Paralympian Tanni Grey-Thompson has called for a more flexible transport system for disabled people, following the success of London 2012.
More than £7 billion was spent improving the transport infrastructure ahead of the Games.
Baroness Grey-Thompson, who is also a member of the Transport for London Board, said it showed staff could cope with many more disabled people than they are allowed to under the current rules.
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The high of 35C was recorded on a Bakerloo line train between Piccadilly Circus and Oxford Circus at 2pm.
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After years of political manoeuvring over the future expansion of Heathrow Airport, there has been an important development this lunchtime.