Should be fixed in Blueprint, Picture is faulty
4-way intersections: Throughput and deadlocks [image heavy]
-
tsiebecker
- Manual Inserter
- Posts: 2
- Joined: Mon Jan 11, 2021 8:00 am
- Contact:
-
Omnifarious
- Filter Inserter
- Posts: 276
- Joined: Wed Jul 26, 2017 3:24 pm
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Is there an analysis of how this compares with an ordinary LHD roundabout without the extra cross-tracks throught the middle of the circle?tsiebecker wrote: ↑Mon Jan 11, 2021 8:04 am You can, but not with RHD. Take mmmPI's layout, switch it to LHD, and you get full signalling.
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Not that i know of, but it should yield pretty similar result to the "crossabout" vs "roundabout" shown in page 1. Given this is a smaller "crossabout".Omnifarious wrote: ↑Thu Jan 14, 2021 3:59 am Is there an analysis of how this compares with an ordinary LHD roundabout without the extra cross-tracks throught the middle of the circle?
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Not analytically, no. Observational practice from emplacing the RHD version in my factory is that it has significantly better flow compared to the plain roundabout, and the LHD version should be further superior to that.Omnifarious wrote: ↑Thu Jan 14, 2021 3:59 amIs there an analysis of how this compares with an ordinary LHD roundabout without the extra cross-tracks throught the middle of the circle?tsiebecker wrote: ↑Mon Jan 11, 2021 8:04 am You can, but not with RHD. Take mmmPI's layout, switch it to LHD, and you get full signalling.
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Can someone test this junction for me? I have not seen this one around.
This is LHD for 11 car trains.
This is LHD for 11 car trains.
- greatcrossv1.PNG (484.01 KiB) Viewed 12258 times
-
hansjoachim
- Filter Inserter
- Posts: 252
- Joined: Wed Apr 26, 2017 7:03 pm
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Updated the testbenchmap for 1.1
Thanks to Kano96 for updating the mod
viewtopic.php?f=194&t=94795&p=533570#p533570
Thanks to Kano96 for updating the mod
viewtopic.php?f=194&t=94795&p=533570#p533570
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Compact links are dead
-
xxJeevesxx
- Manual Inserter
- Posts: 1
- Joined: Thu Feb 04, 2021 11:11 pm
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
It seems several links are dead. For those of you who are interested I complied a list using the wayback machine (scripting to the rescue). The attached has all the blueprint strings but also the link in case you can't read the full string. Hope it helps!
- Attachments
-
- intersectionData.csv
- (935.81 KiB) Downloaded 583 times
Last edited by xxJeevesxx on Thu Feb 04, 2021 11:21 pm, edited 1 time in total.
Re: 4-way intersections: Throughput and deadlocks [image heavy]
I couldn't find this one in the two lane section
- Attachments
-
- Screenshot (21).png (1.18 MiB) Viewed 11478 times
Re: 4-way intersections: Throughput and deadlocks [image heavy]
That is similar to "Wide B" and "Crushed Wide".
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Hello guys, i know this is a nooby question to ask, but i just dont unterstand all the mechanisms behind a clean 4-way intersection. I read some of the replys of this thread and also the original post. But i still struggle with finding a good interstection. I want to build a first time Cityblock base with a Rail based Cityblock design (every cityblock is seperated by rails). I want to design my own Cityblock but i realy struggle with the intersection in each corner of a Block. So i decided to look one up and found this thread. But the original post is so "old" and i dont know if those intersections are still "good" and most of them the link for the blueprint doesnt work.
So in the end iam just looking for a 4-way intersection which high throuput / size ratio (doesnt has to have the highest throuput just a one that isnt too bad and doenst deadlock itself). If someone could help me out or maybe knows a collection like in the original post (but with working links) that would be super nice.
So in the end iam just looking for a 4-way intersection which high throuput / size ratio (doesnt has to have the highest throuput just a one that isnt too bad and doenst deadlock itself). If someone could help me out or maybe knows a collection like in the original post (but with working links) that would be super nice.
-
NotRexButCaesar
- Smart Inserter
- Posts: 1133
- Joined: Sun Feb 16, 2020 12:47 am
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
All these intersections should still be just as good as before. Rail and chain signals still behave the same way.
What spacing of rails are you using? If you have 4 tiles between them, I would recommend the Celtic knot. If you have 6 or 8 tiles spacing, I would recommend this one or similar:Marco3104 wrote: ↑Fri Feb 26, 2021 12:59 pm So in the end iam just looking for a 4-way intersection which high throuput / size ratio (doesnt has to have the highest throuput just a one that isnt too bad and doenst deadlock itself). If someone could help me out or maybe knows a collection like in the original post (but with working links) that would be super nice.
(It can be compacted and therefore have more throughout at larger sizes)Up here wrote: ↑Thu May 11, 2017 12:03 am [...]
Ⅲ—Crevez, chiens, si vous n'étes pas contents!
Re: 4-way intersections: Throughput and deadlocks [image heavy]
What spacing of rails are you using? If you have 4 tiles between them, I would recommend the Celtic knot. If you have 6 or 8 tiles spacing, I would recommend this one or similar:
[/quote]
Thank you very much for your fast reply, highly appreciated!
Honestly it doesnt realy matter to me if the spacing is 6 or 8 tiles. My plan was from the start to use large Cityblocks. Untill now i always used the one from Nillaus (100x100) but they are too small for me. Therefore i searched for bigger ones like 7x7 chunk blocks. And i actually found those two here which i like, but i think the intersections in the corners have maybe low througput or maybe can cause deadlocks? Iam unsure becaus iam not confident enough to judge them and i think i also read somewhere that roundabouts are not optimal and can caus long waiting times. I liked them becaus they have the size that i like. Anway these are the two:
http://fbpviewer.trakos.pl/b/HsHC3NphUX ... AaYnVQBva4
http://fbpviewer.trakos.pl/b/dh6yFwUbse ... qhGzaXKzBU
And another one which smaller blocks only for the rails, which i realy like, but i only have a picture and cant find the intersection he used:
https://i.imgur.com/KV5ykTC.jpeg
In the End i though to myself i can design one with the size i like, but for that i need a intersection with hight throuput and low deadlock potential. Therefore I wanted to ask maybe by coincedence you know one with 4 rails in each direction like the one you suggested already. If not i will orientate myself on the ones from the original post and take one of those
(It can be compacted and therefore have more throughout at larger sizes)Up here wrote: ↑Thu May 11, 2017 12:03 am [...]
[/quote]
Thank you very much for your fast reply, highly appreciated!
Honestly it doesnt realy matter to me if the spacing is 6 or 8 tiles. My plan was from the start to use large Cityblocks. Untill now i always used the one from Nillaus (100x100) but they are too small for me. Therefore i searched for bigger ones like 7x7 chunk blocks. And i actually found those two here which i like, but i think the intersections in the corners have maybe low througput or maybe can cause deadlocks? Iam unsure becaus iam not confident enough to judge them and i think i also read somewhere that roundabouts are not optimal and can caus long waiting times. I liked them becaus they have the size that i like. Anway these are the two:
http://fbpviewer.trakos.pl/b/HsHC3NphUX ... AaYnVQBva4
http://fbpviewer.trakos.pl/b/dh6yFwUbse ... qhGzaXKzBU
And another one which smaller blocks only for the rails, which i realy like, but i only have a picture and cant find the intersection he used:
https://i.imgur.com/KV5ykTC.jpeg
In the End i though to myself i can design one with the size i like, but for that i need a intersection with hight throuput and low deadlock potential. Therefore I wanted to ask maybe by coincedence you know one with 4 rails in each direction like the one you suggested already. If not i will orientate myself on the ones from the original post and take one of those
-
NotRexButCaesar
- Smart Inserter
- Posts: 1133
- Joined: Sun Feb 16, 2020 12:47 am
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Mine looks like this:
image
Here are the rest of my rail blueprints if you would like to see them:https://github.com/AmericanPatriot6f0/F ... %20Network
Ⅲ—Crevez, chiens, si vous n'étes pas contents!
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Thank you for this! It seems like half the blueprint pastebins these days are down. Really frustrating. I wonder what happened.xxJeevesxx wrote: ↑Thu Feb 04, 2021 11:19 pmIt seems several links are dead. For those of you who are interested I complied a list using the wayback machine (scripting to the rescue). The attached has all the blueprint strings but also the link in case you can't read the full string. Hope it helps!
Re: 4-way intersections: Throughput and deadlocks [image heavy]
btw if anyone is interested I made a variation on Tallinu's Whirlpool design which uses my preferred track spacing (2 empty rail tiles in between, rather than 3). It's RHD, sized for 6-car trains, and allows U-turns. I just tested it and it has comparable throughput to the original. A few tpm lower for some reason, but very solid. Also has the kind of nice property that it fits perfectly around exactly tiled roboports:
- Screen Shot 2021-03-11 at 6.23.50 PM.png (8.01 KiB) Viewed 10707 times
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Huge thanks for this! (I haven't tested all of them but a few I tried work just fine.)xxJeevesxx wrote: ↑Thu Feb 04, 2021 11:19 pmIt seems several links are dead. For those of you who are interested I complied a list using the wayback machine (scripting to the rescue). The attached has all the blueprint strings but also the link in case you can't read the full string. Hope it helps!
Re: 4-way intersections: Throughput and deadlocks [image heavy]
I would have made the inside square a bit bigger and put the radar right in the middle.<X> wrote: ↑Sun Nov 08, 2020 5:05 pm pew. 34 pages are a lot. But I haven't found the one I was building on the first page. Ive struggled with building a non-roundabout intersection within 1 city block, where 1-4 trains are able to wait between 2 train signals. And I came up with this beautiful flower:
train-intersection.jpg
It's compact and a lot better than the basic intersection or roundabout. I like it so far
[EDIT] There are chain signals at the entry, of course, but they're behind the path, so that the path stays free, if the train has to wait
-
carlosaurusk
- Manual Inserter
- Posts: 1
- Joined: Mon Oct 11, 2021 9:26 am
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Sorry if this has been answered somewhere in the past 35 pages, but does anyone know if it's possible to use this to test intersections in a one-way system? I have a city block base with a downtown-style one-way system, so would like to test some intersections with traffic flowing southbound and eastbound only, for example.
I had a play around, trying to delete signals and lines, but found that the trains would get stuck and not even approach the intersection. Am I doing something wrong or is this map not set up for this use case?
TIA!
I had a play around, trying to delete signals and lines, but found that the trains would get stuck and not even approach the intersection. Am I doing something wrong or is this map not set up for this use case?
TIA!
-
hansjoachim
- Filter Inserter
- Posts: 252
- Joined: Wed Apr 26, 2017 7:03 pm
- Contact:
Re: 4-way intersections: Throughput and deadlocks [image heavy]
Hey, so you can do that. Are you using the 4.1 version? If so, have it in manual mode use set 3 and let the trains exit to the left. You might have to make some large turns before or after the intersection but it should enable you to test intersections like that.carlosaurusk wrote: ↑Mon Oct 11, 2021 9:31 am Sorry if this has been answered somewhere in the past 35 pages, but does anyone know if it's possible to use this to test intersections in a one-way system? I have a city block base with a downtown-style one-way system, so would like to test some intersections with traffic flowing southbound and eastbound only, for example.
I had a play around, trying to delete signals and lines, but found that the trains would get stuck and not even approach the intersection. Am I doing something wrong or is this map not set up for this use case?
TIA!
- Attachments
-
- Something like this should work
- Skjermbilde 2021-09-25 085314.png (256.35 KiB) Viewed 7926 times