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Old February 1st, 2017, 02:12 AM   #2521
redspork02
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Quote:
Originally Posted by aquamaroon View Post
After reading, my personal opinion is: a one stop extension to Wilshire/Bundy is a no brainer, and the other three stops can probably wait until Santa Monica allows greater density along wilshire (though if they build it now, it'll be cheaper before the density comes)
I agree with your personal opinion.
The writer asked "Does this area need the subway, the answer is YES.
Does it need it right now???? ummmm Not so fast. I think Metros resources should focus on the "pink line" and the Vermont Line before starting this last purple line segment. Good Article. Good Read. It should get metro thinking.. (I hope).
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Old February 1st, 2017, 03:17 AM   #2522
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Yep! I agree with both lines you mentioned. It's more important for Metro to do the Vermont line right (below grade, LRT at least but hopefully HRT) and definitely the "pink line" (which should be two lines, a spur off Crenshaw that goes up San Vicente through WeHo and another that goes straight up La Brea) before finishing off the purple line. The Purple Line does need to be finished at some point in the future though, and I think once the line has been opened to the VA for a few years (so around 2026 or so), public support will be there to finally push it to the sea.
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Old February 1st, 2017, 09:01 AM   #2523
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So, being a Vancouverite I have some odd ball questions about LA transportation if anyone wants to take a crack at answering I'd greatly appreciate it.

Why on earth isn't the MTA down there proposing a linear-induction motor based system for the Sepulveda Corridor? I'm a tunnelling engineer, but looking at this route it makes little sense to tunnel if you don't need to.

The 405 highway grade is a fairly steady shallow angle. 5 or 6 percent grade. A LIM based system could do that with a reasonable margin. Vancouver's new tunnels are of that approximate grade because that's the useful limit of our Bombardier rolling stock.

Couldn't that route just be done on an elevated guideway and save a few billion in tunnelling costs? It's not like adding in a guideway into the freeway median would be worse than any of the freeway infrastructure there now.

This has been bugging me for a while.
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Old February 1st, 2017, 04:06 PM   #2524
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LA does not want to have a singular, proprietary-technology, shuttle. The Sepulveda Pass line is to be integrated into the larger metropolitan network. That means that it needs to be compatible with existing systems.
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Old February 1st, 2017, 08:34 PM   #2525
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Also does anyone have a clue whether the LA Metro will continue with light rail or actually build a new HRT Line?
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Old February 1st, 2017, 09:36 PM   #2526
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As far as I know, the only areas where new HRT is being considered are the new Vermont Ave. line, and the Sepulveda corridor tunneled alongside the 405 (neither one though is guaranteed HRT). The LRT routes north of Wilshire are planned as below grade though, so while not HRT they will be a "subway".
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Old February 2nd, 2017, 06:19 AM   #2527
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Cool video previewing the new 7th street station entrance under the Bloc, the shopping mall across the street from the station:



Looking good so far, no more crossing the street to get to the subway! And hopefully this'll drive foot traffic and spur some faster development at the Bloc, which has has had kind've slow, moribund opening so far. (a Starbucks in the storefront right at the Metro entrance would be a good start!)
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Old February 2nd, 2017, 07:45 AM   #2528
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Quote:
Originally Posted by 00Zy99 View Post
LA does not want to have a singular, proprietary-technology, shuttle. The Sepulveda Pass line is to be integrated into the larger metropolitan network. That means that it needs to be compatible with existing systems.
At the cost of what would probably be a whole additional line though of capital costs? Some times it makes sense to have multiple rolling stock classes. You guys already have 2 completely separate systems.

LIMs aren't proprietary btw, both Bombardier and Kawasaki have made trains with them. Almost all the newer major lines in Japan use it, although there its mostly because it makes the train fit in smaller tunnels. If you wanted to interline the trains it could work, you'd just need to add a reaction rail to allow the LIM rolling stock to run.
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Old February 2nd, 2017, 04:39 PM   #2529
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Quote:
Originally Posted by Alex MacKinnon View Post
At the cost of what would probably be a whole additional line though of capital costs? Some times it makes sense to have multiple rolling stock classes. You guys already have 2 completely separate systems.
If there are already two separate systems, do you want to spend MORE money for a third?

Also, the Sepulveda Pass line is supposed to be a direct, non-stop, express crossing the pass as fast as possible in order to create the biggest differential against the current highway jam. Taking the line over the top would make it curvier and slower, not to mention much harder to construct given the tight spaces around a VERY busy highway.

Quote:
LIMs aren't proprietary btw, both Bombardier and Kawasaki have made trains with them.
Nope! The Bombardier and Kawasaki systems are both proprietary and are non-compatible.

Quote:
Almost all the newer major lines in Japan use it, although there its mostly because it makes the train fit in smaller tunnels. If you wanted to interline the trains it could work, you'd just need to add a reaction rail to allow the LIM rolling stock to run.
Adding a reaction rail to dozens of miles of lines would be very expensive.
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Old February 3rd, 2017, 08:45 PM   #2530
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Construction photos Crenshaw LAX line and Wilshire Purple line

Some construction photos of the Crenshaw LAX line and Wilshire Purple line, from the Source:




Mayor Eric Garcetti’s office gave area photographers were a tour of the Crenshaw/LAX Line yesterday. This photo was taken in one of the twin rail tunnels between the future MLK Station and Leimert Park Station. Photo by Steve Hymon/Metro.



Work beneath Wilshire Boulevard on the future Wilshire/La Brea Station for the Purple Line Extension project. Photo: Metro.
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Old February 5th, 2017, 12:43 AM   #2531
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Regional Connector Construction Photos

from the Regional Connector Facebook page



The tieback drill rig drills horizontally into the earth so that steel rods can be installed.



A view of the southwest end of the station box. From here, the future railway will turn south onto Flower St, eventually reaching 7th St/Metro Center Station.





Heavy-duty equipment for a heavy-duty task.



Excavation at 2nd/Hope started in 2016. On the northeast end of the station (under Hope St), five levels of struts form the support structure for what will be the project's deepest station.



The TBM will arrive at the 2nd/Hope Station through this wall later in the year.



Crews continue installing tiebacks, another form of excavation support. Tiebacks reinforce retaining walls, acting like anchors drilled into the ground.
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Old February 5th, 2017, 12:49 AM   #2532
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Crenshaw LAX Construction Photos

from the Crenshaw Facebook page



Installation of electrical conduits in the southbound tunnel



Installation of waterproofing and formwork



Aviation Century Bridge - Floor surfacing (deck framework)



UG4 Installation of rebar



Preparing southbound tunnel for concrete slab flooring



Staging struts at 60th St.



La Brea Bridge - drilling



Green Line Underpass - Framing removal



GREENLINE UNDERPASS - Frame 1. Deck concrete cure completed



La Brea Bridge – Crews placing the asphalt cap



Removing muck from TBM





I-405 Bridge



Aviation Century Bridge - Concrete placement







Westchester/Veterans Station – Concrete placement for the northbound platform



Westchester/Veterans Station – Concrete placement for the northbound platform





I-405 Bridge – Bent cap reinforcement



View inside of the southbound tunnel.



Entrance to the northbound tunnel. View from the Expo/Crenshaw station.



Southbound tunnel





Leimert Park station box



MLK station deck beams.



Looking into the MLK station box



Leimert Park station southbound view.



Station box



MLK station decking.





MLK station box.



Martin Luther King southbound view of tunnel entrances.
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Old February 5th, 2017, 04:12 PM   #2533
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Here is the ridership chart for the Expo Line during 2016.

As expected, there is a huge increase in ridership in the months of may and july, beacause of the opening of the Santa Monica expansion.

But it draw my attention that after that, it remains flat, even with a slight decrease, but then at the end of the year, during November and December, there is again a huge increase in ridership, almost as high as with the opening of the extension. Why would be that increase towards the end of the year?

By the way, during december, Expo line became the second most ridden line, surpassing Gold by almost 3000 on weekdays.


http://isotp.metro.net/MetroRidership/IndexRail.aspx
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Old February 6th, 2017, 08:32 AM   #2534
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That's the Red line graph!
EDIT: thanx for fixing it
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Old February 11th, 2017, 01:06 AM   #2535
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Angeli and Metro Connector


Angeli and Metro Connector
#RegionalTBM #LittleTokyo #DTLA pic.twitter.com/h1It9SHWiO
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Old February 11th, 2017, 05:58 PM   #2536
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Quote:
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That's the Red line graph!
I just copied the link as an mage and it seems it goes changing from day to day.

Here it is the graphic directly uploaded to photobucket, so it won't change.

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Old February 11th, 2017, 08:20 PM   #2537
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Note that Saturday ridership is now above previous weekday ridership.
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Old February 11th, 2017, 08:40 PM   #2538
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And that's before it crosses Downtown and reaches East LA and gets a huge boost for that...
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Old February 11th, 2017, 09:29 PM   #2539
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AND for that matter the new TOD's that are being built specifically with the Expo line in mind, such as the ones in Culver City and La Cienega/Jefferson (although that one is facing some stiff local opposition) and the debut of the "K" line from LAX's connection at Expo/Crenshaw. I don't know what a good ridership projection for the whole "E" line (i.e. the Expo + Eastside Gold line) would be once all Measure M projects are completed, but I have to imagine it'll be a pretty significant percentage of what the red line is now (~140,000/weekday).
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Old February 11th, 2017, 10:41 PM   #2540
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