Another Signalling Problem with Empty Station

[Cheshire Cat ^..^]

I tried to find the answer everywhere possible and after an hour I'm giving up...

From what I understand and everything I read about path signals this should work: just one station shared between two separate two-way tracks with PBS at each entry.

(Trains coming from the right will never go left and vice versa, so don't worry about it)

But this train is just standing there... I don't understand. The path looks available!

If I add a block a signal at the opposite end of the station, it works. But why do I need to do that? Doesn't make any sense to me.............

[Eddi]

even though the train never goes beyond the station, it must still reserve a path to a safe waiting point. the platform is no such safe waiting point, only a signal or the end of the track is.

[Cheshire Cat ^..^]

EDIT: Ahhh, I get it. I need to switch the placing of the two directional PBSs in the below picture.

How come there are no proper two-way PBSs? I'm wasting one square the way I have to do it now...

Also, a shame stations don't divide blocks that way too

Now I know that no matter what I do the left train won't go into station to load while another train is leaving the depot on the right. *sob*

Anyway, thanks for the help!!

Can't wait for the day when passengers finally have destinations!

[Alberth]

station_depot.png (24.92 KiB) Viewed 2203 times

This should work.

(I never quite got the meaning of the non-electric signals, not sure what your setup is exactly.)



There is no "proper" PBS two-way signal, because PBS avoids the quite useless idea that a signal is "safe to stop in front from both sides".

[Cheshire Cat ^..^]

Well, I think I figured everything out by now so now I'm just going to whinge for a bit, if I may <3

There is no "proper" PBS two-way signal, because PBS avoids the quite useless idea that a signal is "safe to stop in front from both sides".

Thank you for the reply. That's a good point. But train stations ARE a safe stopping point, shouldn't they be? Depots have inbuilt signals so stations can too.

Also, I have no good space to move the depot back too. Ahhh, if only signals could be built BETWEEN squares, then there'd be even no need for built-in station signals even!

Grrr, makes me want to study the code now (I know C++) but something like this would probably require a very thorough overhaul of a bi-i-ig chunk of code, wouldn't it?

[PikkaBird]

Depots have inbuilt signals so stations can too.

Trains waiting to leave depots don't block other trains trying to enter. That's not the case with stations, so a "two way PBS" signal would result in deadlock.

[Cheshire Cat ^..^]

Good point!

Still, in Alberth's solution there's a two way PBS signal right there. And I don't think there's a better solution to this than that.

Any programmers here who can give me an estimate on how many hours it would take me to implement signals between squares? Even if it's realistic at all by one man.

In terms of UI I'm thinking the simplest solution is to have a rotating setup like with block signals where each click puts the lights in different position.

[Eddi]

Still, in Alberth's solution there's a two way PBS signal right there.

while that is true, the kind of situation where you actually want that are really really rare.

stations with builtin signals were decided against, because you can add signals if you want one, but you can't remove them if they are builtin, and you really don't want one to be there.

Any programmers here who can give me an estimate on how many hours it would take me to implement signals between squares? Even if it's realistic at all by one man.

6 month to a year of dedicated work, if you're experienced. and then 3 more years of convincing the devs that your solution is good, bug-free and maintainable. as far as projects go, it's probably one of the hardest you could go without it being impossible.