... displays and gives out the global (universal?) symbol signifying the "No Path" error. As soon as the destination station opens up, the train loses the ... shows closest station only, but there are other stations in the network that give the same problem, as indicated by the multiple No Path signals)

I don't think trains need to find the optimal path every frame.
At the very least I've seen trains take some questionable routes in a large train ... they will have to "share" and will eventually spread out evenly if the signals are also somewhat spread out evenly. You can even calculate which is ...

... main line, if ANY train leaves the stacker, the train waiting will re-path and pick one of the open spots. I'm not sure what is causing this. I'll ... be really lucky and haven't had it happen yet.

You are right about the signals, I will definitely optimize that area...

Thanks for the response, I ...

... material. I also investigated how to micro manage (circuit-control) signals for traffic control at input and output to maximize input and output.

My observations (or better: "don't do's") were:

Your problem can only be solved if the train is able to fully proceed to the lane it is pathing to ...

... and when a train is in the block that reads the chain signal, the repath happens.
I was reading the wiki that they recently changed some things ... each with 4 slots(0-3).
if the first slot(0) is NOT full
send the signals of each line(0.A-L) to the entrance signal
if it is full, don't pass ...

1)One of the "problem" with trains is that they require "pathfinding" which from what i understand is a "costly-one-time-request-that-need-to-finish ... a route technically the only thing it needs to be doing is looking for signals.

The issue is well known, getting it to run as well as it does in this ...

... Steam\steamapps\common\Factorio\bin\x64\Factorio.exe"
0.002 Config path: C:/Users/User/AppData/Roaming/Factorio/config/config.ini
0.002 Read ... processes available raw materials.
Chain the red and green signals between each Crusher, and add a green wire from each input inserter to ...

... of a hack , but it's a hack worth making in my opinion. When the sprite path begins with "item/", or "fluid/", etc. then you DO know which the ... utility mods are using sprite-buttons with items, fluids and/or virtual signals.

It's really easy to figure out based on the sprite path if it is ...

... visibility and looks of Fulgora cliffs.
Added graphics for frozen stone path.
Changed the north edge of all pipe graphics to include an arch to ... 127058)
Fixed that reading orbital requests would generate negative signals in some cases. (https://forums.factorio.com/121003)
Fixed that ...

... IIRC). Trains do not change which stop they are bound for when they repath along the way, and they do not take into account path penalties like stopped trains or red signals.

An easy way to create the behavior you want is to use a simple combinator to set the stop priority to 50 - number of trains ...

... IIRC). Trains do not change which stop they are bound for when they repath along the way, and they do not take into account path penalties like stopped trains or red signals.

An easy way to create the behavior you want is to use a simple combinator to set the stop priority to 50 - number of trains ...

... and gets passed the random signal, it very frequently will generate "No path" notifications. If it gets assigned a random item that has no open ... requests (radar in my case), then the selector is either not sending signals, or only ever sending signals that do have an outstanding request ...

TL;DR
All in-game alerts should be exposed as virtual signals.

What?

Minimalistic approach: Export only signals currenrtly-existing as alerts ... storage (yellow chest)
Train out of fuel (red canister)
Train no path (orange question mark with arrows)
Collector path blocked (red claw ...

City blocks are ""best avoided"" because they complicate a lot the pathfinding for trains, which very often end up the limiting factor on (mega) base ... can deadlock and just from the picture it's difficult to be 100% sure with bridges that all chain signals are properly placed, but it seem like it ^^

... If you prefer to continue with the challenge...

Trains can only pass signals on the right side of the track, so for a bi-directional track EVERY ... one way track which will cause trains going the opposite way to show No Path.

Without recreating your tracks, I think putting pairs of signals at the ...

... png solves! The inner track (which acts as the siding) has regular signals, while the outer track (the bypass) has only chain signals. This means ... Now it's an ugly workaround, but if you say :

True, but repaths already happen when the destination station becomes not-full, and this ...

My understanding is that this is a quirk of the pathfinding algorithm: the main line is shorter (since it doesn't have the curves), so trains prefer ... use of long mainline sections without using periodic non-chain signals, and non-chain signals mean you risk having trains park on your main ...

The train pathfinding system in Factorio has confused me for quite some time, and I think I've figured out why: sidings don't work the way I'd expect ... pair of sidings off of a long main line. The sidings have regular rail signals at their entry points, while the main line has only chain signals. What ...

... Steam\steamapps\common\Factorio\bin\x64\Factorio.exe"
0.000 Config path: C:/Users/Chris/AppData/Roaming/Factorio/config/config.ini
0.000 Read ... 15: WARNING: pypostprocessing could not find technology with name "rail-signals"
3.739 Script @__pypostprocessing__/cached-configs/run.lua:15: WARNING ...

... is that “mods.factorio.com” utilizes CloudFlare for its public access path. It is not clear which product is in-use or how it is configured, but generally speaking, they use multiple “signals” to determine if you are a Human or Bot.

My personal advice? Don’t submit more than 1 HTTP request per ...