This is another area that has me confused....
Early in the game, when I build a second city and it's farily close to my capital (first) city, the game says something like "congrats, you have connected your first two cities". But are they really??
When farms are built, the food seems to flow into the city (assuming that they are in the "fat cross".
And the same seems to be true for cottages.
But, maybe not for mines??
For example, in the game I'm working on, I built a copper mine about 2 squares from a city. But, I could not build axemen. I saw that when I hovered over the mine - it said "route required". So I sent a worker over here and built a road from the mine to the city. And VIOLA - I could build axemen - and just in time as the Barbs were getting pesky. And it seems that I could build axemen in my capital - even though I had not built a road to there yet.
So, when is a route required and when not? Do I need to build roads between cities? Connect cottages to cities? Farms?
I know there is a automated "build routes" function for workers. And when you set that on, they seem to build EVERYWHERE. Early on, I would like to keep a relative minimum number of workers (since they stop growth when being built) and let them concentrate on building farms & cottages and certain important mines (like copper, gold, quarries).
So the bottom line is WHEN are roads required?
Or maybe should I just set worker (s) to do it automatically?