I think Factorio-SAT can be used (if it can handle priority splitters; I forgot whether this is the case). It takes networks and tries to fit them in a certain footprint. Doing this iteratively will let you find the smallest footprint that fits the network. But finding the network that will give the...

Kind of a necro, but since this is still linked on the wiki, I would like to point out that the document uses some nonstandard terminology (mainly that TU is called UTU), and has some incorrect claims, at least this one: One more point: there exists no balancer that is FO, FI and non-UTL simultaneou...

Apparently flow routers have also been discussed earlier as "compressors" (in 2018). See Finding balance: a guide to Factorio belt balancers the document is not up to date however, has some nonstandard terminology, and some incorrect claims ('UTU balancers don't exist', to put it in more s...

I think it was actually Jackiethegreen on Reddit who first made an posted it; see this Reddit comment , in which he claims to have made it, with exactly the same blueprint, and the other comments which have many similar blueprints. That post is probably from when all of them were created. Of course ...

Your 8-8 design is a lot smaller than the one in the blueprint book posted above, but uses 8 more splitters. Too many splitters is bad for ups, as they disrupt the transport line optimization that Factorio does, but I don't think this will be a problem unless you kilobasing or megabasing. Your desig...

The difference from delta is that delta won't deadlock. The safe outputs needs to be after crossings, not mergers. The extended Symmetrical Cross will only deadlock if one of the outputs becomes blocked while a train is on the junction, pathing there, and unable to repath. This can happen with basi...

Yeah ramps will make other intersections basically obsolete. (Maybe in very high throughput areas where the upper level also has a full intersection they won't be used. (And with buildings all around, so the intersections can't be expanded.)) But only if you buy the Space Age expansion, which I don'...

They should be placed as close as possible. So the safe exit block length is measured from the first rail signal that the train passes after the last chain signal it passes when going through the junction (Edit: except when the train would not pass any chain signals, in which case it would be measu...

I tested the Delta intersection by Hans Joachim, my setup can be seen in the attached image, and got the following results: Set 1: 46.98 Set 2: 38.11 Set 3: 43.34 Score: 42.81 (42.8 ± 0.5 with uncertainty from https://mods.factorio.com/mod/Testbenchcontrols/faq) I set the TPM goal to 29, and the tes...

How do you deal with intersections that have different spacings between the rails? When I use the Testbench I add curved sections of rails as necessary, with signals placed so that each colored block can fit two full wagon lengths, but think this might influence the measurements.