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Track warrants are issued granting main track use between two named points (i.e. milepost sign, station, or any fixed physical point, such as a switch).The dispatcher may also issue time constraints (known as "Box 6" on a standard form), although the track warrants remain in effect until cleared by a member of the receiving crew.
The name comes from the form that train crews copy the authority onto. A sample Form D is available here; line two is used to grant authority for occupying the track. Clearance Card Form K Control This is a form commonly used on railroads such as the LIRR which base its rules on the SCOR.
If the template has a separate documentation page (usually called "Template:template name/doc"), add [[Category:Templates for railway lines of the United States]] to the <includeonly> section at the bottom of that page.
In 1895, the Railway Signaling Club was organized at a meeting in Chicago, Illinois, and created a code of rules governing the operation of interlockings. In 1919, the Signaling Club became the Signal Division of the newly created American Railway Association (ARA) and the Telegraph Superintendents became its Telegraph and Telephone Section.
The Iron Ore Line north of Kiruna was the first electrified railway line in Sweden and has limited height clearance (SE-B) because of snow shelters. On the rest of the network belonging to the Swedish Transport Administration ( Trafikverket ), the structure gauge accepts cars built to SE-A and thus accepts both cars built to UIC GA and GB.
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A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.