Three state presignals

[Vladki]

Hello all,

according to Wiki http://simutrans-germany.com/wiki/wiki/tiki-index.php?page=en_SignalsDef
presignals can have graphics for three states - red, yellow and green. However according to other tutorials, and my experience it shows just two states: red (or yellow according to pak graphics) and green. And green is shown only when the next signal is also in green state. So, what is the purpose of the third state?

[Ters]

I get the yellow state when the next block is free, but the one after that isn't.

[Lubak91]

And why are not three state signals?

[Ters]

And why are not three state signals?

What do you mean? I count to three: red for next block not free, yellow for next block free but not the one after that, and green for next two blocks free.

[AP]

Is this pak-specific? The pak-gb ones (last I checked) had two visible states only.

[VS]

After talking with Lubak, what he wants is that trains slow down on the yellow state.

Please note that I'm a bit out of loop regarding signals - just translating what has been said to enable actual discussion.

[Ters]

Is this pak-specific? The pak-gb ones (last I checked) had two visible states only.

Nothing is stopping the pak maker from using the same image for more than one state. It's also possible that one of the states didn't work at the time the pak was made, and it has never been updated with a third set of images.

After talking with Lubak, what he wants is that trains slow down on the yellow state.

Don't think of them as presignals. They are meant for something else, namely reserve two blocks as opposed to just one.