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Simutrans Extended => Simutrans Extended Discussion => Topic started by: Carl on February 20, 2017, 05:51:33 PM

Title: Signalling question
Post by: Carl on February 20, 2017, 05:51:33 PM
Following Ves's post here (http://forum.simutrans.com/index.php?topic=7367.msg159621#msg159621), I had a question about the new signalling system. I understand that upon leaving a station, trains will drive-by-sight (at a low speed? how low?) until reaching a signal. So platform ends will need signals.


How does this interact with stations where convoys of different lengths use the same platforms? For example, I might have a terminus with platform lengths of 7 tiles, but where convoys of length 2, 4, 6 and 7 all use the station. If the 2-tile train leaves from the far end of the platform, will it have to drive-by-sight for five tiles until it reaches the platform end signal? If so, this seems like a problem for simulations. One solution would be to have a signal on each tile of the station, but this would look silly and be unrealistic.


Grateful for any clarification and/or thoughts.
Title: Re: Signalling question
Post by: Vladki on February 20, 2017, 05:58:00 PM
Drive by sight speed can be set in simuconf.tab, it is 35 km/h for pak128.britain. If the signal is at the last tile of platform, it's aspect applies equally to short and long trains.



Title: Re: Signalling question
Post by: Carl on February 20, 2017, 06:04:43 PM
Thanks Vladki. So if I'm understanding right, the unwanted scenario of driving by sight to the end of the platform wouldn't occur - great.

Is drive-by-sight speed fixed at map creation or is it the kind of setting that changes in-game when you change the simuconf.tab? If the former, can it be changed in the in-game settings menu?

(This is relevant for porting old savegames from Experimental.)
Title: Re: Signalling question
Post by: Rollmaterial on February 20, 2017, 06:09:12 PM
It can be changed in the in-game settings.
Title: Re: Signalling question
Post by: Vladki on February 20, 2017, 07:20:55 PM
Thanks Vladki. So if I'm understanding right, the unwanted scenario of driving by sight to the end of the platform wouldn't occur - great.
I think so. Moreover, the train should wait in its place (be it in the middle or end of platform) until it gets clearance, and it should also continue loading cargo/pax while waiting for clearance.