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2. The flow of goods

This map shows the flow of all domestic freight between states in 2015 using data from the Freight Analysis Framework. The arrows represent the origin and destination of goods shipped between states. Thicker and darker arrows indicate higher volume (each commodity is scaled relative to the highest volume between any two states, so arrow size isn't comparable across commodities).

Note: The Standard Classification descriptions can be deceptively narrow but often cover large groups of goods. Complete documentation is available here; Data: Center for Transportation Analysis; Graphic: Chris Canipe / Axios

Go deeper: The flow of goods between states

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