International Trade Routes: Build your cities into hubs of international trade by land and sea, creating great wealth and prosperity for your people, while also spreading religion, cultural influence, and science. The number of trade routes increases through the advancement of economics and technologies, the creation of wonders, and the unique abilities of your civilization. Will you connect to a closer city for a lower payoff and a safer route, choose a longer route with more risk for the bigger payoff, or perhaps point your trade route inward, sending vitally important food and production to the far corners of your own empire?
Source: http://www.civilization5.com/bravenewworld/
This sounds really interesting, how do you think this will work in finer detail?
It would be really nice if you could have one city huge in production but lacking food, basically just sacrificing one city and send all it's excess food to that production city and make it even stronger.
I do worry that the AI wont be able to properly use this mechanic though.