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. (Smaller carriers were Class III by default.)
There are six Class I freight railroad companies in the United States: BNSF Railway, CSX Transportation, Canadian National Railway, CPKC, Norfolk Southern Railway, and Union Pacific Railroad. Canadian National also operates in Canada and CPKC operates Canada and Mexico.
In addition, the national passenger railroad in the United States, Amtrak, would qualify as Class I if it were a freight carrier, as would Canada's Via Rail passenger service. Mexico's Ferromex freight railroad would also qualify as Class I, but it does not operate within the United States.
Railroadclasses are the system by which freight railroads are designated in the United States. Railroads are assigned to Class I, II or III according...
increased grate area from previous classes' 55 to 70 sq ft (5.1 to 6.5 m2). The boiler barrel was fatter than previous classes, and the increase in heating...
Pennsylvania Railroad'sclass H8, H9s and H10s steam locomotives were of the 2-8-0 "Consolidation" type, the last three classes of such built by the railroad. The...
In the United States, railroads are designated as Class I, Class II, or Class III, according to size criteria first established by the Interstate Commerce...
are four different classes of freight railroads: Class I, regional, local line haul, and switching & terminal. Class I railroads are defined as those...
The Pennsylvania Railroad (PRR) class T1 duplex-drive 4-4-4-4 steam locomotives, introduced in 1942 with two prototypes and later in 1945-1946 with 50...
The Pennsylvania Railroad'sclass B1 comprised 42 electric switcher locomotives built between 1926 and 1935. They were of 0-6-0 wheel arrangement in the...
Railroad GG1 is a class of streamlined electric locomotives built for the Pennsylvania Railroad (PRR), in the northeastern United States. The class was...
The Pennsylvania Railroad G5 is a class of 4-6-0 steam locomotives built by the PRR's Juniata Shops in the mid-late 1920s. It was designed for passenger...
The PRR S1 class steam locomotive (nicknamed "The Big Engine") was a single experimental duplex locomotive of the Pennsylvania Railroad. It was designed...
The Pennsylvania Railroad's S2 class was a steam turbine locomotive designed and built in a collaborative effort by Baldwin Locomotive Works and Westinghouse...
The Pennsylvania Railroad (PRR) class I1s steam locomotives were the largest class of 2-10-0 "Decapods" in the United States. From 1916 to 1923, 598 locomotives...
The M1 was a class of steam locomotive of the Pennsylvania Railroad (PRR). It was a class of heavy mixed-traffic locomotives of the 4-8-2 "Mountain" arrangement...
The Pennsylvania Railroad'sclass L5 were the railroad's second generation of production electric locomotives after the DD1, and the last to use a jackshaft...
The Pennsylvania Railroad'sclass Q2 comprised one prototype and twenty-five production duplex steam locomotives of 4-4-6-4 wheel arrangement built between...
Look up class in Wiktionary, the free dictionary. Class, Classes, or The Class may refer to: Class (biology), a taxonomic rank Class (knowledge representation)...
standard classes. The PRR was the first American railroad to adopt the Westinghouse air brake, the first tests of which were made in September 1869; Class A...
service into the 1930s. The sub-classes differed as follows:[page needed] In the first decade of the twentieth century classes E2 and E3 handled all of the...
The Pennsylvania Railroad'sclass P5 comprised 92 mixed-traffic electric locomotives constructed 1931–1935 by the PRR, Westinghouse and General Electric...
The Pennsylvania Railroad'sclass R1 comprised a single prototype electric locomotive constructed in 1934 by the Baldwin Locomotive Works of Philadelphia...
Pennsylvania RailroadClass L1s were 2-8-2 "Mikado"-type steam locomotives that were used on the Pennsylvania Railroad during the early twentieth century...
Railroad DD1 was a class of boxcab electric locomotives built by the Pennsylvania Railroad. The locomotives were developed as part of the railroad's New...
The Pennsylvania Railroadclass Q1, #6130, was a single experimental steam locomotive designed for dual service. The locomotive entered service in 1942...
classification on the Pennsylvania Railroad took several forms. Early on, steam locomotives were given single-letter classes. As the 26 letters were quickly...
all of the Pennsylvania Railroad's steam locomotives. Mechanically, these locomotives were identical to the C&O's T-1 class 2-10-4s. As initially built...
The Pennsylvania Railroad'sclass A5s was the largest class of 0-4-0 steam locomotives. The Pennsylvania Railroad built 47 in its Juniata Shops between...
Class E6 on the Pennsylvania Railroad was the final type of 4-4-2 "Atlantic" locomotive built by the railroad, and second only to the Milwaukee Road's...
Pennsylvania Railroadclass E2c comprised a pair of experimental C-C (AAR) or Co-Co (UIC) electric locomotives. The bodywork and running gear was produced...
The Pennsylvania Railroad'sclass B6 was its most successful class of switcher locomotive, or as the PRR termed them "shifter". The PRR preferred the...
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