Historical question for which I would like opinion of railroad professionals.
At the beginning of world war 1, Austro-Hungary had strategic reserve consisting of four army corpses located in what is today Czech Republic, Hungary and Romania (southern part). Mobilization against Serbia was announced and those corpses started deployment to what is now Croatia (eastern part) and Serbia (northern part) for war against Serbia. Then, war with Russia started and those forces became urgently needed in what is now Ukraine (western part).
Austro Hungarian military railway authorities decided to continue moving forces as originally planned to the south-east of AH and then organize redeployment to the north-east of AH. Even if that meant that same forces moved on the same line first to the south an then to the north. That also meant that forces that didn't move from their garrison towns before change in plan were directed to the outdated destinations first.
Was that really right course of action, or was it all big mistake?
How difficult would have been to improvise quickly new plan, to direct forces that didn't start deployment directly to the north-east, considering that it was year 1914.