Factorio Forums

So i have 2 Railways that are overlapping both are two-way railways and i want the X juction to be a Block that is blocked if a train is passing through the junction but i can't get it to work at all. the closest one i have got just was able to let the train pass the junction from 1 railway side and if they arrived at the destination they had no path

Chain signal at the entrance. Normal signal at the exit:
https://www.youtube.com/watch?v=ps423d2WisY

The chain signal prevents a train from entering a block if it can't exit it

You need double signals on them. Put another signal on the other side of the track.

Signals on 2way tracks require to placed as indicated.
Chain signals are used before a crossing to prevent a train from blocking the crossing if the exit isn't free. Trains will stop when required.
There are 4 chain signals and 4 normal signals.

Hope this helps.

Thx for the Help!