Just derailing a train in a long tunnel (this one is about 29km long) can take a long time to repair and that doesn’t take into account what the explosions did to the walls etc.
…On November 30, unknown persons blew up a freight train on the Itykit-Okushikan section, consisting of 50 cars (41 tanks with diesel fuel and 3 tanks with aviation fuel). According to the locomotive crew, during the passage of the tunnel the tension was relieved and the train slowed down. While the team members were figuring out what was going on, heavy smoke began to form in the tunnel - the team secured the train and left the tunnel…
Just derailing a train in a long tunnel (this one is about 29km long) can take a long time to repair and that doesn’t take into account what the explosions did to the walls etc.
Gotthard: World’s longest rail tunnel shut for months after freight crash
I get that, but thats still not as bad as a destroyed tunnel.
Either is better than nothing, but it’s not clear which it is
Edit: and if they pulled off both, such as blowing the tunnel and then having the train crash into it, well that’s even better.
Update: