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RR503

Subway Capacity Thread

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6 hours ago, RR503 said:

It’s the dwell times and to a lesser extent the reluctance to use ST that kills there. In Lower Manhattan, the latter issue becomes the primary issue, and you can throw in Bowling Green congestion in too. 

Just imagine that the second platform was added to Bowling Green.

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7 hours ago, Union Tpke said:

Just imagine that the second platform was added to Bowling Green.

I always wondered if it were possible to extend the shuttle track and platform and use that for terminating (5) trains...

so something like this:

--------------------------------

[ drop off only (5) ]

--------------------------------

[     brooklyn (4)    ]

--------------------------------

[uptown & bronx (4)(5)]

Brooklyn bound (4) trains would have to use both sides but idk if that's a huge issue or not.

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This feels like a situation where we’re letting operational incompetence cloud our vision of need. We really shouldn’t have (5) short turns — they exist largely to relieve Rogers — and if we are gonna have them, just schedule uptown service so that the terminating (5) can immediately re-enter service northbound. Then you can operate just like City Hall.

On weekends, no decently operated railroad would have issues running (5)s through. 

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4 hours ago, Around the Horn said:

I always wondered if it were possible to extend the shuttle track and platform and use that for terminating (5) trains...

so something like this:

--------------------------------

[ drop off only (5) ]

--------------------------------

[     brooklyn (4)    ]

--------------------------------

[uptown & bronx (4)(5)]

Brooklyn bound (4) trains would have to use both sides but idk if that's a huge issue or not.

Here is what @CenSin came up with several years back that I saved:

29063193521_df62d0e6f3_o.pngHRiWITh by Union Turnpike, on Flickr

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13 minutes ago, R68OnBroadway said:

How much TPH could we gain by redoing the Astoria switches? 

Current limit is 15; you could probably get to 24-26 before you need tail tracks.

Edited by RR503
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50 minutes ago, RR503 said:

Current limit is 15; you could probably get to 24-26 before you need tail tracks.

Are there any other factors limiting along Broadway? 

Also, could you maybe add some switches to turn some trains at Astoria Blvd’s center track?

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24 minutes ago, R68OnBroadway said:

Are there any other factors limiting along Broadway? 

Also, could you maybe add some switches to turn some trains at Astoria Blvd’s center track?

On the local, the big one is the curve at City Hall. I’ve heard figures as low as 24 for that area, though luckily you have Canal/City Hall Lower to short turn trains. 

I’ve heard both ways on Astoria Boulevard, but I’d generally err on the side of it not being possible. Getting switches onto that hump would be difficult in the best of conditions. 

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