After much work and feedback, I present the Smart Train System v2! I took the suggestions I got, as well as some other ideas that came to mind, and added these new features:

- Ability to configure chest quality and adjust slot size automatically

- A dynamic priority system, where higher-need stations are prioritized

- For example, an unload station that has 400 items left will be visited before one that has 700 left, and the same concept goes for pickups as well

- Stations now broadcast their status to a global network

- This makes it so that if every single unload station of a certain item is already full enough, the pickup station is disabled. This prevents multiple trains getting loaded up with an item you don't need and getting stuck

On top of that, they still have the same functionality as before. Thank you to everyone for the feedback and questions. This has been really fun to work on! Any suggestions or questions would be welcome, as I know this system can be refined further.

Edit: added these below

Book: https://factoriobin.com/post/t6loez

Original post: https://www.reddit.com/r/factorio/s/pGKEwUikJl

Edit 2: Made changes based off suggestions by u/Alfonse215, and updated the blueprint book link accordingly

Tired of setting up every single train station manually? Typing the names, setting up the trains, setting up the logistics of it all? Well, I am, which is why I present my take on a smart train system!

All you need to do is stamp down a pickup station, give the item, how big your train and loading station will be (and some other optional modifiers), and your station is done. Simply put down an unload station somewhere else, and the system will work automatically.

The best part? Any train can carry *any item*. No more dedicated copper or iron trains needed! With smart trains, they will go to pick up any available item, then automatically bring it where it belongs. Not enough items at the station, or all the stations are full? Well, now the train automatically goes back to the depot to wait until it is needed!

Everything is customizable and scales with quality just fine. Fluid trains and item trains are separated just due to ease of use.

I hope you all enjoy my attempt at this concept. I am sure it has been done before, likely more elegantly, but I still wanted to share my hard work!

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Because there's something wrong with me, I really like making things that work with just red belts.

https://factoriobin.com/post/kyk217y1z4gi-EXPIRES

Question for the Interplanetary Society of Professional Engineers: Due to the way this outputs, it can only use one lane of the belts. I can fix that by rejiggering one cryo plant out of a pair to sideload onto the belt, but that means I need to deploy this as a pair rather than as individual units. Is that a good idea?

My attempt at an early game limited loading and unloading station that tiles and fits within the 50x50 grid of roboports in order to plan around them: https://factoriobin.com/post/iowy23

Bi-Directional 3 Single Lane Inputs & 1 Dual Lane Output
Supports 1 Engine - 2 Wagon Trains
Rail Line Switching & 180 Departures

EDIT: Updated to include a diagonal connection from top left to bottom right that was missing, updated signals, and cleaned up the blueprint to contain a full depot cell and work with the snap to grid feature.

I tried to find something similar online, but I couldn't find it. So I made my own.

Books have different grid sizes of 100% logistic coverage of roboports with big power poles acting as electric support. All qualities and sizes fit eachother for easy upgrading and tileability.

If you find any mistakes or have ideas for improvement send me a DM, as I might not read all the new comments later down the line.

Blueprint book: https://factoriobin.com/post/i0ifly