I stayed up late to watch this mess on H&I, but sorry I wasted the time.
A train dispatcher certainly uses a computer to line a route for a train, but there are interlocks to prevent exactly what is depicted in this episode. It's automated, so the second train would not have gotten a signal to proceed until the first train had cleared. (At slow times the dispatcher could line a route for miles and take a nap and there would be no danger.)
But this show didn't even give a nod to reality because there were no signals, they just had the engineers screaming at each other on the radio to get out of the way. Yeah, sure buddy! If they hadn't died, they surely would've been fired immediately. I can not suspend my disbelief for that nonsense.
Then Charlie shows up with his swarmbots which can magically climb over metal lattices, random debris, and other unknowns inside a rail coach despite being only about 6-8 inches long. But where in the world did all that clutter come from? It's a hollow metal tube with seats. It's not stuffed full of all that garbage that they showed.
I didn't pay much attention to the drama fabricated by these overly smart whiz kids, but I did wonder why they didn't just break out their industrial strength Sawzall and cut a hole in the passenger coach next to the victims? I mean, if they can go dashing into a HazMat hot zone without the IC noticing (what unified command??) and without breathing apparatus, I guess there's really no danger of explosion after all.
Bleh, what waste of electrons and an hour of my life that I'll never get back.