Date opened
Annual passenger numbers
1.35 billion
Length of network
Busiest station
Waterloo - 100.3 million passengers per year
Annual train km travelled
83.6 million km
Average train speed
Proportion of network in tunnels
Longest continuous tunnel
East Finchley to Morden (via Bank) - 27.8km
Total number of passenger escalators
Station with most escalators
Waterloo - 23
Longest escalator
Angel - 60 metres
Shortest escalator
Stratford - 4.1 metres
Total number of passenger lifts
Number of moving walkways
Four, two each at Waterloo and Bank
Deepest lift shaft
Hampstead - 55.2 metres
Shortest lift shaft
King's Cross St. Pancras - 2.3 metres
Step-free stations
Station with most platforms
Baker Street - 10
Highest station above mean sea level
Amersham (Metropolitan line) - 147 metres
Furthest station from central London
Chesham (Metropolitan line) - 47km to Aldgate
Longest distance between stations
Chesham to Chalfont & Latimer (Metropolitan line) - 6.3km
Shortest distance between stations
Leicester Square to Covent Garden (Piccadilly line) - 0.3km
Longest direct journey
Epping to West Ruislip (Central line) - 54.9km