To solve the problem of soul-destroying traffic, the solution is to go three-dimensional, which could be done using flying cars or to go underground. “The other option is to ‘go down’ and build tunnels,” the website states, as these provide a fair amount of perks, including weatherproofing and the practically limitless layers of tunnels that could be built…much better than malfunctioning cars potentially plummeting from the sky.
But there is a problem. First, there’s the cost. Second, existing tunnels can’t support the Hyperloop pods. Musk’s new company is out to fix this.
“Currently, tunnels are really expensive to dig, with some projects costing as much as $1 billion per mile. In order to make a tunnel network feasible, tunneling costs must be reduced by a factor of more than 10,” explains the new FAQ. To make the tunnel more cost effective and efficient, its diameter is going to be less than 4 meters (14 feet) — whereas normal tunnels (one-lane road tunnels) are usually about 8.5 meters (28 feet) in diameter. To do this, Musk’s tunnel company would use what it calls an “electric sled.”
Musk’s Tunnel Boring Machine (TBM) — or Godot — is ready to start digging the first among these network of tunnels. However, as the TBM isn’t even as fast as a snail yet, Musk is determined to find ways to make tunnel digging faster — “to defeat the snail in a race” by increasing the TBM’s speed, which will also cut down costs