I have used mods to make this happen before, as well as other peoples train control systems that required mods. I dont mind mods.
But I want the things I build to be accessible in the vanilla game so that I can share them.
There is one single issue preventing full combinator control of trains.
We need to be able to send a train to a station using station ID number.
- Station ID must be readable via combinator
- Signal with destination ID to be sent to train via combinator signal (integer, just like train ID)
- Destination to temporarily override train schedule (this is important to reduce setup time and complexity)
- Default wait condition options or set wait conditions using combinator signal
There are advanced workarounds to automate sending a train to a specific station when needed.
However, these are all empty shells compared to the glory that could be combinator controlled trains in vanilla!
Please support more automation! This is the one part of factorio that cannot be properly automated today.