Transport in London

London has an extensive and developed transport network which involves both private and public services. Journeys made by the public transport account for 37% of the journeys while private services accounted for 36%, walking 24% and cycling 2%. London's public transport network serves as the central hub for the United Kingdom in rail, air and road transport.

Operators
Unlike the Underground, which is the single system owned and operated by Transport for London, commuter railways in London are run by a number of separate train operating companies (TOCs). This results from a privatisation of British Rail in the 1990s that had split from the former railway operator British Rail into a number of smaller franchises in order to increase competition and allow railways to operate in a free market.

Among the rail firms that operates passenger services in London, a number are owned by foreign companies or by state-owned railways of other European countries. London Overground is contracted in a different way to other franchises that it is operated by a private company under contract to Transport for London. Heathrow Express is also unusual that it is not part of the National Rail franchising system.