Well just to the East of the Park Avenue grade crossing in Huntington, it shrinks down to one track and the third rail ends. At Greenlawn, the switches to the siding I think are manual, not computer programmed with the Western switch close to a grade crossing. Essentially, Platform B is used as a walkway to the Southern parking lot since the station has a pedestrian overpass. I think they also constructed Platform B for anticipation of future electrification East of Huntington or all the way to Port Jefferson to electrify the remainder of the branch. In the 1980's, the seven stations East of Huntington had high-level platforms constructed for anticipation but the project was scrapped in favor of relocating LILCO power poles at the time, expanding the new diesel fleet, and electrifying the central corridor of Suffolk County with the Ronkonkoma Branch from Hicksville to Ronkonkoma.
Phillip Eng has two electrification projects in mind right now: Electrifying the Central Branch to make it possible for electrics to take a detour in case of any work or suspension of the Babylon Branch from Lindenhurst Westward, or any work or suspension between Hicksville and Ronkonkoma. The second is electrifying the rest of the Port Jefferson Branch. That project would require electrifying the remaining 23 miles of track in Northern Suffolk County, and by any means necessary construction of a second track to be put into service from the Huntington linear track through at least Northport since there is ample room on the Southern side of the ROW. Currently the only stations that have one track are Northport and St. James. but Port Jefferson has 4 tracks with only the Northernmost track having a platform. Lets not forget that with a project of that magnitude the construction we saw for the Double Track from 2015-2018 and the Third Track currently is expansion of necessities for passengers, and improvements to infrastructure (elevators, rehabilitated platforms, parking garages at major hubs, updated signal interlockings etc.)
This station is Babylon, this is the train to Penn Station. Stopping at: Lindenhurst, Copiague, Amityville, Massapequa Park, Massapequa, Seaford, Wantagh, Bellmore, Merrick, Freeport, Baldwin, Rockville Centre, Lynbrook, Valley Stream, Jamaica, Kew Gardens, Forest Hills, Woodside, Penn Station.