Comment by 1718627440

That sounds like a reasonable statement, but actually you do need to place punctuality or costs over safety at some point. If you want to chase absolute safety, you can dump infinite money in it or just not operate a train network. There must be such a thing as a socially accepted safety level, otherwise you simply don't do that thing. That's not limited to railways, but to everything you do. In the end humans are still mortal fallible beings.