![]() ![]() |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
KEY: NA = Not applicable. U = Data are unavailable. NOTES Canada Road: Includes only activity of Canadian domiciled for-hire carriers with annual intercity revenues greater than or equal to 1 million Canadian dollars; excludes local (less than 24 kilometers) deliveries and deliveries made by private trucks and small for-hire carriers. Pipeline: Data are for both oil pipelines and natural gas. Mexico Total: Does not include data for pipelines because the data are unavailable. Road: Includes only intercity truck activity on the Mexican federal highway system. United States Road: Data are for intercity for-hire and private truck only. Pipeline: Data are for both oil pipelines and natural gas. SOURCES Canada Air: Statistics Canada. Canadian Civil Aviation, Catalogue No. 51-206-XPB. (Ottawa, Ont.: various years). Coastal shipping, Great Lakes and inland waterways and rail: Transport Canada. Economic Analysis Directorate based on Statistics Canada data. (Ottawa, Ont.: 1998). Pipeline: Statistics Canada. Oil Pipeline Transport, Catalogue No. 55-201-XPB, and Gas Utilities Transport and Distribution Systems, Catalogue No. 57-205-XPB. (Ottawa, Ont.: various years). Rail: Transport Canada. Economic Analysis Directorate, based on Statistics Canada data. (Ottawa, Ont: 1998). Road: Statistics Canada. Trucking in Canada, Catalogue No. 53-222-XPB. (Ottawa, Ont.: various years). Mexico Air: Secretaría de Comunicaciones y Transportes. Dirección General de Aeronáutica Civil. La Aviación Mexicana en Cifras 1990-1996. (Mexico City, D.F.: 1998). Water transport: Secretaría de Comunicaciones y Transportes. Coordinación General de Puertos y Marina Mercante. Los Puertos Mexicanos en Cifras 1990-1996. (Mexico City, D.F.: 1997). Rail: Secretaría de Comunicaciones y Transportes. Based on data from Ferrocarriles Nacionales de México. Series Estadísticas 1990, 1995 and 1996. (Mexico City, D.F.: various years). Road: Secretaría de Comunicaciones y Transportes. Dirección General de Autotransporte Federal. (Mexico City, D.F.: 1998). United States Air: U.S. Department of Transportation. Bureau of Transportation Statistics. Office of Airline Information. Air Carrier Traffic Statistics. (Washington, DC: various years). Coastal shipping, Great Lakes and inland waterways: U.S. Army Corps of Engineers. Waterborne Commerce of the U.S., Part 5. (New Orleans, LA: Annual issues). Pipeline, crude oil and petroleum products: Association of Oil Pipe Lines. Shifts in Petroleum Transportation. (Washington, DC: various years). Pipeline, natural gas: U.S. Department of Transportation. Bureau of Transportation Statistics. Special tabulation based on Department of Energy data. (Washington, DC: 1999). Rail: Association of American Railroads. Railroad Facts, 1997. (Washington, DC: 1997). Road: Eno Transportation Foundation, Inc. Transportation in America, 1997. (Lansdowne, VA: 1997). |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||