Why is London Underground so narrow?

Smaller tunnels are cheaper to dig out then bigger tunnels. This was especially important over hundred years ago before modern tunneling techniques. The oldest tunnels in the London Underground is dug out by hand and even increasing the diameter by a feet means way higher labor cost.



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It is thought that because the Northern and Central lines are older and, for reasons of economy while building, the tunnels were dug directly beneath streets on the surface so they have more curves and bends. This may increase the likelihood of the loud noises happening.

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He added: 'The Central line has the loudest section out of all of the tube lines, and it basically gets as loud as almost 110dB. ' The Jubilee, Central, Victoria and Bakerloo lines were also recorded to be louder than 105dB on ten different occasions.

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Whatever direction you're coming from –whether via car, tube or walk – you'll know you're reaching King's Cross St Pancras when traffic will start slowing down and you'll even have to queue to cross the road. As such, seeing it top the chart as London's most stressful station is certainly not a surprise.

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London Underground is longer than the Paris Metro at 250 miles, compared to the parisians 133 miles.

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London contains many other secret tunnels, including government passages beneath Whitehall, deep-level tube shelters and communications and utility tunnels.

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If you encounter an emergency on a train If the train is at a station, it will stop. If it is in a tunnel, it will keep going to the next station. If the train is on a surface section, we may tell you to evacuate between stations. If this does happen we will stop other train movements and switch the power off.

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Roding Valley is the most lightly used station on the Underground. It is also one of the twelve tube stations not to have ticket barriers.

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Roding Valley is the most lightly used station on the Underground.

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During the Second World War, part of the Piccadilly line was used to store British Museum treasures. Around 55% of the London Underground is actually above the ground. On the columns at Temple station, there are small temple-shaped emblems at the bases.

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If you're seeking a cooler tube ride, you'll want to stick to the Jubilee or Waterloo Lines. With an average of 26.9C and 25C respectively, they recorded the lowest temperatures.

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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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When the first private tube companies began operating after 1863, they focused on north London, where there was more opportunity. 'The Underground chose to run extensions into the open semi-rural districts to the north instead, where they'd have less competition and sell more tickets,' says Murphy.

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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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With a vertical rise of 90 feet (27 m) and a length of 200 feet (61 m), the escalators at Angel station are the longest on the Underground, and in the United Kingdom.

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