Adds signals to allow stations to couple/uncouple trains automatically.
Mods introducing new content into the game.
Trains are great, but what if they could do even more?
What the difference is from the mod? https://mods.factorio.com/mod/Automatic_Coupling_System It has even more downloads
It was made because originally that mod was a fork of GotLag's mod that was re-licensed under a proprietary license instead of preserving the open source license. Now that that mod is creative commons why not use it!