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U.S.-NAFTA freight totaled $98.2 billion as all five major transportation modes carried more freight by value with North American Free Trade Agreement (NAFTA) partners Canada and Mexico in May 2017 compared to May 2016, according to the TransBorder Freight Data released today by the U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS) (Figure 2, Table 1).

The 9.4 percent rise from May 2016 is the seventh consecutive month in which the year-over-year value in current dollars of U.S.-NAFTA freight increased from the same month of the previous year (Figure 1).

Freight by Mode

The value of commodities moving by pipeline increased 60.3 percent, vessel by 28.4 percent, air by 8.7 percent, rail by 7.0 percent, and truck by 5.0 percent (Figure 2, Table 2). In contrast with recent months, there was only a modest year-over-year increase in the price of mineral fuels (3.8 percent). In May, the increase in the value of freight by pipeline and vessel more closely reflected a greater volume of mineral fuels moved rather than an increase in the price of those commodities.

Trucks carried 63.4 percent of U.S.-NAFTA freight and continued to be the most heavily utilized mode for moving goods to and from both U.S.-NAFTA partners. Trucks accounted for $32.2 billion of the $53.5 billion of imports (60.2 percent) and $30.1 billion of the $44.7 billion of exports (67.3 percent) (Table 2).

Rail remained the second largest mode by value, moving 15.5 percent of all U.S.-NAFTA freight, followed by vessel, 6.4 percent; pipeline, 5.7 percent; and air, 3.7 percent. The surface transportation modes of truck, rail and pipeline carried 84.7 percent of the total value of U.S.-NAFTA freight flows (Table 2).

U.S.-Canada Freight

From May 2016 to May 2017, the value of U.S.-Canada freight flows increased by 11.4 percent to $51.2 billion as the value of freight on all five major modes increased from a year earlier. The value of freight carried on pipeline increased by 66.0 percent, vessel by 26.0 percent, rail by 9.8 percent, air by 9.7 percent, and truck by 5.4 percent. The percent change in commodities moved by pipeline and vessel reflects an increase in the volume of mineral fuels moved year-over-year and only a modest (3.8 percent) increase in the price of those commodities (Figure 3, Table 3).

Trucks carried 57.8 percent of the value of the freight to and from Canada. Rail carried 16.4 percent followed by pipeline, 10.5 percent; air, 4.5 percent; and vessel, 3.8 percent. The surface transportation modes of truck, rail and pipeline carried 84.7 percent of the value of total U.S.-Canada freight flows (Table 3).

U.S.-Mexico Freight

From May 2016 to May 2017, the value of U.S.-Mexico freight flows increased by 7.2 percent to $47.0 billion as the value of freight on four major modes increased from a year earlier. The value of commodities moved by vessel increased by 29.5 percent, air by 7.0 percent, truck by 4.8 percent, and rail by 3.8 percent. The percent change in commodities moved by vessel reflects an increase in the volume of mineral fuels moved year-over-year. The value of commodities moved by pipeline decreased by 4.1 percent due to a decrease in volume of mineral fuels moved (Figure 4, Table 4).

Trucks carried 69.6 percent of the value of freight to and from Mexico. Rail carried 14.5 percent followed by vessel, 9.2 percent; air, 2.8 percent; and pipeline, 0.6 percent. The surface transportation modes of truck, rail and pipeline carried 84.7 percent of the value of total U.S.-Mexico freight flows (Table 4).

Commodities

In May 2017, the top commodity category transported between the U.S. and Canada was vehicles and parts, of which $5.5 billion, or 55.8 percent, moved by truck and $4.1 billion, or 41.2 percent, moved by rail (Figure 5). The top commodity category transported between the U.S. and Mexico in May 2017 was also vehicles and parts, of which $4.1 billion or 46.6 percent moved by truck and $3.7 billion or 42.3 percent moved by rail (Figure 6).

Reporting Notes

BTS press releases and the BTS website define surface transportation modes as truck, rail and pipeline. See North American TransBorder Freight Data on the BTS website for additional data for surface modes since 1995 and all modes since 2004. The category of all modes of transportation cited in the following tables includes freight movements by truck, rail, vessel, pipeline, air, other, and unknown modes of transport. 

 Data in this press release are not seasonally adjusted and are not adjusted for inflation. Additional summary data adjusted for inflation and exchange rates can be found on the BTS website under TransBorder Indexed Freight Flow Data. The Bureau of Labor Statistics indexes used in the adjustments for inflation and exchange rates might be revised in each of the three months after original publication. For previous statistical releases and summary tables, see TransBorder Releases. See TransBorder Freight Data for data from previous months, and for additional state, port, and commodity data. BTS has scheduled the release of June TransBorder numbers for Aug. 24.