17:22 24 February 2016
The new railway that will run beneath London will be named the Elizabeth Line in honour of the Queen, Boris Johnson has announced.
The announcement was made by the mayor of London as he visited Bond Street station with the monarch.
The trains, which will run starting December 2018, will link parts of Berkshire and Buckinghamshire to Essex when it opens in December.
Mr Johnson said it was "wonderful" the line had "such a significant name".
"The Elizabeth Line will provide a lasting tribute to our longest-serving monarch", the mayor said.
Meanwhile, the Queen visited the construction site where she met construction apprentices.
Transport Secretary Patrick McLoughlin, said that the name was “very fitting” given the Queen’s long association with UK transport.