scandinavian countries - Denmark and Norway. But no error in this fact no, because of the almost 12 kilometers of length of this structure, 4050 meters are underground.

The architects of the Oresund Bridge took such an extraordinary solution for the reason that it is in this place that the glide path of planes heading to Copenhagen Airport passes, and it cannot be blocked. And ships sailing through the Öresund Strait also need space for successful navigation.

Severomuysky tunnel. Russia

On December 5, 2003, a historical event for all of Russia took place in Buryatia - the Severomuysky tunnel, 15 kilometers 343 meters long, was opened there. It became not only the longest in Russia, but also marked the end of the construction of the Baikal-Amur Mainline, the legendary BAM - one of the greatest construction projects of Soviet times.

The construction of the Baikal-Amur Mainline began back in 1938, in 1974 it was declared an all-Union shock Komsomol construction project, they began writing songs and making films about it, and was completed to its intended extent only in 2003. During the creation of the BAM, 10 tunnels were dug, the largest and Severomuisky became an important one.

Marmaray. Türkiye

In October 2013, an event occurred that humanity had dreamed about for centuries, but did not believe in the reality of its implementation until the very last moment. The Marmaray railway tunnel was opened in Istanbul, connecting the European and Asian shores of the Bosphorus Strait.

After its opening, Marmaray was integrated into the Istanbul metro system as a separate line. It is also planned to be used for transcontinental freight and passenger transport - the tunnel will become part of a global railway project to create a single track infrastructure from the UK to South Korea.

The longest, deepest tunnel in the world, running under the Swiss Alps, has finally opened! To mark this occasion, in this article we will look at the longest railway tunnels in the world.

So, let's go!

10. Gumzang Tunnel, South Korea - 20.3 km

(Geumjeong Tunnel)

Gumzangl is ranked tenth on the list of the longest railway tunnels in the world. It is part of the Seoul-Busan High Speed ​​Railway. A tunnel buried in the mountains connects the Nopo area with Busanjin Station in Busan.

Also, Gumzangl is the longest railway tunnel in South Korea. It is located at a depth of more than 300 m from the ground. Its width is 14 meters, height 12. The tunnel belongs to the South Korean Railway Administration.

Construction of the tunnel, which was completed in 2009, took place in three sections. The first two sites were opened in 2008. The last section, connecting Nopo-dong and Hwameong-dong, was completed in February 2009.

9. Wushaoling Tunnel, China - 21.05 km

(Wushaoling Tunnel)

Wushaoling, a railway tunnel in Gansu province in northwestern China, was the country's longest tunnel until the end of 2007. Located on the Lanzhou-Xinjiang Railway crossing the Wushaoling Mountains. After the tunnel was put into operation, the road between Lanzhou and Urumqi was shortened by 30.4 km and became completely double-track.

The tunnel consists of two parallel threads, laid at a distance of 40 meters from each other. The portal on the Lanzhou side is located at an altitude of 2663 m, the opposite portal is at an altitude of 2447 m. During the construction of the tunnel, a new Austrian tunneling method was used; the tunnel equipment allows trains to pass at speeds of up to 160 km/h. The eastern line of the Wushaoling tunnel was put into operation in March 2006, the western line in August 2006. The total construction cost was 7.8 billion yuan.

22,221 km

(Daishimizu Tunnel)

Daismizu Tunnel, Japan. Photo: Nihongarden/Wikimedia Commons

A railway tunnel on the Jōetsu Shinkansen high-speed line on the border of Gunma and Niigata prefectures.

In 1978, construction of the Dai-Shimizu Tunnel was completed. This tunnel was dug specifically for the Joetsu Shinkansen line, which was scheduled to be completed in 1982. This tunnel was the longest tunnel in the world. During construction, a fire broke out in the tunnel, resulting in very heavy smoke - 16 workers died from carbon monoxide poisoning. The Daismizu Tunnel reduced travel time between Niigata and Tokyo to approximately one hour and forty minutes, three hours faster than the regular Joetsu Line.

In addition, during the construction of the tunnel, natural drinking water was discovered. mineral water, which is still sold in bottles to this day.

24 km

(Wienerwald Tunnel)

Wienerwald Tunnel, Austria. Photo: Line29 / Wikimedia Commons

The 13.35 kilometer long railway tunnel near Vienna, which has been in operation since December 9, 2012, runs under the northern part of the Wienerwald between Gablitz and Mauerbach. This section of the new section, with speeds of up to 250 kilometers per hour, between Vienna and St. Pölten, is part of the Austrian Western Railway.

The Vienna-St. Pölten section, the current four-way and largest railway corridor in the Westbahn, received two new high-speed branches extending far north of the original line. The largest superstructure is a tunnel that crosses the Wienerwald mountains.

11 km from the western portal of the Wienerwald Tunnel, a double-pipe tunnel (a tunnel consisting of two connected single-track pipes) was built, and the rest is a double-track single-pipe section. Construction of the single-pipe section began in the fall of 2004 using blasting and drilling. The tunnel drilling was completed two years later, structural work was completed in February 2010, and road construction began in the summer of 2010.

The Wienerwald Tunnel is only part of the tunnel complex: its eastern (Viennese) portal ends with an underground passage into a 2.2 km long tunnel with two additional lines for the old Westbahn (which has already been in operation since December 2008) and the Lainzer Tunnel - single-pipe, double-track tunnel with a length of 11.73 km, which opened in 2012). The eastern portal of the Lainzer Tunnel branches into two portals. A total of 24 km of the Wienerwald and Lainzer Tunnel allow travelers along the Westbahn to visit the new main station Vienna. This tunnel is the longest tunnel in Austria.

6. Iwate-Ichinohe Tunnel, Japan - 25,810 km

(Iwate-Ichinohe Tunnel)

The Japanese Iwate-Ichinohe Overland Rail Tunnel is part of the Tohoku Shinkansen line connecting Tokyo with Aomori. When it opened in 2002, it was the longest land tunnel in the world, but was surpassed by the Swiss Lötschberg Tunnel in June 2007.

The tunnel is located 545 km from Tokyo Station on the Tohoku Shinkansen Line, halfway between Morioka and Hachinohe. Preliminary work on the construction of the tunnel began in 1988. Construction began in 1991. The tunnel began operating when the railway opened in 2002. Maximum depth about 200 m.

The tunnel passes through the hilly terrain near Mount Kitakami and Mount Ou. The Mabuchi and Kitakami rivers are located near the Tokyo Tunnel Port.

The Iwate-Ichinohe is a single-tube, double-track, horseshoe-shaped structure. Dimensions cross section: 9.8 m (width) x 7.7 m (height). The tunnel rises with a 0.5% gradient from Tokyo Port for approximately 22 km and then descends with a 1% gradient to Aomori Port. During its construction it was used new method Austrian tunneling (New Austrian Tunnelling method; NATM).

26.455 km

(Hakkōda Tunnel)

Hakkoda Tunnel, Japan. Photo: Wikimedia Commons

Railway tunnel total length 26,445 kilometers (16,432 mi), located in northern Japan in the central Aomori Prefecture. It extends across the Hakkyoda Range and links the village of Tenmabayashi with the city of Aomori.

The Hakkoda Tunnel is part of the Tohoku Shinkansen Northern Line and is located between Shichino-Budawa and Shin Aomori stations. Preliminary work on the tunnel began in August 1998. On February 27, 2005, it surpassed the Iwate-Ichinoe Tunnel of the same Tohoku Shinkansen line to become the world's longest surface tunnel. After just two months, this title was taken away from him by the Swiss Lötschberg Tunnel, which lost this title thanks to the Gotthard Base Tunnel that opened in 2016. However, the Lötschberg Tunnel is mostly single-track, while the Gotthard Base Tunnel is double-track, which is why it remains the longest double-track single-pipe surface railway tunnel in the world.

The tunnel began operating in 2010.

4. New Guan Jiao Tunnel, China - 32.645 km

(New Guanjiao Tunnel)

New Guan Jiao Tunnel, China. Photo: Wikimedia Commons

This double-pipe railway tunnel is located on Line 2 of the Qinghai-Tibet Railway in GuanJiao Mountains, Qinghai Province. The total length of the tunnel is 32,645 km (20,285 mi), making it the longest railway tunnel in China.

The China Railway First Survey and Design Institute was responsible for the design of the tunnel. The new Guan Jiao Tunnel was designed for two parallel single-track tunnels with travel speeds of up to 160 kilometers per hour (99 mph). Total duration construction took 5 years. The tunnel was built in difficult geological conditions and on high altitude, exceeding 3,300 meters (10,800 ft) above sea level. Work on its construction began in 2007 and was completed in April 2014. The tunnel was opened on December 28, 2014.

The northeastern portal of the tunnel (37.1834°N 99.1778°E) is located in Tianjun County, the southwestern portal (37.0094°N 98.8805°E) is located in Wulan County.

3. Eurotunnel / Channel Tunnel, UK-France - 50 km

(Channel Tunnel)

Eurotunnel, UK-France. Photo: 4plebs.org

Connecting Great Britain with continental Europe(portals to Folkestone, Kent and Pas-de-Calais in northern France), the tunnel has the world's longest underwater section at 37.9 kilometers (23.5 miles).

Even though this tunnel is a miracle modern era, the idea for its construction belongs to the French engineer Albert Mathieu, who in 1802 proposed building a tunnel under the English Channel. His plans included creating an artificial island in the middle of the canal, where they could stop for Maintenance horse carriages.

“This is a megaproject. It revolutionized the geography of Europe and helped cement high-speed rail as a viable alternative to flying. short distances" said Matt Sykes, tunnel expert and director of engineering company Arup.

Interesting fact: despite the fact that both the British and the French began work on creating the tunnel at the same time, the former did more work.

53,850 km

(Seikan Tunnel)

Seikan Tunnel, Japan. Photo: Bmazerolles / Wikimedia Commons

A unique feature of Japan's Seikan Tunnel is that its 23.3 kilometers (14.2 miles) section lies 140 meters (460 feet) below sea level. Until the Gotthard Base Tunnel was built, Seikan was the longest and deepest railway tunnel in the world.

It spans the Tsugaru Strait, connecting Aomori Prefecture on the island of Honshu with the island of Hokkaido. Work on the tunnel began in 1964 and was completed in 1988.

Interesting fact: In 1976, construction workers stumbled upon an area of ​​soft rock, causing water to rush into the tunnel at a rate of 80 tons per minute. The leak was neutralized only two months later.

57 km

(Gotthard Base Tunnel)

Gotthard Base Tunnel, Switzerland. Photo: Matthieu Gafsou / www.time.com

European leaders, including German Chancellor Angela Merkel and ex-president France Francois Hollande, in June 2016 attended the opening ceremony grandiose building- Gotthard Base Tunnel, during which colorful surreal scenes were demonstrated with the participation of costumed dancers, songs and fireworks.

Located at a depth of 2,300 meters (7,545 feet, almost 1.5 miles), the tunnel cuts travel time between Zurich, Switzerland and Milan by an hour.

The 57-kilometer tunnel runs between the towns of Erstfeld in the north and Bodio in the south. According to the Swiss Travel System, trains reaching speeds of up to 250 kilometers per hour (155 mph) complete the journey in 20 minutes.

Commercial operation of the tunnel began on December 11. On this day, the first regular passenger train left Zurich at 06:09 local time and arrived in Lugano at 08:17.

The Gotthard Base Tunnel took the title of the longest railway tunnel in the world from the 53.9-kilometer northern Japanese Seikan Tunnel and pushed the 50.5-kilometer tunnel between Great Britain and France into third place.

Interesting fact: during the construction of the tunnel, 3,200 kilometers of copper cable were used, the length of which would be enough from Madrid to Moscow.

Relief earth's surface not perfectly flat, but almost always difficult, so when laying roads it is almost impossible to do without tunnels. The prototypes of tunnels in ancient times were mines; with the help of this military stratagem one could sneak behind the enemy's back unnoticed and fall on his shoulders. Today's tunnels, for the most part, serve completely different purposes. There are a variety of tunnels, differing in length, location and structure. What is currently the longest tunnel in the world?

10. Laerdal Tunnel, Norway (24,510 m)

IN in this case we are talking about a road tunnel that shortens the route from the municipality of Laerdal to the other municipality of Aurland (both in the county of Sogn og Fjordane, Western Norway). The tunnel is part of the European highway E16, connecting Oslo with Bergen. Construction of this tunnel began in 1995 and was completed in 2000. At that time, it became the longest road tunnel in the world, surpassing the famous Gotthard road tunnel by as much as 8 km. Above the tunnel there are mountains with average height about 1600 meters.
The Lärdal Tunnel has a unique feature - three large-volume artificial grottoes are chosen in it at the same distance from each other. These grottoes divide the tunnel itself into 4 approximately equal sections. This is not a whim of the architects, but the purpose of the grottoes is to relieve fatigue from drivers driving for a long time in completely monotonous tunnel conditions, and here they can stop and rest.

9. Iwate-Ichinohe, Japan (25,810 m)

The Japanese tunnel connecting the capital with the city of Aomori, at the time of its opening in 2002, it was the longest Japanese railway tunnel until it was overtaken by the Lötschberg tunnel. This tunnel is located 545 kilometers from Tokyo, halfway between Hachinohe and Morioka, and the Chohoku express trains run through it. We started thinking about its construction in 1988, and started it in 1991. The structure was ready for operation in 2000, but the line began operating only in 2002. The tunnel goes down a maximum of 200 meters.

8. Hakkoda, Japan (26,455 m)

The Hakkoda railway tunnel is only a little longer than the previous one. He was a kind of pioneer - before him, there were no long tunnels in the world through which trains could simultaneously move in different directions.

7. Taihangshan, China (27,848 m)

In 2007, a new Taihangshan tunnel was put into operation in China, passing through the thickness of the mountain range of the same name. Before the construction of the New Guan Jiao, it was the longest Chinese tunnel. It became an element of the high-speed railway that connected the capital of the eastern province of Hebei, Shijiach-Zhuang, with the capital of the adjacent Shanxi province from the west, the city of Taiyuan. If previously it took 6 hours to get from one city to another, now an hour is enough.

6. Guadarrama, Spain (28,377 m)

In the same 2007, but in Spain, the longest tunnel in the country, Guadarrama, was opened, which connected the capital of the country, Madrid, with Valladolid. It began to be built in 2002, so it is obvious that it was done quite at a fast pace. This is a rather complex technical structure, which also contains two separate tunnels. Thanks to this, trains run along it simultaneously in different directions. It is especially worth noting that high-speed trains of the AVE system are used here. After the launch of the tunnel, it became possible to get from one city to another in just a few minutes. This was especially liked by tourists, who began to visit Valladolid from the capital more often.

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5. New Guan Jiao, China (32,645 m)

This is China's longest railway tunnel. At the same time, being located, as befits an underground tunnel, it is located at a very decent height above sea level (from 3324 meters to 3381 meters). And all because it is part of the second line of the Qinghai-Tibet Railway, laid in the Guan Jiao Mountains Chinese province Qinghai. In fact, there are two separate one-way tunnels here. This tunnel took 7 years to build, and it was put into operation at the very end of 2014. Trains are capable of rushing through these tunnels at a speed of 160 km/h.

4. Lötschberg, Switzerland (34,577 m)

The Lötschberg railway tunnel is located on the line of the same name passing through the Alps, and it is located 400 meters deeper than the Lötschberg road tunnel. Passenger and freight trains travel through this one of the world's longest land tunnels. It passes under cities such as Bern, Frutigen, Valais and Raron. This is a fairly new tunnel, because it was completed only in 2006, and already in June next year it was officially opened. During its excavation, the most modern technologies drilling, so it was possible to break through it in less than two years. Now over 20 thousand Swiss people use it every week, trying to quickly get to the thermal resorts in Valais.
The appearance of Lötschberg significantly reduced the number traffic jams in this area, since previously trucks and vans had to go around Switzerland, making a large circle to travel just from Valais to Bern. It is curious that in the tunnel there is a source of hot underground water, which the Swiss also do not waste, but use it to heat the greenhouse, where tropical fruits grow thanks to this.

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3. Eurotunnel, France/UK (50,450 m)

This Channel Tunnel is a double-track railway tunnel that runs 39 kilometers under the English Channel. Thanks to him, the island of Great Britain was connected to the continent by rail. Since then, it has become possible to board a train in Paris and be in London in two and a quarter hours. The train stays in the tunnel itself for 20-35 minutes.
The grand opening of the tunnel took place on May 6, 1994. It was attended by the leaders of two countries - French President Francois Mitterrand and Queen Elizabeth II of Great Britain. The Eurotunnel holds the record for underwater tunnels and is also the longest international tunnel. Its work is managed by the Eurostar company. The American Society of Civil Engineers was full of compliments and even compared the Eurotunnel to one of the seven modern wonders of the world.

2. Seikan, Japan (53,850 m)

This incredibly long Japanese railway tunnel also has an underwater section that is 23.3 kilometers long. It goes 240 meters underground, resulting in 100 meters below the seabed. The tunnel passes under the Sangar Strait and connects Aomori Prefecture (Honshu Island) and the island of Hokkaido. It is part of the Kaikyo and Hokkaido Shinkansen of the local railway company.
In length it is second only to the Gotthard Tunnel, and in terms of its location under the seabed it is the leader in the world. The name of the tunnel contains the first hieroglyphs of the names of the cities that it connects - Amori and Hakodate, just those on Japanese are pronounced differently. The Seikan Tunnel became the second underwater railway tunnel after the Kammon Tunnel in Japan, and it connects the islands of Kyushu and Honshu under the Kammon Strait.

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1. Gotthard Tunnel, Switzerland (57,091 m)

This railway tunnel, dug into the Swiss Alps, when you add it up own length with the length of pedestrian and service passages it will stretch for 153.4 kilometers. At the northern end it exits near the village of Erstfeld, and the southern exit is located near the village of Bodio. The eastern part was completed in October 2010, and the western part in March 2011, after which it became the longest railway tunnel in the world.
Thanks to its construction, transalpine transport became possible. railway connection, and north-west Italy was able to switch from polluting road transport to cleaner and cheaper rail transport. Travel time from Zurich to Milan has been reduced by almost an hour. The tunnel was opened in June 2016. The company controlling its construction, Alp Transit Gotthard, handed it over to the Swiss federal authorities in December of the same year. railways in fully working order, and commercial operation began on December 11.

Tunnels are true architectural wonders that have been developed and improved since ancient times. The tunnels probably originate from caves that ancient people used as homes. If we look to the future, to a more civilized period, we can see that tunnels are used as secret passages, usually underground. They were used to hide from enemies. Nowadays, tunnels are built for completely different purposes. In this collection I will tell you about the longest tunnels in the world and their purpose

1. So, the longest tunnel in the world at the moment is in Japan. This railway tunnel length is 53,850 meters. Just imagine how many days it will take to travel on foot before you reach the other side

The Seikan Tunnel is also the longest underwater tunnel in the world. After World War II, Japan felt the need to connect the islands of Hokkaido and Honshu, so that the country would be geographically unified. From the moment of planning in 1946 to its official opening March 13, 1988, it took more than 40 years to complete. Construction cost big money: ?538.4 billion, equivalent to $3.6 billion

Today, unfortunately, Seikan is not used as often as it once was because air travel is both faster and cheaper. However, this building was one of the main reasons why Japan is strong and united to this day. It is worth mentioning that this tunnel will remain the longest until 2016, when the Gotthard Base Tunnel in Switzerland is built

2. The Channel Tunnel, or the longest international tunnel in the world, connects the United Kingdom and France with a 50,500 meter passage. The tunnel connects the cities of Folkestone in the UK and Calais in France. The tunnel also boasts the world's largest car-carrying train, the Eurotunnel Shuttle.

Construction of the Channel Tunnel was frozen for almost two hundred years from 1802, due to constant hesitation on the part of the British and political instability. Ultimately, construction began in 1988 and ended quite quickly in 1994. The Channel Tunnel was also one of the candidates for inclusion in the list of the Seven New Wonders of the World. Undoubtedly, this great structure played a key role in uniting Britain with the mainland, although with material point it still remains unprofitable

3. Compared to other tunnels Lötschberg tunnel(L?tschberg) is still very young, it was completed in 2006, and officially opened in June 2007. The Lötschberg tunnel is the most long tunnel in the world on land, is 34,700 meters long. The tunnel runs between the Swiss cantons of Bern and Valais and is used by freight and passenger trains. Thanks to the latest technologies the tunnel was built very quickly, in less than two years. Every week, more than 20,000 Swiss people use it as the shortest route to Welsh thermal spas. Thanks to L?tschberg, traffic in the region has been significantly reduced, as previously trucks had to bypass Switzerland to get from Bern to Valais. It's interesting that the heat from groundwater from the tunnel heats the Tropenhaus Frutigen greenhouse, where tropical fruits are grown

4. in Norway - the longest road tunnel in the world, its length is as much as 24,000 meters, located in the county of Sogn og Fjordane. Until 1999, Switzerland's Gotthard Road Tunnel was the longest road tunnel until Laerdal was built in 2000

The Lardal tunnel was designed according to modern standards. Unlike most tunnels, Laerdal is divided into four parts, each with special lighting. The lighting effect mimics natural light at dawn and dusk. Another positive thing is that you don’t have to pay any money for travel.

Driving through tunnels is always perceived in a special way, very exciting - you see how the headlights catch images and road signs, how the air rustles during a fast drive and perceive the light at the end of the tunnel with special joy. We told you about the four longest tunnels in the world, we wish you to drive through each of them and get an unforgettable experience