What do the codes mean on London Underground?


What do the codes mean on London Underground? Most tube stations will use a numbered system from 1-7, with each number representing a different type of cleaning job. The categories range from bio-hazardous blood on the floor – code one – to a job involving urine or faeces – code two – and even someone throwing up on a platform – code three.


What is the black line in London?

The Northern line is a London Underground line that runs from North London to South London. It is printed in black on the Tube map. The Northern line is unique on the Underground network in having two different routes through central London, two southern branches and two northern branches.


What zone is Covent Garden?

Covent Garden is a London Underground station serving Covent Garden and the surrounding area in the West End of London. It is on the Piccadilly line between Leicester Square and Holborn stations and is in Travelcard Zone 1.


Is London Tube safe at night?

Generally, the London Underground is safe to travel at night. Crime rates are relatively low, and many underground trains have a large number of passengers until at least 1am every night. Each underground train have CCTV cameras covering every inch of space.