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:
“Scholars and artists thrown together are often annoyed at the puzzle of where they differ. Both work from knowledge; but I suspect they differ most importantly in the way their knowledge is come by. Scholars get theirs with conscientious thoroughness along projected lines of logic; poets theirs cavalierly and as it happens in and out of books. They stick to nothing deliberately, but let what will stick to them like burrs where they walk in the fields.”
—Robert Frost (1874–1963)
“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)
“I am so tired of taking to others
translating my life for the deaf, the blind,
the “I really want to know what your life is like without giving up any of my privileges
to live it” white women
the “I want to live my white life with Third World women’s style and keep my skin
class privileges” dykes”
—Lorraine Bethel, African American lesbian feminist poet. “What Chou Mean We, White Girl?” Lines 49-54 (1979)