"Hello main office, I have seen a rumor on Instagram that a bridge has collapsed. Should I stop all traffic through this region due to this shitpost?"
"Hi please don't - we've had three different trains go through there already. There is no loss of signaling in the area, electrical and infrastructural connections are responding appropriately. We will be sure to contact other drivers and let them know about this"
Your method involves the loss of at least one train before action is taken.