Quote:
Originally Posted by ardecila
MTA has determined that they can't separate the tracks horizontally, so in the case of the LRT/BRT alternatives they're proposing to stack the new transit line over the freight tracks.
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Which is interesting since for any Cross Harbor tunnel plan to be feasible (and worthwhile) the corridor would need to have clearance for standard double stack container cars. Correct me if I'm wrong but that's about 20.5 feet above rail, so realistically bridge clearance would require probably a 24 foot minimum or around the same for electrified HSR. This would require digging down to remove grade. Exactly what, beyond the obvious material expense, would prevent a stacked subway or yes, mainline or some quasi blend of standards, of standard ~12' high cars from sharing a trackway space? It would essentially be a CPW or Lex arrangement inside the confines of an open cut.