12 Facts About Northern line

Northern line is a London Underground line that runs from North London to South London.

The Northern line is unique on the Underground network in having two different routes through central London, two southern branches and two northern branches.

The Northern line crossed open countryside and ran mostly on viaduct from Golders Green to Brent and then on the surface, apart from a short tunnel north of Hendon Central.

The Northern line taken over would be extended beyond Edgware to Brockley Hill, Elstree South and Bushey Heath with a new depot at Aldenham.

The Northern line gained the nickname "Misery Line" due to its perceived unreliability.

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In 1995, a comprehensive refurbishment of the Northern line began – including track replacement, power upgrades, station modernisation and the replacement of older rolling stock with new 1995 Stock thanks to a public–private partnership deal with Alstom.

The Northern line was scheduled to switch to automatic train operation in 2012, using the same SelTrac S40 system as used since 2009 on the Jubilee line and for a number of years on the Docklands Light Railway.

Work on the Northern line was contracted to be completed before the 2012 Olympics.

In September 2021, the Northern line was extended to serve the redevelopment of Battersea Power Station.

Since 2016, the Northern line has operated Night Tube services on Friday and Saturday nights between the Edgware and High Barnet termini and Morden, via the Charing Cross branch only.

The few 1956 Stock trains were briefly replaced by 1962 Stock transferred from the Central line in 1995, before the entire Northern line fleet was replaced with 1995 Stock between 1997 and 1999.

Today, all Northern line trains consist of 1995 Stock in the Underground livery of red, white and blue.