In the event of rapid decompression in a chamber, due to a natural disaster, explosion.. etc. what prevention systems could be implemented to deter entire system failure?

If an unlikely tube ruptures occurs, sensors activate a safety routine to reduce risks.  The damaged section is isolated with gate valves, traffic rerouted, and then air is admitted all along the tube via apertures sized and spaced such that the rate of capsule deceleration is high yet survivable.  The air between the capsules reduces the likelihood of collisions as they slow down and encounter the inrush of air from the rupture.  As a network, with decentralized controls, and high redundancy total failure is very improbable.  Deterrents include: cameras and microphones on the tubes. 

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