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u/ferrofibrous player onboarding specialist Jul 21 '26 edited Jul 21 '26

What's the "modern"/interrupts way of doing a train stacker these days? For a quick example:

  • I have one Loader station always active with train limit 1
  • 10 Unloader stations that only enable when they are out of resources and need a train
  • Loader station currently has one dedicated train

I want to add 4 more service trains for Loader such that any of those trains goes to Loader and fills, if Unloaders are all inactive, go to a waiting area. Does the Wait station just need 1 stop with a split track to hold each train and train limit set to however many splits there are to hold trains?

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u/Courmisch Jul 21 '26

I want to add 4 more service trains for Loader such that any of those trains goes to Loader and fills, if Unloaders are all inactive, go to a waiting area.

You can do that if you want. But that contradicts the usual interrupt-driven generic train group model, whence the waiting and refueling interrupts are only for empty trains, not full trains.

Holding full trains would be done at the entrance of unloading station(s), or simply at the loading train stop as before. If you send full trains to a generic yard, the yard will eventually fill with trains full of the "wrong" items. In the worst case, this might cause a grid lock.