TfL also said a new bus route, provisionally numbered 10, will operate between Essex Road and Holborn.
Passenger data from Transport for London shows bus demand in the capital fell by 1.5% last year.
London Fire Brigade said eight fire engines and around 60 firefighters are on the scene.
Single fares are to remain at £1.75 for a further four months before rising in November, TfL says.
Hammersmith and Fulham Council now plans to focus on repairs to maintain walking and cycling access.
Jane Ouartsi suffered severe injuries when she was crashed into by a bike ridden by a 10-year-old boy.
Sir Sadiq Khan says he is working to help drivers cope with the hot weather, a move welcomed by unions.
The Covent Garden attraction, which welcomed 450,000 visitors last year, will remain open throughout.
A new study suggests estimated deaths linked to toxic air in London fell by about 40% in five years.
