The London Underground The London Tube is a public rapid transit system serving London with rural. That opened in 1863 and the first line to operate electric traction trains in 1890. The London tube has 11 lines, and it can carried 1.265 billion passengers. that is a busiest metro system. The tube has 270 stations and 250 miles (400 km) of route. Less than 10% of Tube stations lie to the River Thames and 45% of the system is actually 'underground' in tunnels. Later, smaller circular tunnels were added the subway. The early lines were marketed 20th century on maps. The private companies were merged in 1933 to London Passenger Transport Board. The managment of tube is a wholly related by (LUL). The LUL is subsidiary of Transport for London (TfL). The term 'Tube' often used in official publicity now embrace the whole Underground system. About 92% of operational expenditure is covered by passenger fares. The travel card ticket was introduced in 1983 and Contactless card payments were introduced in September 2014. The LPTB was a prominent patron of art and design, commissioning many new station buildings, posters and public artworks in a modernist style. The Tube maps, designed by Harry Beck in 1931. London Underground branding is built around the symbols of the roundel and the Johnston typeface, created by Edward Johnston in 1916.