Lines
As of 2012, the length of the network 402 kilometres (250 mi). In 1971/72 it was remeasured in kilometres using Ongar as the zero point. The table below lists each line, the colour used to represent it on Tube maps, the date the line became operational and the first section opened (not necessarily under the current line name), the date the line gained its current name (in some cases originally with the word "Railway" rather than "line"), and the type of tunnel used in the central area.
| Name | Map colour | First operated |
First section opened * |
Name dates from |
Type | Length /km |
Length /miles |
Stations | Journeys per annum (000s) |
Average journeys per mile (000s) |
|---|---|---|---|---|---|---|---|---|---|---|
| Bakerloo | Brown | 1906 | 1906 | 1906 | Deep level | 23.2 | 14.5 | 25 | 104,000 | 6,617 |
| Central | Red | 1900 | 1856 | 1900 | Deep level | 74 | 46 | 49 | 199,000 | 3,990 |
| Circle | Yellow | 1884 | 1863 | 1949 | Subsurface | 22.5 | 14 | 27 | 74,000 | 4,892 |
| District | Green | 1868 | 1858 | 1868–1905 | Subsurface | 64 | 40 | 60 | 188,000 | 4,322 |
| Hammersmith & City | Pink | 1863 | 1858 | 1988 | Subsurface | 26.5 | 16.5 | 28 | 50,000 | 2,778 |
| Jubilee | Silver | 1979 | 1879 | 1979 | Deep level | 36.2 | 22.5 | 27 | 127,584 | 5,670 |
| Metropolitan | Corporate Magenta | 1863 | 1863 | 1863 | Subsurface | 66.7 | 41.5 | 34 | 58,000 | 1,294 |
| Northern | Black | 1890 | 1867 | 1937 | Deep level | 58 | 36 | 50 | 206,734 | 5,743 |
| Piccadilly | Dark Blue | 1906 | 1869 | 1906 | Deep level | 71 | 44.3 | 52 | 176,177 | 3,977 |
| Victoria | Light Blue | 1968 | 1968 | 1968 | Deep level | 21 | 13.25 | 16 | 183,000 | 12,175 |
| Waterloo & City | Teal | 1898 | 1898 | 1898 | Deep level | 2.5 | 1.5 | 2 | 9,616 | 6,410 |
| . | ||||||||||
Until 2007 there was a twelfth line, the East London line, but was transferred to the London Overground network in May 2010 following the opening of the extensions.
Read more about this topic: London Underground Infrastructure
Famous quotes containing the word lines:
“... when I awake in the middle of the night, since I knew not where I was, I did not even know at first who I was; I only had in the first simplicity the feeling of existing as it must quiver in an animal.... I spent one second above the centuries of civilization, and the confused glimpse of the gas lamps, then of the shirts with turned-down collars, recomposed, little by little, the original lines of my self.”
—Marcel Proust (1871–1922)
“GOETHE, raised o’er joy and strife,
Drew the firm lines of Fate and Life,
And brought Olympian wisdom down
To court and mar, to gown and town,
Stooping, his finger wrote in clay
The open secret of to-day.”
—Ralph Waldo Emerson (1803–1882)
“Wittgenstein imagined that the philosopher was like a therapist whose task was to put problems finally to rest, and to cure us of being bewitched by them. So we are told to stop, to shut off lines of inquiry, not to find things puzzling nor to seek explanations. This is intellectual suicide.”
—Simon Blackburn (b. 1944)