Factorio Forums

I don't understand why the train won't run.
It's a simple setup: one track with station at each end. One train with a loco at each end.
Works perfectly when I drive it manually. In Auto it just gets stuck at each station saying "no path"

I added a couple of signals on opposite sides of the track just outside one station and the train started running. So I guess you still need signals for this simple configuration.

You don't need signals as long as there's only one train. Once you add signals, track that is supposed to be used in both directions always needs them in pairs; having an unpaired signal makes that section of track one way, and if you happen to have unpaired signals on both sides of the track no automatic train can use that section.

If you have only one train at the Tracksystem - you dont need a signal.

I you use one signal at the track - you must follow the signal rules.

It is not for everything right but for beginners easy to follow.
You have a "Y" before tracks goes diferent ways use a "chain signal" (dont know the english word) after the "Y" right and left way each a "traffic light".

(befor tracks split "one dot" signal and after the split a 3 dot signal)

If you train goes in both ways this rule must be for both ways!

And ther are very good tutorials at YouTube