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Reply to "LIRR Tunnel under this East river to Grand Central?"

@Stuart posted:

Yes, you are correct.  LIRR uses over running, and Metro North uses under running.  At one time the MTA tried to make a universal third rail shoe that could be used on either without any special set up, but it just couldn't be made to work reliably.

Stuart

Let me guess.  MN is legacy from NYC, and LIRR from PRR?

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