> And what are the systemic practices in place that led to people not following the official protocol?

I guess we'll find out. Apparently one of two drivers who were given the go ahead for normal operations requested additional confirmation because he or she (rightly) thought go-slow was the expected response for transit resumption under the fallback protocol. Some incompetence in the control authority Adif, then, but I'm sure that'll be the focus of the inquiry they will no doubt have.

I'm so fucking tired of you people constantly trying to reduce human accountability after accidents like this that claim lives. It's always the fault of the system and never the fault of any people. As if we are all just cogs in a machine that is controlled by no-one. It is your fatalistic worldview that is directly causing accidents like this. How many more people have to die before we can fix things? Just stop.