Since the trains underground run through a series of tunnels, many people (Londoners and visitors alike!)refer to it as the tube. Despite this name, a lot of the London Underground network is above ground when you travel, particularly outside of central London.
In America metro is usually short for metropolitan area (a big city and its area of influence). SUMMARY (simplified) = the tube (or the underground) = the subway / the train.
The London Underground is often called the Tube because of the shape of the tunnels. The London Underground is one of the oldest metro systems in the world, opening in 1863. When the Central Line Railway opened in 1900, it was called the Twopenny Tube, referencing the price of a ticket.
In America the first metro was built in New York, and it was called SUBWAY because it was built mostly under the streets (sub= under / way= road), since Manhattan street plan is quite a regular grill and it was easy to do so. But most everywhere else they usually call it simply the TRAIN.
because of the metaphorical implications of security and value in the hard bivalve shell and the concealed pearl. Its associations with London through Thames estuary oyster beds and the major relevance of the popular idiom the world is your oyster were also significant factors in its selection.
Similar to the New York Subway or the Paris Metro, the London Underground is London's series of (largely) underground trains that run a regular service throughout the city. Since the trains underground run through a series of tunnels, many people (Londoners and visitors alike!)refer to it as the tube.
THE world's first metro, now the world's oldest system, is the London Underground in England, which is more commonly known as the Tube, which was opened in 1863. At 402 kilometers in length the London Underground is also the world's second longest metro system.
“Pre-pandemic, the Tube required the least subsidy of almost any city. From a day-to-day operations point of view, it was covering its own costs. That is quite unusual for a European or North American metro. “But when the pandemic hit, the percentage increase in subsidy went through the roof.