London Underground with smaller trains that run in two circular tunnels ("tubes") with a diameter about . These lines have the exclusive use of a pair of tracks, except for the Piccadilly line, which shares track with the District line between Acton Town and Hanger Lane Junction and with the Metropolitan line between Rayners Lane and Uxbridge; and the Bakerloo line, which shares track with London Overground services north of Queen's Park. Fifty-five per cent of the system runs on the surface. There are of cut-and-cover tunnel and of tube tunnel. Many of the central London underground stations on deep-level tube routes
London Bridge station service in trains per hour (tph) is: The typical weekday off-peak services in trains per hour (tph) is: The Thameslink timetable through London Bridge was introduced in May 2018. The typical weekday off-peak service in trains per hour (tph) is: The Underground station is served by the Jubilee line and the Bank branch of the Northern line. In , it was the station on the network with million users. It is the only station on the London Underground network with "London" in its name (while the NR termini are named, for instance, "London Waterloo" the Underground station is simply named