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Helsinki Metro

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The Helsinki Metro is a rapid transit system serving the Helsinki capital region in Finland.

Helsinkimetro
Helsinkimetro

It holds a unique distinction as the only metro system in the country. It is also the northernmost metro system in the entire world. The system serves as a vital pillar of public transport. It works alongside the Helsinki commuter rail, light rail, and trunk bus lines. Currently, the metro carries approximately 92.6 million passengers every year.

Helsinki Region rail transport w plans
Helsinki Region rail transport w plans

This high volume of riders demonstrates how essential the system is for moving people through the capital region.

The metro operates using two main lines that share much of the same track.

Helsinki metro map 2007
Helsinki metro map 2007

Line M1 runs between Kivenlahti and Vuosaari. Line M2 runs between Tapiola and Mellunmäki. The system includes a total of 30 stations. Most of these are located underground, with 21 stations beneath the surface. Only nine stations are located above ground.

Kontulan metroasema
Kontulan metroasema

The tracks pass directly under the Helsinki Central Station. This design allows passengers to transfer to the commuter rail network. This connection includes the Ring Rail Line, which provides access to the Helsinki Airport.

The system has grown significantly through several expansion phases. Originally, it was a single line from Rautatientori to Itäkeskus. Later, a fork was added in the east to reach Mellunmäki and Vuosaari. A westward extension to Ruoholahti followed. The Länsimetro extension opened on November 18, 2017. This project moved the tracks through Lauttasaari and into the neighboring city of Espoo. It reached Tapiola and Matinkylä. The most recent major expansion reached Kivenlahti on December 3, 2022. These additions ensure the metro connects the eastern suburbs to the western suburbs and downtown Helsinki.

The history of the metro began with discussions in 1955. A suburban traffic committee led by Reino Castrén investigated the need for a tunneled system. They predicted that Helsinki's population would grow too fast for street-level traffic. They suggested moving public transport underground to free up streets for private cars. In 1963, the committee proposed a light rail system. This plan included many more stations at shorter intervals than the current system. However, the city council rejected this proposal because it was considered too extensive.

Helsinki metro plan 1963
Helsinki metro plan 1963

After the light rail plan failed, the approach to the project changed. In 1967, Unto Valtanen took over leadership of the committee. He determined that the metro should be a heavy rail system instead. This meant the tracks would be built in deep tunnels mined into the bedrock. This decision changed the entire technical nature of the project. The city council finally approved the proposal for an initial line in May 1969. Construction of the tunnels began in earnest in 1971.

Metro construction in Helsinki, Finland, 1978
Metro construction in Helsinki, Finland, 1978

Building the tunnels presented a major engineering challenge known as the Kluuvi bruise. This was a wedge of clay found within the bedrock during excavation. To solve this, engineers used an unusual method involving Freon 22. They pushed pipes filled with this substance through the clay to turn it into a giant freezer. Once the clay was frozen solid, workers could carefully blast it away. They then installed cast iron tubes to create a permanent, durable tunnel.

M100-train arriving to Kamppi metro station in Helsinki
M100-train arriving to Kamppi metro station in Helsinki

This innovative solution allowed construction to continue through difficult geological conditions.

The Helsinki Metro is more than just a way to travel. The underground stations were specifically designed to serve as bomb shelters. This adds a layer of safety and civil defense to the infrastructure. The system's identity is also well-known through its orange logo with a white M.

Myyrä Fan Club
Myyrä Fan Club

This logo was chosen following a design contest. The winning entry featured a cartoon mole, which was popular with the public. Today, the metro remains a central part of the Finnish transport network, linking various cities and suburbs through a complex underground and overground web.

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🖼️ Images & Media (36)
File:Myllypuro metro station entrance April 2022.jpg
Myllypuro metro station entrance April 2022.jpg
File:Tram 2 in Helsinki.jpg
Tram 2 in Helsinki.jpg
File:Helsinki metro plan 1963.png
Helsinki metro plan 1963.png
File:Helsinki metro plan 1971.png
Helsinki metro plan 1971.png
File:Helsinki-Metro-testdrive-1970s.jpg
Helsinki-Metro-testdrive-1970s.jpg
File:Helsinki-metro-inauguration-1972.jpg
Helsinki-metro-inauguration-1972.jpg
File:Metro construction in Helsinki, Finland, 1978.jpg
Metro construction in Helsinki, Finland, 1978.jpg
File:M100-train arriving to Kamppi metro station in Helsinki.jpg
M100-train arriving to Kamppi metro...
File:Kontulan metroasema.JPG
Kontulan metroasema.JPG
File:Myyrä Fan Club.jpg
Myyrä Fan Club.jpg
File:Helsinki-metro-opening-1982b.jpg
Helsinki-metro-opening-1982b.jpg
File:Helsinkimetro.JPG
Helsinkimetro.JPG

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