Yes, that makes sense (and a 130th st stop would help too on the mainline), but the density goes down quite a bit south of Harvey. The fact that Harvey has the south suburban bus hub though means that frequent service to Harvey is certainly justified.

Edit: I finished drawing up my RLX alternative proposal, with some modifications (only spot-checked, so maybe some egregious errors):

https://i.imgur.com/B7FNnuu.png

Some notes:


- Altgeld Gardens gets service on a "Hammond Shuttle" as well as more frequent, albeit less close service at 130th on the mainline. This may not be completely jusfied service-wise, but politically it would help, and providing Hegewisch with reasonable service would help connect that community more to the city. At that point, it's almost silly not to connect to Hammond, but Indiana would have to pony up a bit.
- Currently the Harvey local takes about 50 minutes. This "mainline service" has several stops added and removed, so hopefully it takes about the same. That's about the edge of what is reasonable I think. With an ~hour service time (including turnaround) it actually works out ok operationally I think.
- I also included a potential South Chicago line extension to Whiting, serving the East Side. This would have new stops on the south side of 95th (near Calumet Fisheries), Ewing, and the State Line (not sure exactly how that would work with the N-S yard there). This could continue to Whiting if Indiana ponies up, and maybe even farther if Indiana pays for it.
- Extending the Green Line to 63rd St makes a lot more sense with good Metra service, I think, although it may not happen.

I'm by no means an expert on train scheduling or the specific capacity constraints of the IC mainline, but I'll take your word for it. I can see how running the Blue Island trains as a shuttle could free up capacity but would the mainline need that much more capacity if they increased frequencies?

Tangentially related: If the Metra RIL gets electrification, would that raise the possibility of any service changes on the existing ME lines? I would like to see one excellent Blue Island station come out of it.

And while we're at it, and to come full circle back to the Red Line Extension, does anyone know if the idea of creating a new Metra line branching off the Metra RIL @ 79th and running down the UP through Roseland and Pullman instead of the bonkers RLE propsal using that row? You could have station at Vincennes/83rd and than maybe one around 95th and then hit all the stations called for in the lame RLE proposal.

I can't imagine that makes much sense unless it's continued to Dolton/South Holland/Chicago Heights or something.

You're right. And thank you for reminding me of my long held hope to see a new Dolton-Cal City-Lansing ME extension along the old removed PRR line to the state line. This would also create the potential to implement the Southeast Service long planned for as they would share tracks to Dolton.

So yes, if Metra RIL electification is pulled off, have a line leave the RIL at 79th, running through Washington Heights, Roseland, Pullman and joining again the ME and then branching SE in Dolton or not joining the ME and continuing through Riverdale then turning SE in Dolton. Oh the potential.

As intriguing as it sounds, the old PRR ROW is not free and clear from Dolton to the state line.

There are houses built on the ROW along Greenwood Ave., between Sibley Blvd. and the Bishop Ford. The ROW would cut through the middle of a Home Depot parking lot at 170th and Torrence, and in Lansing there is a public park and Lansing's outdoor performance space, Fox Pointe to contend with.

But if those obstacles could be overcome, Metra might be able to partner with Amtrak on rebuilding those tracks. As has been mentioned recently, as part of its 2035 Vision, Amtrak plans on 8 round trips between CHI and IND with a 3 and a half hour runtime. Avoiding slow freight traffic getting out of Chicago would be key to reducing travel times.

If the Pennsy tracks could be rebuilt and CREATE Grand Crossing gets done, the new Hoosier State could take the soon-to-be-former Southwest Service tracks out of Union Station, a brief run on the NS Chicago Line (or a set of new, Amtrak-owned tracks) to Grand Crossing, onto the ME to the rebuilt PRR line at Dolton, turning onto the CSX Monon Sub just over the state line.

Failing that, the new Hoosier State might take the same route onto the ME, then onto the South Shore, utilizing the future West Lake extension onto the Monon Sub at Dyer.

Red-Purple Bypass Continues To Progress In Lake View
Chicago YIMBY | BY: JACK CRAWFORD | 7:30 AM ON MAY 31, 2021

(all images below are from the above article... where more are available)
https://chicagoyimby.com/wp-content/...1/05/6-74.jpeg

https://chicagoyimby.com/wp-content/...1/05/5-91.jpeg

https://chicagoyimby.com/wp-content/.../05/1-319.jpeg

Yes, there have been infringements over the years that would have to be removed, though I think a good 95% is clear. Good points thereafter.

Metra Electric has a lot of potential that could be unlocked at relatively low cost. Hell, there is a full flying junction for the South Chicago branch and four tracks all the way to Kensington. But Kensington itself is a mess and needs to be rebuilt as a two-platform station (or maybe 3 platform). The four track mainline has a lot of capacity, but to unlock it you need to run trains with a lot of precision and predictability.

I'm not sure what Metra means by "electrifying" RID, it's very unclear. There are a lot of overlapping plans for the future of RID that aren't necessarily compatible. It's an appealing corridor for planners because it's publicly-owned, largely grade-separated from other railroads and relatively free of freight.

These are the various ideas that I have heard from planners and officials:
-Shift SWS trains onto RID at 79th St
-Add 3rd track north of 79th St to 15th St
-Shift Amtrak St Louis trains onto RID at Joliet, with a link to Union Station at 40th St
-Shift Amtrak Michigan/East Coast trains onto RID at Englewood, with a link to Union Station at 16th St (instead of 40th) (this would also include Carbondale/New Orleans trains if Grand Crossing is built)
-Electrify RID for Metra operations

My best guess is that Metra needs to increase the average speed of their trains so that they can accommodate the nonstop Amtraks without blowing multiple holes in the daily schedule. Amtrak trains tend to arrive at unpredictable times too, due to freight conflicts elsewhere on the system that cause frequent delays. So it's best to have fast Metra service with plenty of flexibility to slot the Amtraks in whenever they get to Chicago.

The best way to speed up service is to electrify, switch to high-performance trains, and raise platforms to minimize dwell times. This is what Caltrain is doing to accommodate intercity trains on a busy commuter corridor, because it's cheaper than 4-tracking the whole thing. Of course, "electrifying" with battery locomotives does none of this. Same slow-ass trains, but even heavier this time! At least the air is sparkling!

IF St Louis trains move onto RID, they would no longer have a mid-suburban stop at Summit. Amtrak would probably try to replace the Summit stop with another stop along the RID corridor. I would probably assume Midlothian since it's the closest to the Tri-State and has a very nice stationhouse with room for an Amtrak ticket agent. However, Blue Island has a strong case to host an Amtrak stop if they want it, with multiple bus connections existing and the ME transfer. They could probably support a parking structure and certainly a more elaborate station.

I think only the Beverly/Morgan Park Branch of the RID really makes sense for electrification? Not sure there's much case past Blue Island.

Well certainly the "Suburban Branch" of RID would see benefits from electrification, yeah. But you lose a lot of the scheduling benefits if you don't go all the way to Joliet.

Trains going south of Blue Island could probably express north of there to achieve a speed that is comparable to Amtrak, but between Joliet and Blue Island the diesel-hauled trains would still provide an obstacle to Amtrak since they're making a lot of stops in the suburbs. That's why IDOT's original plan for the St Louis corridor included a 3rd track along the entire RID from Joliet to 15th St. But if they can electrify at Caltrain prices, full electrification is cheaper than a 3rd track.

I'll put it another way: right now, the scheduled time on Rock Island from Joliet to 35th is 37 miles in 60 minutes at an average speed of, well, 37mph. (35th is roughly where the St Louis trains would break off to go to Union Station). Per IDOT's own planning documents, St Louis trains can cover the same distance in only 25 minutes at an average speed of ~90mph. So unless Metra gets faster or Amtrak goes slower, or you add passing tracks, this means there needs to be a ~45-minute gap between Metra trains every time an Amtrak comes through!

Slowing down Amtrak doesn't help achieve the goal of "high speed service" to St Louis, and adding passing tracks is tricky because you need to know exactly where/when the meets occur. But Amtrak trains arrive at unpredictable times, so you need to basically add a full 3rd track to the entire shared line - very costly. Speeding up Metra trains with electrification is the best way to get Metra and Amtrak to share a high-quality schedule, and offers more bang-for-buck in terms of speeding up Metra trains from the status quo, which passing tracks cannot offer.

A picture is worth a thousand words. Thanks for that. So in essence this Red Line Extension should really be paired with RTA/Metra Coordination rather than the typical operating silos.

With eye on CTA’s next big thing, Red Line South extension, Lightfoot breaks ground on next phase of North Side overhaul
Chicago Sun-Times | By Fran Spielman Jun 2, 2021, 4:33pm CDT

CTA’s Massive Reconstruction Project For Red And Purple Lines Includes New Stations, Tracks
By CBS 2 Chicago StaffJune 2, 2021 at 6:33 pm
• Video Link

Does anyone know how the track replacement is going to work? Will they tear down the embankment on the east and completely rebuild it? And how do you do that without damaging the west side? Sheet pile wall?

It’s going to be really impressive to watch. Here is a good Instagram I found with a view of the Bryn Mawr site:
https://instagram.com/brynmawrcta_st...dium=copy_link

Here is a diagram of Phase 1. Looks like they will only shave off the crown of the existing embankment, and they will need to chip out full-height sections at each pier of the new structure. The girder spans are around 100' so around 6-7 piers per block. They will also chip out full height sections where required for station entrances.

I don't think there will be much need for a retaining wall/sheet piling along the centerline except at stations and a little bit at each street crossing since they are replacing the old abutments along each sidewalk. Outside of those areas, there isn't much height difference, they can probably just slope the soil.

https://i.imgur.com/VDS00XP.png

Phase 2 is simpler since the piers will be offset from the existing west retaining wall - for this stage they will just park a caisson drill on top of the embankment and drill from there, no removal needed.

https://i.imgur.com/zeDRAUX.png

Man those things are gonna be graffiti central. I hope Cta thought of that.

Yeah probably. The remains of the embankment will form a bunch of block-long "islands". CTA is supposed to secure them with fencing but that's never kept graffiti artists out before. It might be easier to just plant a bunch of bushes so the graffiti artists don't get big unbroken canvases.

*snort*

I'm pretty sure it was meant in the sense of "con artists".

From someone who used to participate in my earlier years...trust me... If there's a will, there's a way.

Nice video update of the Belmont flyover.

• Video Link