Khan made the comments while visiting the Siemens Mobility facility in Goole, East Yorkshire, where half of the 94 new Piccadilly Line Tube trains are due to be built.
The much-needed new trains, which passengers will see on the Piccadilly Line from 2025, will improve frequency, reliability and capacity on the line, replacing the previous 1970s-built fleet.
However, TfL lost a huge amount of its revenue due to the Covid-19 pandemic, which saw its income from ticket sales drastically reduced as passengers avoided public transport and many shifted to home working.
Despite the scrapping of social distancing rules, figures from February showed that Tube passenger levels are only about 60 per cent of pre-pandemic levels, with buses reaching around 75 per cent of the pre-Covid rate.
In January 2021, TfL admitted it would need years of additional financial support to keep it afloat and later that year warned that more than 100 bus routes might need to be cu...