Teban54
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Perhaps a Crazy Transit Pitch, based on @F-Line to Dudley's post with planned station layouts:
Is there a way to flip the local and express tracks north of Route 128, such that outer tracks are express and inner tracks are local, as opposed to the more typical setup south of Route 128? Since Forest Hills and Hyde Park do have room for one island platform, but not two side platforms (at least without seemingly expensive modifications and/or eminent domain), this would theoretically allow the two center local tracks to share the platform and enable bidirectional local service. There seems to be ample length and width north of Route 128 for flyovers.
Is there a way to flip the local and express tracks north of Route 128, such that outer tracks are express and inner tracks are local, as opposed to the more typical setup south of Route 128? Since Forest Hills and Hyde Park do have room for one island platform, but not two side platforms (at least without seemingly expensive modifications and/or eminent domain), this would theoretically allow the two center local tracks to share the platform and enable bidirectional local service. There seems to be ample length and width north of Route 128 for flyovers.
Forest Hills (4-track layout), Hyde Park (4-track layout)
====< local track
[<- Island platform ->]
====< express track / > local track
====> express track
====> local track
(FH is structurally unexpandable, and HP has to trade 3-track w/side platforms for 4-track w/squished island because of lack of space. With additional platforms physically impossible, it requires crossing over the express tracks to reach. Creates lots of conflicts that sharply limit which schedules can use these platforms. Any intermediate stops between FH and HP have to retain the same layout--even if there's room to do better--because more switches means an even bigger mess with crossing over. This right here is the Achilles heel of the whole works.)