You can get information about accessible transport from DisabledGo and Inclusive London. Public transport providers like Transport for London and others also offer information about accessing their services.
1 Records in Accessibility information filtered by Key words "travel support".
Transport for London (TFL) - The Travel Support Card
Telephone: 0343 222 1234
Description: The Travel Support Card is a free card that is issued by Transport for London (TFL) to assist anyone who finds travelling difficult, might not be used to travelling on their own or may have a hidden disability and would require help or support.