What colour is the Northern line on the Tube map?
Q: What colour is the Northern line on the Tube map?
A: The Northern line is coloured black on the Tube map.
Q: How many passengers does it carry a year?
A: The Northern line carries 206,734,000 passengers a year.
Q: Which section of deep-level tube line is the oldest?
A: The portion between Stockwell and Borough opened in 1890 and is the oldest section of deep-level tube line on the Underground network.
Q: How many stations are there in total on this line?
A: There are 50 stations in total on the Northern Line.
Q: What was its genesis as three separate railways?
A: The current complex arrangement of two main northern branches, two central branches and the southern route reflects its genesis as three separate railways, combined in the 1920s and 1930s.
Q: Are there any abandoned plans to extend this line further southwards or northwards?
A: Yes, there were abandoned plans from the 1920s to extend the line further southwards, and then northwards in the 1930s which would have incorporated parts of routes of two further companies.
Q: Is an extension currently under construction for this line?
A: Yes, an extension from Kennington to Battersea is currently under construction which may either give it a second southern branch or may see it split into separate distinct lines with their own identities.
