... LuaHelpers::is_valid_ambient_sound(), LuaHelpers::is_valid_animation_path().
Added LuaHelpers::stage read.
Added LuaInventory::transfer_from ... com/117215)
Fixed decider would not reject some of the special signals on the right side of conditions. (https://forums.factorio.com/132894 ...

... of operation to radar circuit connections for transfer of cross-surface signals.
[space-age] Space platform hub can set requests from circuit network ... missing them.
New distinct water and out of map transitions for stone path, concrete, refined concrete.
New icons for rail items.
Improved water ...

"Station or path unavailable while en route": all no-path events and any destination-full events that occur while underway.

"Scheduled destination ... a special case, because interrupts can be triggered by circuit network signals to the station.


I do like the idea of splitting out on-route errors ...

"Station or path unavailable while en route": all no-path events and any destination-full events that occur while underway.

"Scheduled destination ... a special case, because interrupts can be triggered by circuit network signals to the station.


I do like the idea of splitting out on-route errors ...

... for creating this suggestion thread. The reason "Destination full or no path" are combined is because they are the only conditions that can trigger an ... a train sleeping at a station. Sleeping at a station is a special case, because interrupts can be triggered by circuit network signals to the station.

... so trains can only travel out, never in.

Going to the right? Are those signals aligned to make it 2-way? I can't tell for sure. And your picture doesn ... to make a temporary stop? When you are doing that, it shows you the path the train would take to travel to the stop before you place it.

So what ...

... one or both of the following:

a modest penalty for segments forcing repath by being unreservable
a small constant penalty for each train / reserved ... scale networks
eliminating repath loops when trains get stuck at blue signals


The pathfinding algorithm would remain unchanged; only the path cost ...

... Details for those curious.

It turns out that, as you said, the signals are still sent to the train while it's waiting for space. So my setup would have worked fine— except that, if the train is waiting not because of "Destination full", but because of "No path", it loses the signals. So ...

... is triggered the train has left the station and thus does not receive signals. I'm trying to figure out if there's a way to make this work without ... As I mentioned above, the plan was to use the "Destination full or no path" interrupt condition in combination with the "Circuit condition ...

... old name don't update. Trains keep running, hit the interrupt, fail to path, and either deadlock or fall through to parking interrupts. The failure ... holmium plate @ Epic] and [holmium plate @ Legendary] as separate signals. With multiple items across five quality tiers, the constant combinator ...

... a few hours now and I am almost ready to give up.

Notes:

There are no signals on this map that I know of. These are straight shot rails with a couple of passing lanes for future expansion.

I can drive the train manually but once I change it to automatic it says "No Path"

I have tried the Ctrl+left ...

TL;DR
Train signals that increase train pathing costs, so that could build main train highways and have trains use them instead of cutting through blocks for a shorter path.


What?
A new type of train signal that increases the pathing cost of a train route that crosses it. Could be configured to ...

... does not eliminate all possibilities for collisions in self-intersecting paths, especially when a train path crosses itself at (e.g.) a right angle, since in that case there are no segments (which are delimited by intersections, signals, and stops) in common between the paths. However, I am not trying ...

... intersection


The suggested penalty eliminates the problem of a train pathing into itself while in a roundabout, as shown in the first screenshot ... that case there are no segments (which are delimited by intersections, signals, and stops) in common between the paths. However, I am not trying to ...

I think the train path finder code is public : https://gist.github.com/Rseding91/c0d4d08d6feaed618ed4a03f6c6a8fe6

the "segments" are the "blocks ... colors are adjacent or separate, those are created by the presence of signals.

I may be wrong but i would say given where you placed the loco if it ...

There are no easy solutions to make trains pathfinder not find paths that would cross themselves given certain train length (this would cause massive ... train currently is when pathfinding happens).

Trains passing red signals is not considered a bug: signal colors are mostly meaningless for ...

... that report, boskid says "Not a bug", but goes on to discuss primarily path cost issues, which I think is secondary to safety.

They also say ... twice", IMO that simply should not be allowed. Again: do not cross red signals . A rail network design that requires one train to enter an already ...

... Because of this bug, in a large base with long trains, they occasionally path into and then crash into themselves, despite accurate signaling, making ... behavior is intentional because "If a train was blocked by its own red signals, it would not be able to move at all." But that is not true; when a ...

... solution I found, so far, is to create a station for every possible item (including every quality variant) so that that I can use them to send signals to the trains, and do interrupt logic with circuit conditions.... but that would be a lot of stations.


I think the underlined part is a problem ...

... The first problem arise when there are no destination for the cargo (No Path). So I made a "recycle" station that removes 1 item:
03-10-2026, 08-31 ... including every quality variant) so that that I can use them to send signals to the trains, and do interrupt logic with circuit conditions.... but ...