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:
“The opera isn’t over till the fat lady sings.”
—Anonymous.
A modern proverb along the lines of “don’t count your chickens before they’re hatched.” This form of words has no precise origin, though both Bartlett’s Familiar Quotations (16th ed., 1992)
“Your letter is come; it came indeed twelve lines ago, but I
could not stop to acknowledge it before, & I am glad it did not
arrive till I had completed my first sentence, because the
sentence had been made since yesterday, & I think forms a very
good beginning.”
—Jane Austen (1775–1817)
“While you are divided from us by geographical lines, which are imaginary, and by a language which is not the same, you have not come to an alien people or land. In the realm of the heart, in the domain of the mind, there are no geographical lines dividing the nations.”
—Anna Howard Shaw (1847–1919)