Road based TRs still exist, with the same formula, I think. The caravan TRs can be to:
*City states (we only receive gold, not sure if there's a default influence bonus or just when there's a mission for a TR); gold from TRs is based on quite a lot of things, that I don't know exactly; being on a river and coastal is good, the amount of avaiable resources also makes a difference.
*Other civs (we get gold + science, based on how many techs the receiving Civ has more than we do; the receiving Civ also receives gold and science from our TRs);
*Internal TRs, for food or production. Food routes require a granary in the city that starts the TR; prod routes require a workshop in the city that starts the TR. They give a flat amount of food/prod, based on the era.
TRs can be through water too, which requires Cargo Ships. They have double the yield of land TRs. Unfortunately, I don't think we can have such TRs from the Capital, due to the inland sea. Perhaps moving the red dot city 1W could be a good move, we lose 1 faith, but we can send a 8 food TR there from the Capital. Worth thinking about.
I think a land TR starting in Faith could reach Rome, but I don't think it could go much further (cities have a maximum TR range, that increase with certain buildings). With the yellow dot city, there wouldn't be much risk of barbs pillaging that route, so it could be a very nice gold + science boost.
We receive another TR slot when we tech Sailing, so perhaps that could be a tech goal.
*City states (we only receive gold, not sure if there's a default influence bonus or just when there's a mission for a TR); gold from TRs is based on quite a lot of things, that I don't know exactly; being on a river and coastal is good, the amount of avaiable resources also makes a difference.
*Other civs (we get gold + science, based on how many techs the receiving Civ has more than we do; the receiving Civ also receives gold and science from our TRs);
*Internal TRs, for food or production. Food routes require a granary in the city that starts the TR; prod routes require a workshop in the city that starts the TR. They give a flat amount of food/prod, based on the era.
TRs can be through water too, which requires Cargo Ships. They have double the yield of land TRs. Unfortunately, I don't think we can have such TRs from the Capital, due to the inland sea. Perhaps moving the red dot city 1W could be a good move, we lose 1 faith, but we can send a 8 food TR there from the Capital. Worth thinking about.
I think a land TR starting in Faith could reach Rome, but I don't think it could go much further (cities have a maximum TR range, that increase with certain buildings). With the yellow dot city, there wouldn't be much risk of barbs pillaging that route, so it could be a very nice gold + science boost.
We receive another TR slot when we tech Sailing, so perhaps that could be a tech goal.