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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Despite its name, only 45% of the system is under the ground: much of the network in the outer environs of London is on the surface.
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.
That part of the Overground is part of the old East London line of the Underground. It runs in tunnels to Whitechapel then comes above ground to Dalston or Hackney and beyond. The Overground is handy to use for some journeys, so don't forget to include it in your trip planning.
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. It also may result from the fact that London is quite hilly and trains don't like going up hills, so the tube goes through the hill. Some stations are above ground.
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).
London Overground remains one of the most reliable rail networks in the country with its Public Performance Measure Moving Annual Average (the industry's key long-term performance indicator) being 94.7, against a national score of 88.5.
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.
The current operator, London Underground Limited (LUL), is a wholly owned subsidiary of Transport for London (TfL), the statutory corporation responsible for the transport network in London.
The Night Tube and London Overground Night Service, often referred to simply as Night Tube, is a service pattern on the London Underground (Tube) and London Overground systems which provides through-the-night services on Friday and Saturday nights on the Central, Jubilee, Northern, Piccadilly, and Victoria lines, and ...