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IRT Jerome Avenue Line: North of the 161st Street–Yankee Stadium station is the framework for the connection from the IRT Ninth Avenue Line. IRT Dyre Avenue Line: The Dyre Avenue Line was part of the New York, Westchester, and Boston Railway; it continued north beyond Eastchester–Dyre Avenue to White Plains and Port Chester; and south of ...
A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.
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A letter v (Latin small letter v) written on a line representing a surface is a way to indicate that the surface is to be machined rather than left in the as-cast or as-forged state. The older symbol for this was a small script (italic) f (see herein f). Later the ASA convened upon a letter V (specifically a sans-serif V) touching the surface ...
Lines can also be classified by a letter classification in which each line is given a letter. Type A lines show the outline of the feature of an object. They are the thickest lines on a drawing and done with a pencil softer than HB. Type B lines are dimension lines and are used for dimensioning, projecting, extending, or leaders. A harder ...
The most constant is the line, the physical structure and the tracks that trains run over.Each section of the system is assigned a unique line name, usually paired with its original operating company or division: Brooklyn–Manhattan Transit Corporation (BMT), Interborough Rapid Transit Company (IRT), Independent Subway System (IND).
The A Division, also known as the IRT Division, [2] is a division of the New York City Subway, consisting of the lines operated with services designated by numbers (1 ...
Previously it was used by the IRT to designate their route that used the Astoria Line, which was originally jointly operated with the BMT prior to 1949. Additionally, it appears on the rollsigns of some trains as a green 8. [1] 9 was last used for skip-stop service on the IRT Broadway–Seventh Avenue Line from 1989 to 2005. [2]