I got "Steam all the way" by launching a rocket with no solar panels. But I also had built no trains yet! Thought that was worthy of achievement note as well.

Ah! Yes, of course. The final example in FFF-374. That's indeed my complaint, and fixed in 2.0. Much appreciated for taking the time to explain it to me.

[Running a long game with Space Exploration & Krastorio 2 mods ... but I don't think either of those change robot pathfinding]

I happen to build large bases with a single huge robotport network, following all train lines and to all remote mines. (I realize this may not be "best practice", but it ...

Yes, agreed. I actually put chain signals pretty much everywhere. It works as suggested.

IMG_8432.jpg

If I were starting over from scratch, I might leave much more space between the waiting area and the drop off area, and build a more symmetric "christmas tree" MUX junction, like sparr suggested ...

Thanks, guys. I think I get it now. I should have a LOT more space in between my wait area and my drop off area, and then build something like sparr's 4-to-6 mux junction (but perhaps scale it up to 20-to-10 or something). I can see now how that would work. Much appreciated!

Huh. I did not make that connection, since I really have all the trains coming from one side, and all exiting on the other side. But the more I think about it ... the more I think you're probably right.

Here (attached) was my own guess. It "kind of" works ... in the sense that, once in awhile, when ...

You have a junction with two independent train lines coming in, and two possible destination lines out. (Or, in general, NxM MUX.) It's easy enough to allow any input train to choose to go to any output track. It's easy to avoid collisions, by having chain signals prior to the junction, and rail ...

One thing I'd love to see tackled is the classic problem of logistic robots delivering to player, but player leaves logistic area and all robots go back. Would it be possible that if the player goes back to the area, the robots turn around again with the item in them and deliver it to the player ...