So now we know the Map size is not so small we think like in this Thread:
Today we see in the Live Chat that the Train go through the Map this Map looks much bigger then from the first gameplay Video. So in the Thread i have linked is say only 14 buildings from the half of the one side to the Train but now we know the Trainline is not always the Boarder of the Map so we have 14 Houses for maybe 1/4 of the Map length.This means we can build approximately 56 Houses from one side to the other side of the Map this is also small but not extrem small i think. I like the idee that ther goes a ready Trainline througt the Map and we can just build a Station there. Link of the Video is following its not there now!
Edit1: because some mistake