So let's say you're in Control and decide not to make advance arrangements, and you run trains, and those trains encounter one (or all) of the four trees that did fall.
Now what do you do?
Your off-track teams could be anywhere (seeing as you think there's no need to make arrangements) and as pointed out earlier, you could now have:
- damaged train(s)
- possibly damaged track if the train(s) derailed
- possibly injured or dead crew and/or passengers
- blocked line(s)
- trains stuck behind
- and people stranded for a long time
So, how do you respond? Oh, and you now have people stuck at stations that can't now travel because of the above.