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How are the safety aspects with steel or carbon fibers, considering that it will be close to roads and lots of people will have close access? Could the (near)
by berntb 13y ago
How are the safety aspects with steel or carbon fibers, considering that it will be close to roads and lots of people will have close access?
Could the (near) vacuum be compromised by any idiot with a hunting rifle and bullets optimized for piercing body armour? (At a minimum repairs and off time for a day or more.)
Can a kg of explosives put shrapnel through it and create a big crash? What is the safety distance for one of those Iranian self-fusing penetrators used in Iraq?
- nawitus 13y agoA bullet hole probably doesn't matter much. Air will be leaking inside anywhere and air has to be pumped out all the time in any case. I think you can create a big train crash with a kg of explosives, so that scenario is already possible.
- timmy-turner 13y agoAlso, railways are not really meant to be safe against attackers with physical access to it (so basically anyone). For example, the sensors/switches on a railway that cause a train to perform an emergency halt if the train driver misses a stop signal can be modified by anyone near it - no encryption, no locks (source: https://www.youtube.com/watch?v=xwaKYZfgY8k https://www.youtube.com/watch?v=xwaKYZfgY8k - only in German though). You don't even need explosives, a simple wedge welded on a rail would be enough. In the end, I don't think it is economically feasible to secure a railway against that (as well as any other kind of track). You have to make sure that nobody does stupid things like these.
- deleted 13y ago[deleted]