to combat the spread of the virus, by slowing the flow of passengers onto platforms. Measures included the imposition of queuing at ticket gates and turning off some escalators. In April, TfL trialled changes encouraging passengers to board London buses by the middle doors to lessen the risks to drivers, after the deaths of 14 TfL workers including nine drivers. This measure was extended to all routes on 20 April, and passengers were no longer required to pay, so that they did not need to use the card reader near the driver. On 22 April, London mayor Sadiq Khan warned that TfL could run out of money to pay staff by the end of April unless the government stepped in. Two days later, TfL announced it was furloughing around 7,000 employees, about a quarter of its staff, to help mitigate a 90% reduction in fare revenues. Since London entered lockdown on 23 March, Tube journeys had fallen by 95% and bus journeys by 85%, though TfL continued to operate limited services to allow "essential travel" for key workers. Without government financial support for TfL, London Assembly members warned that Crossrail, the Northern line extension and other projects such as step-free schemes at tube stations could be delayed. On 7 May, it was reported that TfL had requested £2 billion in state aid to keep services running until September 2020. On 12 May, TfL documents warned it expected to lose £4bn due to the pandemic and said it needed £3.2bn to balance a proposed emergency budget for 2021, having lost 90% of its overall income. Without an agreement with the government, deputy mayor for transport Heidi Alexander said TfL might have to issue a Section 114 notice - the equivalent of a public body going bust. On 14 May, the UK Government agreed £1.6bn in emergency funding to keep Tube and bus services running until September - a bailout condemned as "a sticking plaster" by Khan who called for agreement on a new longer-term funding model. On 1 June 2020, TfL released details of its emergency budget for 2020–2021, revealing it planned to reduce capital investment by 39% from £1.3bn to £808m, and to cut maintenance and renewal spending by 38% to £201m. Organisation TfL is controlled by a board whose members are appointed by the Mayor of London, a position held by Sadiq Khan since May 2016. The Commissioner of