Some ancient history (some 45+ years ago):
https://www.nytimes.com/1973/06/09/arch ... f-the.html" onclick="window.open(this.href);return false;
Some interesting snips:
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According to the proposal of the two Representatives and the Yonkers Mayor, the M.T.A. the umbrella agency that over seas operation of the city's sub ways, the Long Island and the Penn Central commuter runs in the state, would own and operate the service as interim measure pending completion of the Second Avenue subway, which is scheduled to be completed in 1980, and which is to serve Co‐op City.
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SAS to be completed in 1980 to Co-Op City!
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Stops would be made also at Pelham Manor and at the Parkchester development in the Bronx. Mr. Bingham said the trip from Co‐op City to Penn Station would take only 30 minutes and cost a commuter 80 to 85 cents. He said many of the Co‐op City commuters spend 90 minutes getting to jobs in Manhattan, using bus and subway, and that some pay more than 80 or 85 cents for their journey.
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Pelham Manor is not included in this iteration (IIRC it had a station on the former NH Harlem River Branch service). No Hunts Point or Morris Park either.
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An M.T.A. spokesman, asked if the East 63d Street tunnel for L.I.R.R. and subway trains now under construction would eventually mean more room for other trains in the tunnel to Penn Station, said that the new tunnel could not be used until a new East Side rail terminal, scheduled for completion in 1980, was finished. By that time, he said, the Second Avenue subway is supposed to be ready.
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An East Side Rail Terminal for the LIRR! Remember that?! IIRC it was supposed to be around 2nd and 63rd, to connect to the SAS.