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Re: LIRR East Side Access / Roosevelt Island F Station

Posted by Michael549 on Fri Jan 18 15:35:06 2008, in response to Re: LIRR East Side Access / Roosevelt Island F Station, posted by Broadway Lion on Tue Oct 23 15:28:53 2007.

There are very few train routes that are completely "switch-less", and even some of the routes that seem to "naturally" to go somewhere involve switch points where a completely different can actually be had. For example, at the DeKalb avenue station there are six tracks that enter the station, and eight tracks that leave the station. On those tracks any and every route design can be supported, which has nothing to do with the terminals of those routes. An another example is the 145th Street station on St. Nicholas Avenue - a number of different routes can be created. At the 125th Street Lexington Avenue station - there is no law that says the Woodlawn/White Plains or Pelham Bay/Parchester trains have to be local or express - a variety of designs are capable, and none of that says anything about their terminals. There are several places where different decisions could be made, and yes there are some places where it is "better" to perform a certain pattern of train direction - but there is a lot more flexibility than too often noted.

Please remember that in "designing train routes" one should understand that certain stations offer connections and transfers to other lines that are very important.


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