The Union Pacific Railroad is a Class I freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United States after BNSF, with which it shares a duopoly on transcontinental freight rail lines in the Western, Midwestern and West South Central United States.
The Canadian National Railway Company is a Canadian Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern and Southern United States.
BNSF Railway is the largest freight railroad in the United States. One of six North American Class I railroads, BNSF has 36,000 employees, 33,400 miles (53,800 km) of track in 28 states, and over 8,000 locomotives. It has three transcontinental routes that provide rail connections between the western and eastern United States. BNSF trains traveled over 169 million miles in 2010, more than any other North American railroad.
Railroad classes are the system by which freight railroads are designated in the United States. Railroads are assigned to Class I, II or III according to annual revenue criteria originally set by the Surface Transportation Board in 1992. With annual adjustments for inflation, the 2019 thresholds were US$504,803,294 for Class I carriers and US$40,384,263 for Class II carriers.
Montreal Locomotive Works (MLW) was a Canadian railway locomotive manufacturer that existed under several names from 1883 to 1985, producing both steam and diesel locomotives. For many years it was a subsidiary of the American Locomotive Company. MLW's headquarters and manufacturing facilities were in Montreal, Quebec.
A reporting mark is a code used to identify owners or lessees of rolling stock and other equipment used on certain rail transport networks. The code typically reflects the name or identifying number of the owner, lessee, or operator of the equipment.
A tank car or tanker is a type of railroad car or rolling stock designed to transport liquid and gaseous commodities.
Rail transportation in the United States consists primarily of freight shipments along a well integrated network of standard gauge private freight railroads that also extend into Canada and Mexico. The United States has the largest rail transport network of any country in the world, about 160,000 miles (260,000 km).
Mexico has a freight railway system owned by the national government and operated by various entities under concessions (charters) granted by the national government. The railway system provides freight and passenger service throughout the country, connecting major industrial centers with ports and with rail connections at the United States border. Passenger rail services were limited to a number of tourist trains between 1997, when Ferrocarriles Nacionales de México suspended service, and 2008, when Ferrocarril Suburbano de la Zona Metropolitana de México inaugurated Mexico's first commuter rail service between Mexico City and the State of Mexico. This is not including the Mexico City Metro, which started service in 1969.
Positive train control (PTC) is a family of automatic train protection systems deployed in the United States. Most of the United States' national rail network mileage has a form of PTC. These systems are generally designed to check that trains are moving safely and to stop them when they are not.
Goods wagons or freight wagons, also known as goods carriages, goods trucks, freight carriages or freight trucks, are unpowered railway vehicles that are used for the transportation of cargo. A variety of wagon types are in use to handle different types of goods, but all goods wagons in a regional network typically have standardized couplers and other fittings, such as hoses for air brakes, allowing different wagon types to be assembled into trains. For tracking and identification purposes, goods wagons are generally assigned a unique identifier, typically a UIC wagon number, or in North America, a company reporting mark plus a company specific serial number.
The following is a brief history of the North American rail system, mainly through major changes to Class I railroads, the largest class by operating revenue.
Railinc Corporation provides rail data and messaging services to the North American freight railway industry. Railinc is a for-profit subsidiary of the Association of American Railroads.
MxV Rail is a subsidiary of the Association of American Railroads (AAR) which conducts railroad equipment testing and training for member railroads.
Bombardier Transportation México is a subsidiary company of Bombardier Transportation located in Ciudad Sahagún, Mexico.
The Chicago Rock Island & Pacific Railroad LLC is an American Class III railroad operating in Mississippi, Kansas and Oklahoma. It uses the name and the most recent corporate identity of the first Chicago, Rock Island and Pacific Railroad (1852–1980).
