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Re: Cut and Cover explanation

Posted by RonInBayside on Sun Jul 23 10:46:28 2006, in response to Re: My Route Suggestion of the Old Abandoned LIRR Rockaway Beach Branch, posted by R30A on Sun Jul 23 10:39:50 2006.

"How does calling cut and cover something different make it any cheaper?"

Cut and cover refers to a construction method wherein you work under decking while traffic, pedestrians etc travel on top of you. It lets you keep streets open while you work but since your work space and access is confined it takes you longer to do the work than an open-cut construction method.

On the Rockaway Line, the construction work would proceed in an open-cut fashion, which is much quicker and easier. Recall how fast the south Ferry IRT branch was rebuilt after 9/11.

However, once you put in the tracks and signals and lights and power, you then enclose the whole thing in a tunnel box. So in the end, the train operates in this "tunnel" but when you were building it it was an open-cut situation. Therefore, cheaper.


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