Figure 3-9a U.S. International Merchandise Trade Value by Transportation Mode: 2015

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NOTES: 1 short ton = 2,000 pounds. The U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics estimated...

Figure 3-8 Top 25 U.S. Foreign Trade Freight Gateways by Value of Shipments: 2014

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Table 3-5 Value and Tonnage of U.S. Merchandise Trade with Canada and Mexico: 2000, 2010, 2014 and 2015

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(Billions of current U.S. dollars and millions of short tons)

Figure 3-7 Value of U.S. Exports/Imports: 2004–2015

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SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, North American Transborder Freight Data

Table 3-4 Hazardous Materials Shipments by Hazard Class: 2007 and 2012

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Table 3-3 Hazardous Materials Shipments by Transportation Mode: 2007 and 2012

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Figure 3-6 Domestic Coal Shipments by Mode: 2012-2015

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SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Freight Analysis Framework, Version 4, April 2016.

Figure 3-5 Rail Coal Shipments: 2012–2015

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SOURCE: U.S. Energy Information Administration based on data from the Surface Transportation Board and other information, October 2015.

Figure 3-4 Field Production of Crude Oil (Thousand Barrels): January 2010-December 2015

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SOURCE: U.S. Energy Information Administration based on data from the Surface Transportation Board and other information, April 2016.

Box 3-B: Hydraulic Fracturing and U.S. Oil and Gas Production

The technique of hydraulic fracturing (also known as fracking) has been widely used to increase domestic oil and gas production in the United States. The process involves injecting a water solution deep into the bedrock formation using a well. Pressure from the water creates cracks in the...