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   Footage of the high-speed ride showed a live display in each carriage
   keeping a constant record of the velocity as passengers watched the
   blur through aeroplane-sized windows.
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   half, from 90 to 40 minutes.

   Japan’s reputation for high-speed rail started in 1964 with the
   unveiling of its first bullet train coinciding with the Summer
   Olympics.
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   The central line in the country – the Tokaido Shinkansen – is the
   world’s busiest high-speed rail, carrying 151 million passengers each
   year.

   Britain’s HS1 line connecting London with the Channel Tunnel through
   Kent  allows speeds of up to 186 mph (300 kmh) in its fastest section
   and the planned HS2 could reach 225 mph (360 kmh).

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