Flow maps are a mix of maps and flow charts, that show the movement of things from one location to another, such as the number of people in a migration, the amount of goods being traded, or the number of packets in a network. This map was created by Telegeography, Inc. This map shows countries with traffic flows between them represented as smoothly curving red lines. The thickness of the lines is proportional to the annual volume of traffic between those two countries, measured in millions of minutes of voice telecommunication.
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