And while the UK's railway network continues to chug along and the £50 billion, 330-mile HS2 line project inches forward, Japan's Shinkansen has continued to speed ahead. -- bullet trains at a railway museum, drove the Shinkansen briefly in the summer of 1967 as part of his training as a railway operations engineer Japan started building a high-speed line during the Second World War, but construction was halted in 1943, before it was completed in time for the Tokyo Olympics in October 1964 Japan started building a high-speed line during the Second World War, but construction was halted in 1943, before it was completed in time for the Tokyo Olympics in October 1964 Japan started building a high-speed line during the Second World War, but construction was halted in 1943, before it was completed in time for the Tokyo Olympics in October 1964 -- sailing above the sea.' Japan started building a high-speed line during the Second World War, but construction was halted in 1943 as funds ran out. -- for the Tokyo Olympics in October 1964. The Shinkansen renewed interest in high-speed rail across the world, notably in Europe.