HomeDiagramsDatabaseMapsForum About
     

Go Back   SkyscraperPage Forum > Discussion Forums > Transportation


Reply

 
Thread Tools Display Modes
     
     
  #7141  
Old Posted Sep 11, 2024, 3:42 AM
Busy Bee's Avatar
Busy Bee Busy Bee is offline
just a pool of mushy goo
 
Join Date: Feb 2006
Location: on the artistic spectrum
Posts: 10,999
Quote:
Originally Posted by WrightCONCEPT View Post
...unless you 4 track every subway line.
A transit nerd wet dream.
__________________
Everything new is old again

Trumpism is the road to ruin
Reply With Quote
     
     
  #7142  
Old Posted Sep 12, 2024, 7:25 PM
Quixote's Avatar
Quixote Quixote is offline
Inveterate Angeleno
 
Join Date: Apr 2006
Location: Los Angeles
Posts: 7,563
Quote:
Originally Posted by WrightCONCEPT View Post
However suggesting repealing Prop A and C dollars to build more tunnels is not a viable solution.
It's not about building more subways per se, but rather using an existing revenue stream that offers more flexibility than Measures R/M, which require the outlined projects (transit and otherwise) first be completed before "wet-dream" ideas like, say, extending heavy rail to Whittier can be realized?

Quote:
One of the limitations with interlining that DC and BART are facing now is that those branches limit capacity on the core trunks so its a balancing act, you don't want too many lines servicing corridors...unless you 4 track every subway line.
If the trunks are long and significantly longer than the branches, or if you get creative and design a system where each branch of one line forms the spine of another line (something that I'm playing around with), then I think it's less of a problem — especially if the trains are automated — because most people would be getting on and off along the trunk.

BART's issues come from the fact that its trunks consist of 3-4 lines, while WMATA is designed to get people in and out of a small, office-heavy core and because there are relatively few stations that serve urban residential areas.

With a more web-like network (i.e., less core-centric and more neighborhood-serving), the more likely you are to have short-distance trips (i.e., trunk trips). And because LA's urban structure lends itself to more transfers, a trunk is only inconvenient if the first train that arrives isn't part of the branch the transfer rider wants to travel on. Hence you want to make trunk corridors as lengthy as possible to increase the chances of the riders' destinations being situated along the trunk. I also think that seeing more trains coming and going (whether or not it's the train one wants to get on) has psychological value.

Do you agree with the general idea that interlining is a more cost-effective way to rapidly expand our HRT system in all directions (rather than stand-alone lines)?
__________________
“To tell a story is inescapably to take a moral stance.”

— Jerome Bruner
Reply With Quote
     
     
  #7143  
Old Posted Sep 12, 2024, 8:04 PM
Quixote's Avatar
Quixote Quixote is offline
Inveterate Angeleno
 
Join Date: Apr 2006
Location: Los Angeles
Posts: 7,563
The problem with the state of LA rail is that there isn't a critical mass of ridership that demands costly, transformational game-changers. The current slate of projects won't be enough to accumulate that critical mass because it's either too slow, not car-competitive, or doesn't take people where they want to go.

The public will hear about the opening of this line and that line and how it will help alleviate congestion, only to be inevitably disappointed.
__________________
“To tell a story is inescapably to take a moral stance.”

— Jerome Bruner
Reply With Quote
     
     
  #7144  
Old Posted Sep 12, 2024, 10:47 PM
sopas ej's Avatar
sopas ej sopas ej is offline
Registered User
 
Join Date: Jul 2007
Location: South Pasadena, California
Posts: 7,093
Just to confuse people? Naah, it was an agreement between Paris' RATP and LA Metro to rename a few stations in both cities briefly as a "passing the baton" between 2024 Summer Olympics host Paris to 2028 Summer Olympics host Los Angeles.


Sortiraparis


Sortiraparis


Metro Los Angeles Facebook page

Article: 2024 Olympics: six Paris metro stations change names to pass the baton to Los Angeles
__________________
"I guess the only time people think about injustice is when it happens to them."

~ Charles Bukowski

Last edited by sopas ej; Sep 12, 2024 at 11:35 PM.
Reply With Quote
     
     
  #7145  
Old Posted Sep 12, 2024, 11:28 PM
Busy Bee's Avatar
Busy Bee Busy Bee is offline
just a pool of mushy goo
 
Join Date: Feb 2006
Location: on the artistic spectrum
Posts: 10,999
They must mean Boulevard Hollywood...
__________________
Everything new is old again

Trumpism is the road to ruin
Reply With Quote
     
     
  #7146  
Old Posted Sep 13, 2024, 1:29 AM
WrightCONCEPT's Avatar
WrightCONCEPT WrightCONCEPT is offline
Registered User
 
Join Date: Dec 2016
Location: Long Beach
Posts: 211
Interesting

Quote:
Originally Posted by Quixote View Post
It's not about building more subways per se, but rather using an existing revenue stream that offers more flexibility than Measures R/M, which require the outlined projects (transit and otherwise) first be completed before "wet-dream" ideas like, say, extending heavy rail to Whittier can be realized?
Interesting twist.

However, if that corridor needs more grade separations (which based off past posts you have implied) in the form of subway tunnels, you're back to square one where it is best to accelerate those projects and at least get the core minimum operating segments (MOS) completed before moving to the next phase or including new projects to politically leap frog over other projects.

Which goes back to thankfully in my role as an advocate for the Business Community forced the Metro Board to have a "Come to Jesus" moment in 2018-19 to realistically look at the cashflow and develop core projects to complete so that the board stays on task and not get distracted to add other projects (Vermont HRT, LA Streetcar, Pico/Flower subway station with the Washington/Flower junction grade separated) without realizing the cash flow and try to politically leapfrog no matter how tempting all of which wastes more scarce Measure M, Prop A and C resources.

It's not perfect but its slowly improving.

Quote:
If the trunks are long and significantly longer than the branches, or if you get creative and design a system where each branch of one line forms the spine of another line (something that I'm playing around with), then I think it's less of a problem — especially if the trains are automated — because most people would be getting on and off along the trunk.
With that idea for one seat rides - if I am reading what you are suggesting correctly- you are sacrificing the strengths of frequency and reliability in the automation to have a route go on multiple trunks? Which means you will need a lot of passing tracks and track duplication.

Just take a page out of Paris Metro, keep the trunk with a single route (Like WMATA's Red Line) on that line and have high frequency and design the transfer stations require a minimum of vertical circulation to make them easier and intuitive to use. If you are running service at a high frequency and you need to transfer, the transfer time is minimal. Add their Metro with an overlay of the RER along with their surface LRT lines that they have expanded over the last two decades and that is a great network.

We are building a transit foundation, just stay the course and at least complete the BRT/Bus Only lane network, improve bus/rail operations along with finishing the pillar projects.

Quote:
BART's issues come from the fact that its trunks consist of 3-4 lines, while WMATA is designed to get people in and out of a small, office-heavy core and because there are relatively few stations that serve urban residential areas.

With a more web-like network (i.e., less core-centric and more neighborhood-serving), the more likely you are to have short-distance trips (i.e., trunk trips). Because LA's urban structure lends itself to more transfers, a trunk is only inconvenient if the first train that arrives isn't part of the branch the transfer rider wants to travel on. Hence you want to make trunk corridors as lengthy as possible to increase the chances of the riders' destinations being situated along the trunk. I also think that seeing more trains coming and going (whether or not it's the train one wants to get on) has psychological value.

Do you agree with the general idea that interlining is a more cost-effective way to rapidly expand our HRT system in all directions (rather than stand-alone lines)?
Depends on how wide of a network we are trying to serve?

I think Paris, Madrid and many German Stadbahn/S-Bahn metro systems is the model LA should mimic. Frequent tight grid of core lines with frequent regional lines with multiple core connections to/from urban lines.

For example, I had suggested and advocated for the Southeast Gateway Corridor become a electrified Metrolink line because;
  • 1) it is not sharing tracks with the A Line or any other LRT line,
  • 2) The northern terminal is Union Station,
  • 3) avoids a needless and costly tunnel to reach Union Station by combining this project with the Link US to gain more Federal Dollars and help spearhead electrifying Metrolink on some core routes like Antelope Valley or the San Bernardino Line.
  • But alas right now that got shot down...at the moment.

FRUGAL comprehensive planning and thinking is what is needed -which I believe you are articulating here- because you have to be creative to figure out ways to expand the system with limited resources and do more with less. I can go back 6-7 years when all the board's attention for damn near the first week of Measure M dollars being collected was to look at let's grade separate Washington/Flower and I am thinking, Board, you have this Southeast Gateway project that is going to require a costly tunnel, couldn't we try to combine efforts to save resources?

Quote:
The problem with the state of LA rail is that there isn't a critical mass of ridership that demands costly, transformational game-changers. The current slate of projects won't be enough to accumulate that critical mass because it's either too slow, not car-competitive, or doesn't take people where they want to go.

The public will hear about the opening of this line and that line and how it will help alleviate congestion, only to be inevitably disappointed.
I think HLA that voters approved in March will slow down the expansion of curb lane BRT network on busy bus corridors throughout the city/region. Why is that important? This is where we start mapping out and proving where the future rail corridors will go! And this is a tried and true way to comprehensively and systematically expand the system.

I personally believe the way we are building out the system once we finish;
MOS segments of the A Line Eastside extension to the Citadel and Southeast Gateway, we will start to build the web-like grid network (with the other pillar projects K Line South to Torrance & North to Hollywood and Sepulveda Pass, complete the C Line to Norwalk/Santa Fe Springs, B Line to Burbank Airport)that we need, combined with Metrolink service improvements and double tracking on core lines (Antelope Valley, Ventura County Line to Chatsworth, San Bernardino Line) we can get a lot accomplished and serve more riders.
__________________
"Statistics are used much like a drunk uses a lamp post: for support, not illumination." -Vin Scully

The Opposite of PRO is CON, that fact is clearly seen.
If Progress means moves forward, then what does Congress mean?

Last edited by WrightCONCEPT; Sep 13, 2024 at 1:47 AM.
Reply With Quote
     
     
  #7147  
Old Posted Sep 13, 2024, 4:47 AM
Quixote's Avatar
Quixote Quixote is offline
Inveterate Angeleno
 
Join Date: Apr 2006
Location: Los Angeles
Posts: 7,563
Quote:
Originally Posted by WrightCONCEPT View Post
Interesting twist.

However, if that corridor needs more grade separations (which based off past posts you have implied) in the form of subway tunnels, you're back to square one where it is best to accelerate those projects and at least get the core minimum operating segments (MOS) completed before moving to the next phase or including new projects to politically leap frog over other projects.
Well, first we need to figure out how to reduce the cost of subway construction. I think Bechtel's proposed "offset" method for the Sepulveda corridor is ingenious, as it makes platform extensions relatively easy when more capacity is needed. The second thing we need to do is build elevated and even at-grade HRT (conventional stock) where possible, which Metro is averse to for whatever reason.

Quote:
With that idea for one seat rides - if I am reading what you are suggesting correctly- you are sacrificing the strengths of frequency and reliability in the automation to have a route go on multiple trunks? Which means you will need a lot of passing tracks and track duplication.
The basic premise for interlining is to create long trunks with proven ridership because:

1) It makes use of existing infrastructure and high ridership, rendering branch creation/extension more cost-effective. Think about how much more expensive the D Line subway would be if it didn't have the shared trackage with the B Line between US and Wilshire/Vermont.
2) Yes, it creates more one-seat ride opportunities (if you live along the trunk). Be able to go more places without needing to transfer makes the system more useful, even if frequency takes a bit of a hit. Having to get off a train and go up or down stairs/escalators to (maybe) catch a transfer can be a hassle.

Just take a page out of Paris Metro, keep the trunk with a single route (Like WMATA's Red Line) on that line and have high frequency and design the transfer stations require a minimum of vertical circulation to make them easier and intuitive to use. If you are running service at a high frequency and you need to transfer, the transfer time is minimal. Add their Metro with an overlay of the RER along with their surface LRT lines that they have expanded over the last two decades and that is a great network.[/QUOTE]

But the Paris Metro is already built out. Here in LA, we can't afford to build a bunch of lines from scratch. That's the whole premise of my argument.

What I have always agreed with you on the most is that Metrolink is an extremely undervalued/underutilized. But like the RER, I don't think Metrolink should be a substitute for Metro Rail. Why should the A Line have (or it did once upon a time) 6-minute peak headways while Metrolink operates every 15 minutes? Metrolink is not a traditional commuter rail network like LIRR or Metra but more like ACE or VRE (Virginia Railway Express). I believe its value and potential lies in the fact that it connects the outer counties with LA.

Quote:
I think Paris, Madrid and many German Stadbahn/S-Bahn metro systems is the model LA should mimic. Frequent tight grid of core lines with frequent regional lines with multiple core connections to/from urban lines.
I certainly don't think of those as "tight-grid" systems. A picture-perfect example of such is the Beijing Subway.
__________________
“To tell a story is inescapably to take a moral stance.”

— Jerome Bruner
Reply With Quote
     
     
  #7148  
Old Posted Sep 13, 2024, 6:17 AM
jmecklenborg jmecklenborg is online now
Registered User
 
Join Date: Jul 2003
Posts: 3,312
Quote:
Originally Posted by Quixote View Post
That's just putting lipstick on a pig. The Expo Line is fundamentally flawed insofar as the route it traverses between Downtown and Santa Monica is less direct than the 10 Freeway. And the Blue Line along Washington is also another example of how at-grade LRT just follows the street grid, rendering it second-fiddle to the car.
The Expo Line is fundamentally flawed in that it was a)spun as a major transit corridor when it's a secondary-at-best corridor and b)the fact that is was completed to DT Santa Monica was used as an excuse to not complete the u/c Wilshire heavy rail subway line to DT Santa Monica.
Reply With Quote
     
     
  #7149  
Old Posted Sep 13, 2024, 3:54 PM
WrightCONCEPT's Avatar
WrightCONCEPT WrightCONCEPT is offline
Registered User
 
Join Date: Dec 2016
Location: Long Beach
Posts: 211
Quote:
Originally Posted by Quixote View Post
Well, first we need to figure out how to reduce the cost of subway construction. I think Bechtel's proposed "offset" method for the Sepulveda corridor is ingenious, as it makes platform extensions relatively easy when more capacity is needed. The second thing we need to do is build elevated and even at-grade HRT (conventional stock) where possible, which Metro is averse to for whatever reason.
I go back to Frugal and simple. A lot of that I feel can be done with first our LRT by going to 4 car LRVs operation because once you strategically grade separate it makes no sense to leave the same max train length. Add an extra train for capacity, that will then get Metro to see that expanding the HRT on elevated viaducts and grade separated surface Railroad ROW could work.

Quote:
The basic premise for interlining is to create long trunks with proven ridership because:

1) It makes use of existing infrastructure and high ridership, rendering branch creation/extension more cost-effective. Think about how much more expensive the D Line subway would be if it didn't have the shared trackage with the B Line between US and Wilshire/Vermont.
2) Yes, it creates more one-seat ride opportunities (if you live along the trunk). Be able to go more places without needing to transfer makes the system more useful, even if frequency takes a bit of a hit. Having to get off a train and go up or down stairs/escalators to (maybe) catch a transfer can be a hassle.
The problems with that is unless each branch can get by on the same frequency you will overload one line over the other, I cite the DC Metro with the Orange, Silver and Blue Lines sharing the trunk.
West of the Capitol the Orange and Silver Lines need more frequent service at the expense of the Blue Line which impacts Blue Line service east of the Capitol where more demand is needed.
So if multiple lines share, it has to be a shorter trunk not longer to ensure you are not degrading service.



Quote:
But the Paris Metro is already built out. Here in LA, we can't afford to build a bunch of lines from scratch. That's the whole premise of my argument.
But we need to do the dirty-dirty and build line by line, just like Paris did. One thing Paris does well that we can start doing because we have a funding stream for is consistently build out our projects and continual incremental expansion, just has Paris has continually done since its first Metro line in 1900.

Quote:
What I have always agreed with you on the most is that Metrolink is an extremely undervalued/underutilized. But like the RER, I don't think Metrolink should be a substitute for Metro Rail. Why should the A Line have (or it did once upon a time) 6-minute peak headways while Metrolink operates every 15 minutes? Metrolink is not a traditional commuter rail network like LIRR or Metra but more like ACE or VRE (Virginia Railway Express). I believe its value and potential lies in the fact that it connects the outer counties with LA.
I am suggesting it as a substitute however, it is an untapped resource. However within the LA County/Greater LA Metro service area, why not have frequent 15 minute service (for example the AV Line to Santa Clarita, VC Line to Chatsworth, SB Line to Montclair) and then outside of that they operate every 30 minutes. This service expansion coupled with transforming the land-use planning to be more like town centers at these stations will improve ridership longer term.

The key point that I will bring up is that Metrolink needs to improve its frequency and do the incremental capital and operational improvements needed to make those other investments to improve intermodal connections to the Metro like a C Line extension to Norwalk/Santa Fe Springs and or B Line extension to Burbank Airport worth while.
__________________
"Statistics are used much like a drunk uses a lamp post: for support, not illumination." -Vin Scully

The Opposite of PRO is CON, that fact is clearly seen.
If Progress means moves forward, then what does Congress mean?

Last edited by WrightCONCEPT; Sep 13, 2024 at 4:13 PM.
Reply With Quote
     
     
  #7150  
Old Posted Sep 13, 2024, 4:02 PM
WrightCONCEPT's Avatar
WrightCONCEPT WrightCONCEPT is offline
Registered User
 
Join Date: Dec 2016
Location: Long Beach
Posts: 211
Quote:
Originally Posted by jmecklenborg View Post
The Expo Line is fundamentally flawed in that it was a)spun as a major transit corridor when it's a secondary-at-best corridor and b)the fact that is was completed to DT Santa Monica was used as an excuse to not complete the u/c Wilshire heavy rail subway line to DT Santa Monica.
Fundamentally flawed, What a load of steaming hooey!

Expo was never spun as a major corridor., even back in 1992 when Metro purchased the Right-of-way.
  • It was built because there is an available ROW,
  • Potential (that has been realized) that has similar characteristics to the Blue Line between LA and Long Beach
  • the Westside population and jobs warranted some high capacity service other than a rapid bus until the Wilshire Subway got back off the ground because of the Prop A and C subway ban of 1998.

With the current high ridership demand between Downtown/USC and West LA it shows that this has been a wise investment for Metro.
__________________
"Statistics are used much like a drunk uses a lamp post: for support, not illumination." -Vin Scully

The Opposite of PRO is CON, that fact is clearly seen.
If Progress means moves forward, then what does Congress mean?
Reply With Quote
     
     
  #7151  
Old Posted Sep 13, 2024, 6:16 PM
numble numble is offline
Registered User
 
Join Date: Sep 2006
Posts: 227
Quote:
Originally Posted by Quixote View Post
The first step in breaking free of the Measure-R-based trap is to repeal the Props A/C subway tunnel ban. I don't know why this hasn't been discussed in earnest, as I think it would face little voter opposition.

Prop A allocates 35% for rail development, and both A/C set aside 40% for "discretionary" use.

Props A/C pull in a combined $2.2 billion annually. So that's $1.265 billion in revenue each year that in theory could be used for subway construction (if the ban is repealed). After 4-5 years, you have enough local funds for both D Line to Santa Monica and Vermont HRT to show the Feds and ask them to pay for half the capital costs.

I'm sure though that some of those funds are being paired with R/M to finance and accelerate other projects currently on the table, although not for game-changers like the K Line northern extension or much of Sepulveda.
There is actually little tangible benefit to spending money on a voter campaign to remove the Prop A/C ban on subway construction. First off, the ban doesn't apply to station construction, which is the most expensive portion of subway projects. Secondly, Metro finance staff have demonstrated multiple times that they can use accounting maneuvers to get around that ban very easily. The vast majority of Measure R/M projects are not subway projects, so they just swap Prop A/C money for Measure R/M money if they ever need to access Prop A/C funds for subway construction. They have done this time and time again:

Prop A/C was used for cost overruns on Purple Line two times: https://x.com/numble/status/13936841...r8fihK6NT7JHrQ

https://x.com/numble/status/12945007...r8fihK6NT7JHrQ

Swapping means that Prop A/C will be used to pay for Measure R/M projects and the freed up Measure R/M money then goes to the subway project. So in the first link, Prop A money was used to pay for $83.57m of the K Line instead of Measure R, freeing up $83.57m of Measure R money that can be spent on subway construction. In the second link, Prop A and C money was used to pay for $200m of the K Line instead of Measure R, freeing up $200m of Measure R money that can be spent on subway construction.

Last edited by numble; Sep 13, 2024 at 6:39 PM.
Reply With Quote
     
     
  #7152  
Old Posted Sep 13, 2024, 6:55 PM
WrightCONCEPT's Avatar
WrightCONCEPT WrightCONCEPT is offline
Registered User
 
Join Date: Dec 2016
Location: Long Beach
Posts: 211
Quote:
Originally Posted by numble View Post
There is actually little tangible benefit to spending money on a voter campaign to remove the Prop A/C ban on subway construction. First off, the ban doesn't apply to station construction, which is the most expensive portion of subway projects. Secondly, Metro finance staff have demonstrated multiple times that they can use accounting maneuvers to get around that ban very easily. The vast majority of Measure R/M projects are not subway projects, so they just swap Prop A/C money for Measure R/M money if they ever need to access Prop A/C funds for subway construction. They have done this time and time again:

Prop A/C was used for cost overruns on Purple Line two times: https://x.com/numble/status/13936841...r8fihK6NT7JHrQ

https://x.com/numble/status/12945007...r8fihK6NT7JHrQ

Swapping means that Prop A/C will be used to pay for Measure R/M projects and the freed up Measure R/M money then goes to the subway project. So in the first link, Prop A money was used to pay for $83.57m of the K Line instead of Measure R, freeing up $83.57m of Measure R money that can be spent on subway construction. In the second link, Prop A and C money was used to pay for $200m of the K Line instead of Measure R, freeing up $200m of Measure R money that can be spent on subway construction.
Beautifully put...A/C gives Metro flexibility to maneuver with Measure R and M projects.
__________________
"Statistics are used much like a drunk uses a lamp post: for support, not illumination." -Vin Scully

The Opposite of PRO is CON, that fact is clearly seen.
If Progress means moves forward, then what does Congress mean?
Reply With Quote
     
     
  #7153  
Old Posted Sep 13, 2024, 7:25 PM
mousquet's Avatar
mousquet mousquet is offline
Registered User
 
Join Date: Jan 2011
Location: Greater Paris, France
Posts: 4,698
Quote:
Originally Posted by Busy Bee View Post
They must mean Boulevard Hollywood...
Looks like it's pissing off xenophobic and anti-American freaks from the far right and far left in France, so it's got to be good.

Video Link


Guess it's just a little kiss between the 2 cities, so to speak.
No big deal.
Reply With Quote
     
     
  #7154  
Old Posted Sep 14, 2024, 3:33 AM
hughfb3 hughfb3 is offline
Registered User
 
Join Date: May 2006
Location: Los Angeles
Posts: 862
Foothill Gold Line has released an update video. This line is by far the most beautifully designed transit project we have in my eyes. Everything the Gold Line construction authority has done has been on time, no fuss or controversy and even the oldest section from DTLA to Pasadena is still better looking than the “modern” elements of much newer lines like the Expo phase 1 with its high-maintenance, non-functional, modern lighting scheme that has looked busted for the past several years as there are too many unnecessary lights for Metro to keep up just for the sake of being modern and futuristic... but the future will always come, then go. It takes a lot to keep up with non functional stuff and Metro has completely let go of keeping those canopy lights fully lit.

The simple classical functional design will far outlast the modern style of many of the other lines out there

https://youtu.be/5B3HaNd2ACU?si=Behdf_No1p07SE1D

Last edited by hughfb3; Sep 14, 2024 at 3:45 AM.
Reply With Quote
     
     
End
 
 
Reply

Go Back   SkyscraperPage Forum > Discussion Forums > Transportation
Forum Jump



Forum Jump


All times are GMT. The time now is 6:22 AM.

     
SkyscraperPage.com - Archive - Privacy Statement - Top

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.