The one-kilometre tunnel, or hyperloop, which is used for transportation of passengers through underground vacuum tubes, is being built by the Boring Company, one of Elon Musk's enterprises along with Tesla Inc and SpaceX, APA reports quoting Sputnik.
On 28 December, Elon Musk tweeted that Boring Company was finishing its first commercial tunnel in the city of Las Vegas, which is to be completed in 2020.