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Can you cite that? I thought that the PATH ran on the local tracks of the IND 6th Avenue tubes for most of it's Manhattan haul.

I believe you are correct about the tracks through the cross river tubes, but less traffic makes it easier to incorporate in NYCTA, not harder.

They talked about running PATH trains up the rest of the 6th Ave trunk in the early Aughts, but it fell apart due to political dysfunction (shocking).

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PATH runs on its own tracks, between the IND local tracks on 6th.

The cross-harbor tunnels are cast iron, and are not straight.

The PATH and NYCT systems are incompatible. I think they use the same track gauges, but NYCT cars (either division) are too long to navigate some of the curves on PATH.

The other comment answers your question. PATH trains going along 6th ave share stations with NYCT, but run in their own tunnels.

The effects political dysfunction are really starting to materialize now. Penn Station, North River Tunnels, PATH tunnels are all in really critical states now.

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