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Jcb

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Posts posted by Jcb

  1. 1 minute ago, Lawrence St said:

    That was what was suppose to happen with the (G), with the (E) going to 179th St and the (G) to Parsons/Archer, with a shuttle between Kew Gardens & Parsons Archer late nights. But the plan wasn't popular and it was scrapped.

    Understood. Do you think it was because of the prospect of local service or because of no service to Manhattan, or both?

  2. I've been wondering if there's a reason the MTA doesn't send both the (E) and (F) to 179th. Would extending either the (M) or (R) to Parsons/Archer and installing a pair of crossovers west of Parsons/Hillside be a viable solution? So you effectively move the (E)(F) merge further east, and a lower-frequency local serves Jamaica, with a shuttle from Parsons/Archer to Briarwood during the overnights. You might have to rearrange the bus routes in order to not cause an overload at Union Turnpike, but I believe that this relatively minor change would straighten out a lot of problems. Of course, I'm probably overlooking something, and it doesn't instantly fix everything, but what do you think? 

  3. 2 hours ago, Deucey said:

    2) Manhattan assessed itself a tax to bring down the Els because they're unsightly and noisy with how (NYCT) and even (MTA) will build them.

    Even though I disagree with the idea that a modern el would still be unsightly and noisy, I understand where you're coming from.

     

    4 hours ago, JeremiahC99 said:

    On a more serious note, if we are to do more outdoor Subway, the one option we can do is an embankment in between the block rather than over the Street. Vanshnookenraggen proposed that for a modern plan for the Utica Avenue a Subway, having an elevated line on the west Side of Utica Avenue through Flatlands, and having development built around it to replace Chop shops.

    That would also allow the MTA to recoup some costs of construction by renting space around the line, much like Japan's train station apartment complexes.

  4. 6 hours ago, LaGuardia Link N Tra said:

    It’s not even that. Do you really think that Half a mile of TBM’s is worth $2 Billion?

    No. That's still a ridiculous cost. It should be less.

     

    4 hours ago, Deucey said:

    1) Someone more knowledgeable on transit construction can probably do this better, but I believe there's some federal requirement about tunnels' walkways and the ADA that makes TBMs the option easiest to pass FTA scrutiny and get funded

    Understood.

    4 hours ago, Deucey said:

    2) Manhattan assessed itself a tax to bring down the Els because they're unsightly and noisy with how (NYCT) and even (MTA) will build them. Why shouldn't folks who aren't wealthy UES/UWS residents have an unsightly viaduct increasing neighborhood noise when it could go underground instead? Watch the experience of folks along Broadway with the (J)(M) or Jerome Ave with (4) and it's clearly evident why you don't want high frequency transit on an elevated structure when it could go underground.

    New elevated construction isn't like most of what we have in this city. It can be much quieter and much lower-impact, much like the AirTrain's viaduct.

     

    600px-Roosevelt-avenue-queens-nyc_cars_d

    The above picture is absolutely not an ideal form of construction.

    2560px-TRTC_Bombardier_INNOVIA_APM_256_2

    Something like this would be much lower-impact. No one considers these because the words "elevated line" conjure up visions of the old steel frameworks. They just need rebranding, at least in my opinion.

  5. On 9/21/2019 at 4:58 PM, bobtehpanda said:

    The problem with express tracks is

    • the cost; boring 4 tracks is a lot more expensive than doing it cut and cover
    • the utility; an express would be useless pretty much until Phase I-IV was built out and extensions even farther, and possibly an even longer timeframe; it took a few decades for Sixth Avenue's express tracks to be put into service.

    At this point, I only think Lower Second Avenue is useful as part of a new two-track line eventually heading down Northern, or the Queens Boulevard Bypass, separate from 63 St.

    You make good points, although the use of deep bore construction to minimize surface disruption is emblematic of the problem with SAS, I think. They decided to avoid dealing with the community as much as possible in order to slap down something that fits today's needs, with no real eye to the future. It didn't have to be some overbuilt mess like the Second System provisions, but I would think I should expect forward thinking out of a new trunk line. 

  6. Phase 2,and to a much lesser extent, Phase 1, as we can all agree, are gimped versions of the potential core capacity that could've been gained with a 4-track trunk line, with the excuse given that "stop spacing is further, therefore faster." The curve towards 125 limits potential Bronx capacity and potential ridership siphoned off of all the Bronx IRT lines with the exception of the (1).

    The forced reverse branching limits lower 2nd Avenue, if it's ever built, to 15 TPH on the (T). ANy additional capacity would require the completion of the Queens Boulevard Bypass, another project which would require quite a bit of construction, time, and cost. This also limits potential Brooklyn capacity to 15TPH for Fulton Street, and precludes the creation of new Brooklyn and Queens trunks (Northern Boulevard, Horace Harding Expressway, Union Turnpike) because they would also be very limited in throughput. This also doesn't account for the increased travel time of what's essentially a Lexington Avenue relief line with no alternatives in case of something going wrong (as is traditon on the subway). Maybe if someone wrote a well-thought-out editorial with such concerns, it would become a common refrain somewhere...

    All they had to do was not blow it on planning for the future in order to save money, and guess what they did.

  7. Few thoughts on the <F> (PM at least) I was on the first.

    Something must be seriously wrong with local service, whether the switches at Jay or terminal ops at Church, if the <F> is saving 6 whole minutes over the local on that stretch. Having said that,

     

    • The first PM express was directly behind a local and was lightly loaded from 57th street on down. Might just be a poor interval, though.
    • Culver Express is a lot more heavily timed than I expected, especially considering how lightly used it is. The viaduct's speeds were somewhat disappointing, although I suppose the interlocking by 4th Ave-9th St might have something to do with that
    • I got to Jay Street northbound right after the second express left, and the platform was PACKED. That either doesn't bode well for future service, or means that the express should be scheduled to directly precede a local, IMO.
    • This service pattern won't go away at the end of the trial, it's basically the 2 (F) trains that would randomly go express during the PM peak, but officially in the schedule.
    • The <F> has potential, and is the key to allowing the (G) to finally have consistent, reliable intervals. However, as many people have said, this relies on Bergen Street Lower being reactivated to provide a transfer point for Red Hook and Carroll Gardens residents.

    Unrelated but the <F> displays as ( F ) on the advertising screens and I think that's neat. (63rd St- 8th avenue connection theories, anyone?)

  8. 4 hours ago, T to Dyre Avenue said:

    But when you run the (R) and <R> in tandem, you’ll have a long gap between first two trains and the next two. Unless the headways between each (R) and <R> train are more evenly spaced out, I can see riders continuing to gripe.

    I figured that more-or-less even frequencies were implied. I'm sorry if  it wasn't clear. Services, as a rule, really shouldn't be scheduled to bunch.

  9. A Bay Ridge-Nassau Street service that runs in tandem with the (R) like the old <R> Banker's special, but with expanded hours is probably the best way to solve the problem without any construction IMO. 95th street should have enough capacity to turn those trains. Essex would probably be the cause of the upper limit on capacity, as if you look at the track map, the distance that would have to be covered on a single track is rather long.

    With a little construction, the old four-track Nassau config could probably be restored, and termination could be done in the middle of Canal street, thus allowing for more frequency. As a bonus, a couple trains each morning and evening (maybe 2-3) before morning rush and then 2-3 after evening rush, could run to Broadway Junction if they need ENY access. Apologies if this proposal already came up earlier in the thread.

     

    Also, and unrelated, why did they reconfigure Nassau? What possible benefit was gained by removing two tracks from service and adding a bunch of slow curves to Brooklyn-bound service?

  10. If it's used to its full potential, it can be a huge boon to the operations of the transit system. However, the inefficiency that NYCT currently operates with makes its potential benefits not worth the cost, as we could easily achieve higher frequencies with the signals that we currently have. It definitely has more frequency potential than fixed block, but at this point in time it's too expensive for what we achieve with it.

  11. It's kind of interesting how everyone settled on CBTC as the answer. Although it absolutely has its merits, are there any examples of it scaling up to a system with as much interlining and possibility of reroute?

     

    In the interim, though, the MTA has been given lemons. They aren't making the lemonade that they could be. 

  12. I notice that CBTC is increasingly described as the technology that fixes any operation and/or speed issues on the subway. I feel , at risk of great oversimplification, that a more efficient operating environment would fix a lot of capacity issues:

    • Reprogram NTT motors to accelerate faster and to higher speeds
    • Loosen penalties for operators that trip timers while traveling at the posted speed
      • Only if it can be proven that they were traveling at or below said speed
    • Decrease braking distances and control lengths
    • Survey every timer in the system and evaluate which are truly necessary for safety
    • Assign each dispatch tower a permanent crew so that they can learn the patterns of their designated area for efficiency's sake
    • Use local recycle on NTTs instead of reopening the entire set

    Honestly these are a lot easier said than done, but they would probably cost less than and be faster to implement than CBTC for some temporary relief from our current situation. 

    • On an unrelated note, connecting IND Fulton St and Montague with SAS provisions would probably be a quick solution for Cranberry's issues

     

  13. Can Broadway Jct handle all those (M) s?? because every morning there's this long ass conga line of (J) and (M) s unless they cut the amount of trainsets per hour on the (M)

    Why don't they run the (M) peak direction express on the El? It would probably eliminate or at least reduce the conga line.

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