A new commuter railway spanning London will be renamed the "Elizabeth Line" in honour of Queen Elizabeth II when it becomes fully operational in 2018, the London mayor said today.
The queen visited works for the "Crossrail" project in central London today with mayor Boris Johnson, who announced plans to rename the east-west line when it opens through central London.
"As well as radically improving travel right across our city, the Elizabeth line will provide a lasting tribute to our longest-serving monarch," Johnson said.
The line, costing 14.8 billion pounds ($20.1 billion, 18.9 billion euros), will link Heathrow Airport in the west to the financial city in the capital's east.
The queen plunged 28 metres on a lift to inspect works deep under the Bond Street station in the heart of London's shopping district.
She met workers on the mammoth project, which began in October 2009, and unveiled its purple logo -- the same colour she was dressed in.