Well there are 2 trains in Dublin, or should be two
14:10 from Belfast and 15:20 to Belfast
The 15:20 suffered a failure chances are it would have to be brought to platform 2, emptied and then towed out so the locomotives could swap over or be taken to be repaired in the shed
Yes they could have swaped the 15:20 passengers over and left without you since P3 is normally empty up until 5pm
Odds are the 16:50 is waiting for the 15:20 to get out of the way
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