London's Transport Commissioner, Peter Hendy CBE said:
"With London's population forecast to grow by one million people in the next 20 years, it is essential that we continue to invest in making our network more reliable and that we enable the London and UK economy to grow and prosper in the years ahead."
More top news
19-year-old Angus Mainland took a selfie with his mystery traveler at the weekend. He fell in love. But forgot to ask for her number.
The creature was spotted in Hampstead Heath, the London Underground and the South Bank.
The problems appear to have been caused by a power supply problem in Queen's Park in north west London, which has affected signalling.