An underwater railway line from the USA to China: is it realistic?
source: Wikipedia
InterBeringA 13,000km-long railway line from China to the USA, running partially underwater to cover the Bering Strait. It would be the finishing touch of the Belt and Road initiative, as it would connect the world by rail. The project has been discussed since 2014, but seems to have more people talking than actually building.
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Track gauge isn’t a problem as the Chinese are building gauge changing trains for the Trans-Siberia Line and for China to Pakistan and India on broad gauge railways.Spanish Talgo train manufacturer invented gauge changing trains which uses hydraulic rams to adjust the distance between the wheels that can run on wider Spanish Iberian and French gauge tracks.Napoleon invaded Spain so in the past different gauge trains had to terminate at Canfranc station near the border between Spain and France.
A two-level tunnels seems nonsense to me, just as a high-speed passenger link between two largely uninhabited areas Eastern Siberia and Alaska. Reduce the project to freight-dedicated and a few tourist trains on the same route, and it should be further evaluated. What is the position of that Bering tunnel corporation therein, profit on ways of right?