Ah! I had not noticed that very salient pointDeadly-Bagel wrote:This is why it's working for you, the OP has more trains than waiting bays (in this case loading stations as there are no waiting bays).ChurchOrganist wrote:you have to make sure there is enough space in your waiting area to accomodate all your trains, but in my experience it does work.

Of course in OpenTTD there is no ability to control signals with circuit logic - well atm anyway.
I'm just starting to understand how to use circuit logic - I am now using that to stop trains from leaving outpost stations until the storage buffer for that resource drops to a certain level.
I inadvertently broke the circuit to an iron ore outpost yesterday, and was wondering why there was 156k iron ore clogging up main storage for a good 5 minutes before I realised!