And if that happened on a normal busy long train nothing would be any different with a guard on board who with probability would take ages to get there even in the highly unlikely circumstance that they were immediately aware of it and nearby.if someone was having a heart attack or choking the general public on the train would probably just sit and watch
Thameslink has not become any less safe since going guardless years ago according to the stats.
I'm not sure I buy much of rhetoric about guards. Several times I've been on trains with a guard (somewhere) on the long service and they've not intervened or done anything when trouble has kicked off.
If it was just two carriages I think guards would make a difference. But with the really long and really busy trains here one is pretty ineffective.
It's the opposite for the DLR, they don't have a driver but they do have a guard. Not that they call them a guard, but it's effectively the same role for most of the time unless there's a fault and they need to take control of the driverless system.Some services run without a guard it's true, the TFL DLR