As I said, just a "incursion".
So lets go directly to the point.
I saw some cities in the Grand Campaign have a railroad workshop building in them, but I never found out for what exactly they were built for.
The thing is, that in the Drang Nach Osten campaign, some other big cities have a great icon detailing they have those same railroad workshops, and they explain they are to produce +3(if I remember well) points to the railroad pool.
Is the Grand Campaign version r. workshops fulfilling the same duty as those in Drang Nach Osten??
Would be good to know, so maybe I can find a way to finish my railroad madness.