|
|
| Re: Would 4-track express service be of any benefit for Northern Manhattan lines (1, A)? (487201) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: Would 4-track express service be of any benefit for Northern Manhattan lines (1, A)? |
|
|
Posted by Rail Blue on Fri Sep 7 12:24:02 2007, in response to Re: Would 4-track express service be of any benefit for Northern Manhattan lines (1, A)?, posted by Fytton on Fri Sep 7 11:39:18 2007. With, presumably, uptown trains carrying on to Van Cortlandt PArk using the new blue track, and terminating trains using the existing uptown local track. These terminating trains would relay in the yard, using the new blue crossover to reach the downtown local track.Exactly. And there's a small "park" above where the new uptown through platform would be, so disruption would be fairly minimal (and the neighborhood could be bought off with a nicer park at the end of it all). And you might have noticed that I drew it as a London-style cross-platform transfer (i.e. two caverns with connecting passages), as that would avoid demolishing too much of the original 1904 station. But - it's a relay, so they have to fumigate. Yes, it's a limitation, but one that almost certainly would not be met in practice. Assuming South Ferry can indeed handle 24tph, then the obvious service pattern would be having 12tph relaying and 12tph continuing. And we already know that relay terminals can handle in excess of 12tph (look at Continental). Instead why not, south of the existing crossover from the uptown local track to the middle track, put in another crossover from the middle track to the downtown local. Now the T/O can walk along the platform instead of through the train... That would work, but it could well end up with passengers unexpectedly having a trip back down to 96th. Of course, there's a very good reason a relatively cheap construction project at 137 couldn't happen: finally having enough terminal capacity at that end of the line would really emphasize the quality of South Ferry. |
|
(There are no responses to this message.)
|
|