On my latest big map I built trains - not because they were needed (at first,) but just because I wanted to, and building the loading and unloading has some nice possibilities.
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Iron loading at the iron mines.
Repairpacks are supplied from the front waggon, having filtered cargo slots.
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Iron and copper unloading. Use smart inserters to just take the ores.
Repairpacks sent to mining outpost in front waggon having filtered cargo slots.
I set the images up in an imgur album for easy reference and inspiration for any train lovers that does have time for that. (Pun entirely intentional)
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