Why are tube lines so deep?

About half of the underground lines, in terms of length, are actually on the surface when out of the central area. It is easier and safer to dig at depth in London because of the nature of the soil and to avoid other infrastructure and the Thames.



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Because Hampstead is on a steep hill, the station's platforms are the deepest on the London Underground network, at 58.5 metres (192 ft) below ground level; and it has the deepest lift shaft on the Underground, at 55 metres (180 ft).

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THE world's deepest metro, underground station is the Arsenalna Station on the Kiev Metro in Ukraine, at 107 meters deep.

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The Lee tunnel is the deepest tunnel ever built in London. It includes five shafts that run as deep as 95 m (312 ft) and need to handle groundwater pressures as high as 8 bar.

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How to Survive a Fall Onto Subway Tracks
  1. Look for others who can help you back onto the platform by offering a hand and pulling you up.
  2. Tuck into an alcove or underneath the platform where you can fit.
  3. Stand between two sets of tracks where there is typically enough clearance to be safe.


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London Underground train speeds vary across our network, from as slow as 15MPH, up to 60MPH. The speed of the trains can be impacted by a range of factors including the track infrastructure, the type of signalling system, the distance between stations, and the frequency of services in the timetable.

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Angel has the Underground's longest escalator at 60m/197ft, with a vertical rise of 27.5m. 8. The shortest escalator is Stratford, with a vertical rise of 4.1m.

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The Metropolitan line is the oldest underground railway in the world. The Metropolitan Railway opened in January 1863 and was an immediate success, though its construction took nearly two years and caused huge disruption in the streets.

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Opening in 1863 as Metropolitan Railway, the Metropolitan line includes the oldest underground railway in the world and starting the whole of the London Underground network.

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The four rail system was first used in the early twentieth century. The isolated traction current return allowed a train's position to be detected using DC track circuits, and reduced any earth leakage currents that could affect service pipes, telephone cables, or cast iron tunnel liners.

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Metropolitan line Opened in 1863, The Metropolitan Railway between Paddington and Farringdon was the first, urban, underground railway in the world. An extension from Baker Street to Swiss Cottage in 1868, however, put an end to this claim to fame.

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About. The Royal Borough has two foot tunnels at Greenwich and Woolwich which are used by 1.5 million people a year to cross underneath the river Thames. From Greenwich, you can use the foot tunnel to walk to Island Gardens on the north of the river for the famous Canaletto view of Greenwich.

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But, there's a secret tunnel in East London that's even deeper than the Tube, and many Londoners don't know it exists. The Lee Tunnel, also known as the Stratford to East Ham deep tunnel, is 80 metres below the surface, and runs for 4.3 miles. This tunnel is rarely seen by people.

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