^ North and south of 72 and south of 96 (currently).
A bored subway like SAS is going to have more crossovers due to running tunnels not being connected down line and, unlike the old cut and cover subway lines (with crossovers to express tracks that can be used to bypass stations in a service event), in order to maintain service more flexibility needs to be provided to move trains from one side of the center platform to the other. A double crossover after each platform end is also seen at 34/Hudson Yds.
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