Step-free access stations have lifts or ramps - or a combination of both - so that customers don't have to use escalators or stairs to move between the street and the platform. See our page on wheelchair access and avoiding stairs.
Currently 73 Tube stations, 58 London Overground stations and 6 TfL Rail stations have step-free access. All DLR stations are step-free.
Lifts or ramps will be built to provide step-free access at several other stations during the next ten years:
2017/18: Victoria, Bank (Waterloo & City line)
2018/19: Finsbury Park, Buckhurst Hill, Newbury Park, Paddington (Bakerloo line)
2019/20: Knightsbridge, Amersham, Harrow-on-the-Hill, Cockfosters, Mill Hill East, Osterley, South Woodford
2020/21: Bank (Northern line), Elephant & Castle (Northern line)
In 2016, an extra £200m was committed to creating step-free access on the Tube. This will help us take the total number of step-free Tube stations to 100.
Two new stations created as part of the Northern line extension - Nine Elms and Battersea Power Station - will also have step-free access.
All stations on the Elizabeth line will have step-free access. This includes the new stations in central London (currently being built by Crossrail Ltd) and existing stations in east and west London, currently served by TfL Rail, that will become part of the line.
2018/19: Forest Gate, Gidea Park, Goodmayes, Harold Wood, Maryland, Seven Kings and Manor Park
2018/19: Whitechapel (to and from London Overground platforms only)
2019/20 onwards: West Hampstead, Brondesbury Park, White Hart Lane
Step-free access projects don't always create level access between the platform and the train. But any new trains introduced as part of our work to improve the Tube should minimise the step and gap between platform and train.
In some places we are also providing portable ramps that can be positioned by station staff or building platform humps - permanently raised areas on the platform.