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ktxhopem3276 t1_j5pyxdz wrote on January 24, 2023 at 7:27 PM

Reply to comment by AirtimeAficionado in A T line from Pittsburgh International Airport to the Allegheny County Airport by MWBartko

A small detail is FTA limits heavy rail to 79mph unless it is completely grade separated in which case a diesel train can do 110 and that is caller higher speed rail while over 110 is high speed electrified heavy rail