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Train help!

Posted: Sun Oct 29, 2017 10:57 am
by RedYeti
I cant figure out how to get the other trains to use the second platform. I have shown where the rail and chain signals are in the screenshot. Please help! (:

Re: Train help!

Posted: Sun Oct 29, 2017 2:02 pm
by The Eriksonn
the stations must be named the same name, other than that i dont know much...

Re: Train help!

Posted: Mon Oct 30, 2017 12:20 am
by FactorioParadox
First of all, it's bad practice to build your stations over what you're mining; you'll have to rebuild them later in order to get the rest of the patch.

Second of all, trains will, from my understanding, path-find to the closest station, so they go past the switch before they see that the signal is red. If you put a chain signal before the switch, then it will know that one of the signals is red and should then re-path to the next available station. Again, this is from my understanding and may not be entirely correct, but I don't see the harm in trying.

Re: Train help!

Posted: Mon Oct 30, 2017 12:47 am
by DaveMcW
The station is picked when a train leaves the previous station, all signals after that don't matter.

You need to put an in-between station just before the branch, to force trains to recalculate their destination.

Re: Train help!

Posted: Mon Oct 30, 2017 12:53 am
by Zavian
they will recalculate if they are sitting still too long.

Re: Train help!

Posted: Mon Oct 30, 2017 3:15 am
by FactorioParadox
Zavian wrote:they will recalculate if they are sitting still too long.

An in-between station would be faster. And once again I am wrong.

Re: Train help!

Posted: Mon Oct 30, 2017 8:15 am
by Lav
RedYeti wrote:I cant figure out how to get the other trains to use the second platform. I have shown where the rail and chain signals are in the screenshot. Please help! (:
Are you sure there's a chain signal at the entrance? Not regular signal and not a ghost? Cause I'm pretty sure a chain signal in that location should prevent the train from getting into position that it has on the screenshot.

Re: Train help!

Posted: Mon Oct 30, 2017 9:03 am
by vortex1967
Hi RedYeti,

As Lav has pointed out the train should not have entered it's current position with a chain signal at the entrance.

In the following image:
Green circle - appears to be the chain signal.
Blue circle - appears to be a rail signal but double check that it isn't a chain signal. If it is, replace it with a rail signal.
Red circle - hidden behind a tree appears to be an extra rail signal that is allowing the train to enter into it's current position preventing it from pathing to the other station if this station is occupied.

If it is a rail signal remove it and the train should start to path into the unoccupied station.
Extra signal.jpg
Extra signal.jpg (204.14 KiB) Viewed 4240 times

Re: Train help!

Posted: Mon Oct 30, 2017 8:17 pm
by Jap2.0
vortex1967 wrote:Hi RedYeti,

As Lav has pointed out the train should not have entered it's current position with a chain signal at the entrance.

In the following image:
Green circle - appears to be the chain signal.
Blue circle - appears to be a rail signal but double check that it isn't a chain signal. If it is, replace it with a rail signal.
Red circle - hidden behind a tree appears to be an extra rail signal that is allowing the train to enter into it's current position preventing it from pathing to the other station if this station is occupied.

If it is a rail signal remove it and the train should start to path into the unoccupied station.
Extra signal.jpg
I can't get very clear view of the signaling, there should be a chain signal, the rails split, a regular signal, and then the station. If it is not exactly like the (with some minor exceptions that probably aren't relavent) then it will get mixed up. Also, the chain signal would be red if there were two normal signals following the chain signal, as the train would stop at the second signal and since the train would be in the block past the signal, the signal would be red. So the evidence points almost entirely towards there being two signals past the chain signal, which would mean the train does not stop or repath at the chain signal.

Re: Train help!

Posted: Tue Oct 31, 2017 8:44 am
by Engimage
vortex1967 wrote:Hi RedYeti,

As Lav has pointed out the train should not have entered it's current position with a chain signal at the entrance.

In the following image:
Green circle - appears to be the chain signal.
Blue circle - appears to be a rail signal but double check that it isn't a chain signal. If it is, replace it with a rail signal.
Red circle - hidden behind a tree appears to be an extra rail signal that is allowing the train to enter into it's current position preventing it from pathing to the other station if this station is occupied.

If it is a rail signal remove it and the train should start to path into the unoccupied station.
Extra signal.jpg
Exactly this.

Make sure that:
  • Both stations have the same name
  • You have a chain signal before split
  • You have ONE normal signal right after split and no other signals up until the stop
In your case second train in in impossible position - it could not get into that position if the signaling was right. It seams that you have several normal signals in a row on that line effectively preventing the chain signal before split from working as intended.

As a sidenote you do not need chain signal before the merge, just use normal ones. Chain signals are only used if you do not want a train to pass it if the next block is busy - mostly to prevent deadlocks on intersections and also before SPLIT where a train might have multiple paths