Definition of "train track" []

• Railroad track (noun)
• A set of curves lying in a surface, meeting one another at their respective endpoints in a specific way that resembles railroad tracks (noun)

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• "We talk awhile and I get something of a condensed history of the district—it has been around nearly a hundred years and the high-line—the elevated train track that runs from midtown to the Meatpacking District—was built in the forties so that the meat, which was ferried across from New Jersey, could be put in refrigerated train cars and brought downtown from the ferry landing at Thirty-fourth Street."