I doubt tube rupture is going to be an issue. The plan is to put it underground. The boring company is developing the tech for that now. Those tubes are good for some 6 atmospheres, and there isn't a good supply of working fluid underground.
Pod levitation fails = Skids to a stop / might have landing or crash gear
Pod compressor fails = Pod slowed by cushion of air.
Pod depressurize = Oxygen masks deploy
Oxygen masks fail = Same as plane
Tube fails = Pod slowed by cushion of air.
Tube fails behind moving pod destined to dead end of tube and breaks fail = pod accelerated into wall by in rush of air.
Solution = Make the tube a continuous loop or have long narrow and ending sections that restrict by-pass air, overwhelming the compressor and, creating an air cushion to form ahead of the pod, forcing deceleration.
The tube vacuum could also be used to clear our European-style gas attacks in a matter of seconds, in both the pod cabins and stations.
Pretty good deal.
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is bad for digestion.
I doubt tube rupture is going to be an issue. The plan is to put it underground. The boring company is developing the tech for that now. Those tubes are good for some 6 atmospheres, and there isn't a good supply of working fluid underground.
Pod levitation fails = Skids to a stop / might have landing or crash gear Pod compressor fails = Pod slowed by cushion of air. Pod depressurize = Oxygen masks deploy Oxygen masks fail = Same as plane Tube fails = Pod slowed by cushion of air. Tube fails behind moving pod destined to dead end of tube and breaks fail = pod accelerated into wall by in rush of air. Solution = Make the tube a continuous loop or have long narrow and ending sections that restrict by-pass air, overwhelming the compressor and, creating an air cushion to form ahead of the pod, forcing deceleration. The tube vacuum could also be used to clear our European-style gas attacks in a matter of seconds, in both the pod cabins and stations. Pretty good deal.