U.S. Hazardous Materials Shipments by Transportation Mode, 2017

KEY: S = withheld because estimate did not meet publication standards. 

^a Truck as a single mode includes shipments that went by private truck only, for-hire truck only, or a combination of both.

^b Private truck refers to a truck operated by a temporary or permanent employee of an establishment or the buyer/receiver of the shipment.

^c Excludes most shipments of crude oil.  See previous table for the estimated amount of crude oil and petroleum products transported in the United States.

Crude Oil and Petroleum Products Transported in the United States by Mode

KEY: N = data do not exist; R = revised.

Value of U.S. Exports to and Imports from Canada and Mexico by Transportation Mode

^aOther includes "flyaway aircraft" or aircraft moving under their own power (i.e., aircraft moving from the manufacturer to a customer and not carrying any freight), powerhouse (electricity), vessels moving under their own power, pedestrians carrying freight, and unknown and miscellaneous.

^bMail shipments data for several years prior to May 2004 were not compiled correctly resulting in undercounts.

^c Beginning in January 1996, new edit checks were added in the processing of the data. Because of these checks, the number of...

Value, Tons, and Ton-Miles of Freight Shipments within the U.S. by Domestic Establishments, 2017

KEY:  NEC = not elsewhere classified; SCTG = Standard Classification of Transportation Goods; R = revised.

^a All data have been revised using data from the final release of the 2017 Commodity Flow Survey.

^b Estimates exclude shipments of crude petroleum (SCTG 16).

^c Ton-mile estimates are based on estimated distances traveled along a modeled transportation network.  

Freight Activity in the United States: 1993, 1997, 2002, 2007, 2012 and 2017

KEY: R = revised; S = data are not published because of high sampling variability or other reasons; U = data are not available.

^a Truck as a single mode includes shipments that went by private truck only, for-hire truck only, or a combination of both. 

^b 1993 and 1997 data exclude most shipments of crude oil. 2002 and 2007 data exclude shipments of crude petroleum.

^c Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.

^d Percent change has been revised in...

Tonnage of Top 50 U.S. Water Ports, Ranked by Total Tons

KEY: N = data do not exist.

^a Tonnage totals include both domestic and foreign waterborne trade.

^b Data for 2021 and 2012 are based on the top 50 water ports in 2021 and 2012, and are not a summation of the numbers in the table.

^c All ports excludes duplication.

Bus Profile

KEY:  N = data do not exist; R = revised; U = data are unavailable.

^a In 2003, the Federal Motor Carrier Safety Administration implemented a program to improve reporting by Class I intercity bus carriers. This accounts for the large increase in Number of operating companies between 2002 and 2003, and as a result the large increase in Operating revenues and Operating expenses. For all years, New Jersey Transit has been excluded from the totals because of its status as a publicly run carrier.

^b Urban...

U.S. Waterborne Freight

KEY: R = revised.

Truck Profile

KEY: N = data do not exist; NA = not applicable; R = revised; U = data are not available.

^aTruck transportation (NAICS 484) - Industries primarily engaged in over-the-road transportation of cargo using motor vehicles, truck-tractors, and trailers.

Couriers and messengers (NAICS 492) - Establishments primarily engaged in providing air, surface, or combined courier delivery services of parcels or primarily engaged in furnishing local messenger and delivery services of small items within a single metropolitan area or urban center...

Automobile Profile

KEY: N = data do not exist; R = revised; U = data are  not available.

^a  Figures obtained by addition / subtraction and may not appear directly in data source.

^b  Urban consists of travel on all roads and streets in urban places of 5,000 or greater population.

^c  1960-90 includes Motorcycle data.

^d  Involvement only with motor vehicle.

^e  1960 included in Single-unit 2-axle 6-tire or more truck in Truck Profile.

^f  1960-90...