Trains sometimes collide leaving the station

So I’ve got a manifold of train stations–one line comes in, branches into like six parallel train stations, and then they rejoin into one line. Each station has a block signal at each end, so the one-into-many section and the many-into-one section are blocks.

Sometimes, when there’s enough traffic that more than train is finished unloading and ready to take off, when the many-to-one block frees up, two trains will enter the block simultaneously and collide.

Anyone know what to do about that?

milkisklim ,

IMHO I find that having a two foundation long block of rail before and after the station helps with trains running smoothly than the trains directly going into a one to many or many to one block. My bet is that it helps gives a train space to stop while the other trains go through the combo blocks.

Rom , (edited )
@Rom@lemmy.world avatar

I’ve had this happen before. When two trains are waiting for the same block to clear, as soon as the train leaving the block exits they both get a green light and enter the block at the same time, resulting in a collision. Sometimes at a low speed so they don’t derail and you don’t get an alert.

Replace the block signals going into the many-to-one block with path signals. This will ensure only one train is allowed to enter the block at a time.

captain_aggravated OP ,
@captain_aggravated@sh.itjust.works avatar

I tried that, got flashing yellows.

Rom ,
@Rom@lemmy.world avatar

Make sure all the entrances to the block are path signals, if you missed any and there’s still a block signal entrance you’ll get an error.

MrMusAddict ,

Are your signals directly before/after the stations? Or, are they closer to the forks?

captain_aggravated OP ,
@captain_aggravated@sh.itjust.works avatar

It goes platform platform platform station (signal) 90° bend straight track.

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