<P> The 3200 - series, was built from 1992 until 1994 by Morrison - Knudsen of Hornell, New York . These cars have fluted, stainless steel sides similar to the now - retired 2200 - series . </P> <P> The newest series of train cars, the 5000 - series, feature AC propulsion, security cameras, and aisle - facing seating . </P> <P> The Chicago rapid - transit system is officially nicknamed the "L". This name for the CTA rail system applies to the whole system: its elevated, subway, at - grade, and open - cut segments . The use of the nickname dates from the earliest days of the elevated railroads . Newspapers of the late 1880s referred to proposed elevated railroads in Chicago as "' L' roads ." The first route to be constructed, the Chicago and South Side Rapid Transit Railroad gained the nickname "Alley Elevated", or "Alley L" during its planning and construction, a term that was widely used by 1893, less than a year after the line opened . </P> <P> In discussing various stylings of "Loop" and "L" in Destination Loop: The Story of Rapid Transit Railroading in and around Chicago (1982), author Brian J. Cudahy quotes a passage from The Neon Wilderness (1947) by Chicago author Nelson Algren: "beneath the curved steel of the El, beneath the endless ties ." Cudahy then comments, "Note that in the quotation above...it says' El' to mean' elevated rapid transit railroad .' We trust that this usage can be ascribed to a publisher's editor in New York or some other east coast city; in Chicago the same expression is routinely rendered' L' ." </P>

Why do they call it the l in chicago
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