3 ms·

The proposal calls for the line to built alongside I-5, which requires government involvement.

• btilly 13y ago
  Not alongside. On top of. And all of it needs to be approved for safety in earthquakes. If you're traveling at 600 mph, you do not want to have that tunnel unexpectedly move even a foot sideways during an earthquake.
  • wavesounds 13y ago
    Not to be nitpicky but if you haven't driven the I-5 theres substantial room between each direction of the freeway so I don't think it will actually be above traffic if that's your concern.
    • dredmorbius 13y ago
      At 700+ MPH you'll need more than 100' of freeway median to contain potential incident fallout.
      • Retric 13y ago
        Depends on how strong the tunnel is. Assuming your taking 3/4 atmospheric difference your starting at ~11 pounds per square inch add in a 3-5x safety factor and that tunnel would be one tough son of a bitch. Not to mention it's got to be really close to a strait track so your more dealing with scraping forces than a direct strike.
        • jacquesm 13y ago
          Does the minimum bending radius of the tube match the centerline of the highway? If not that might be a real problem.
          • ash 13y ago
            Hyperloop proposal contains detailed map of the whole route. Sometimes it follows the highway, other times it deviates from it.
    • btilly 13y ago
      I have driven the I-5, but good point. And the diagrams that you'll find on p28-29 of the presentation suggest that the supports would definitely fit on the median. You still need government permission to use the median like that.
    • Aloisius 13y ago
      There are overpasses all along I-5. I seriously doubt you can put a 20 ft elevated tube under them and you certainly don't want them in a place where a truck can easily slam into the support pillars.