Trade Nodes are one of the parts of Commerce system in BOCproject,
The Trade Nodes determine income from world trade based on the Node's power.
Trade Nodes form part of the Regions system. The world of BOC is made up of hex tiles, so when one player creates a town or city, this new settlement has its own region that consists of some of these hex tiles; the sum of all regions from a civilization forms its territory.
Each region has its own Trade Node that is placed on the settlement of the region.
The Node Power is determined by the buildings, traits, knowledge and commercial deals, while income is calculated from the Node power divided by the total power of the trade nodes from the area of influence.