Tallinu wrote: Fri Dec 07, 2018 11:03 am If a forced signal causes any trains to crash, that probably constitutes a bug.

Yeah, It probably is. I put in a mechanism to prevent it in my merger.

There are some scenarios where you can get trains to crash, I'm unsure how to replicate it, but I have seen it happen when I force a light to be red.

immortal_sniper1 wrote: Thu Dec 06, 2018 8:58 pm https://pastebin.com/2A7Whfxf

rotarionary symetrical 4 lane x jounction RHD inspired by some designs from here that were LHD that i converted to [rhd and 1-3-1 spacing]
and did some adjusting

could you please test this one??

Nice, I'll can look at it tomorrow

NeuralParity wrote: Thu Dec 06, 2018 4:18 pm
Is there any way to override train signals to force a (potentially dangerous) green signal?

https://factorioprints.com/view/-LT3GJXx3RK2L5RuR_ok

No, you can only force a red signal.

A more powerful method of controlling train start signal timing would be to somehow measure the speed and position of the trains in each lane and perform calculations to determine which would arrive first and predict when it will clear the merge point so that the next closest (or another stopped ...

The OP post have not been updated since January.
Many of them are in the savefile. The unoffical updated version of the testbench have also the intersections I made

Nice to see you active on the forum Tallinu!
I found your merge-o-matic in a blueprint book in the savefile. It is really nice!
I thought you would need a much longer buffer area to get it to work. I didn't realize that the acceleration isn't the bottleneck. It is also more compact then the merger ...

If you want a more compact rail system just make a 2 lane system instead of a 4 lane systen. If you go to a 2 lane system you don't need to worry about lane switching.
The modification you did just made that intersection worse and barely more compact. You should do U turns outside of 4 or 3 way ...

I'm not on my computer do you have a screenshot?

NeoVortex wrote: The incoming trains must have all their wagons equally loaded and with items multiples of 10.

Why not make a balancer where that isn't a requirement?


Its hard not to mention throughput as you only get 8 belts out of 8 wagons, which makes it unpractical and just a proof of concept.

That looks better. There are some signals missing still.
Normal signals at the start of the buffer, chain at the end.
If you want to test your intersections throughput you can use this testbench:
viewtopic.php?f=194&t=46855&p=383830#p383830

I prefer making intersections on the testbench rather ...

With all those chain signals, and not really any buffers, it is basically the same intersection as before just larger. It should have about the same throughput as the other intersection you had.

What if you use 4 segments for the intersections? You could have a way higher throughput then.

I have a megabase with a little over 400 trains running smoothly in a 2 lane system.
And I wanted to give some comments on your blueprints especially regarding throughput.

The unloading station
If multiple trains with the same ore are coming in, they will block other trains coming in with other ...

Not in my experience. I had a circuit controlled safe crossing that raises a gate and changes approaching signals to red if a player approaches the gate in front of the crossing. Trains tend to blow right through the gates (destroying them in the process without slowing at all) and completely ...

I have 1-2 trains. I do not understand how to make compact sorter for 2-4. Make more trains is easier way


If you want to test the throughput with 1-2 trains you would have to either use a profile that isn't used yet, or change the trains with profile 1.

To do that, for RHD, find the station ...

About roundabout.
I gamed a lot with celled railroad system. I looked for a simlpe intersection with no crossing, only junctions.
I find no other intersection allows me to make to make turning back.
Roundabout with additional turning rigth will be not so compact.
Firstly I placed safe ...

LuziferSenpai wrote: Mon Jan 08, 2018 6:09 am

Elok wrote:All link and image are dead.

May I suggest to either remove this pinned post or update the links?

I'm working on a new Design so ^^

Still working on them?

lululu wrote: Fri Nov 02, 2018 3:40 pm I wonder why nobody submitted sth like this already

Its throughput would be lower than a normal one block intersection because north-south and south-north intersect, and also because right turns are too close to the intersection.

set 1 33 trains per min

Use a circuit condition to close a signal, trains then stop on a dime.

Huh? When a signal is reserved then setting it to red with a circuit is ignored till the train has passed. Anything else would be a bug.


It is intentional! And the trains really do instantly stop if you change a signal ...