Maybe I'm overcomplicating this: if the vehicles were small, well-spaced and able to stop in the event of a failure ahead of them then the impact that any one passenger could have is equivalent of getting in a car and causing a bad collision on a motorway.
Obviously a Very Bad Thing, but if we feel it necessary to protect against that then we might as well write off transport altogether!
Anyway, enough speculation from me - I'll patient wait for Elon to finish his breakfast and press 'go' on the release.(Very frustrating!)
Wouldn't an explosion in a tunnel two metres wide be likely to destroy the tunnel? In that case, it'd be more akin to destroying a motorway/bridge. Road's going to be out of action for a while.
Obviously a Very Bad Thing, but if we feel it necessary to protect against that then we might as well write off transport altogether!
Anyway, enough speculation from me - I'll patient wait for Elon to finish his breakfast and press 'go' on the release.(Very frustrating!)