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| Re: Some Subways Found Packed Past Capacity (452544) | |||
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Re: Some Subways Found Packed Past Capacity |
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Posted by shadyelstation on Wed Jun 27 12:19:35 2007, in response to Re: Some Subways Found Packed Past Capacity, posted by SMAZ on Wed Jun 27 04:55:22 2007. Point taken, but the limiting factor isn't so much the Jamaica Center terminal (though I agree that better switch placement and operation could increase capacity there). There is the at-grade crossing at Myrtle, and then there's the Williamsburg Bridge. If the local and express each operated 9-10 TPH, congestion issues at Myrtle and capacity issues over the bridge may arise.I admit, however, that the Jamaica Ave Shortcut is a radical idea and it would probably be better to build the center track over the current alignment on Fulton to avoid the NIMBY issue and circumvent the limited benefit issue. You plan to only run 6 TPH at all the local stations forgetting that these trains would get twice the riders because of the elimination of skip-stop. They would need at least 9-10 TPH. Keep in mind that, except for the stations served by both (J) and (Z) trains, the skip-stop stations get service every 10 minutes. So a local that ran every 10 min actually wouldn't make much of a difference as far as service levels go. Under my plan, with express service starting at Woodhaven Blvd, the only station that would lose service is Crescent St (and that can be solved by making it an express stop; build an upper level platform on either side of the elevated center track.) To further my point, the(J)/(Z) timetable shows that (J) trains run every 8-10 minutes when skip-stop isn't running. (Now, this isn't to say that TPH could be bumped up a bit...) I also notice you wanna send the (V) to Jamaica Center. So under your plan, the (M) would remain the Nassau/4th Ave Local? |
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