[openrailwaymap] Tagging triple station track layouts

[Christian Wendel]

Hi Jeroen & contributors

I know some stations in Germany as well that are using Layout 1.

My opinion:
If the middle tracks only serve as a siding - means only few regular 
trains use it, the outer tracks are preferred if available - I would tag 
it as service=siding and usage=/as observed/. And vice versa.

Some Examples might help thinking about:

* Solingen main station:
     - Central track (Nr. 2) is siding, because mainly used for waiting 
freight trains to be overtaken.
     - Same for track Nr. 8, which is a train stop with platform, but is 
only used unregularly, for overtaking, in case of delays etc.
http://www.openrailwaymap.org/?lang=de&lat=51.16042799052598&lon=7.004537880420685&zoom=18&style=standard

* Köln Messe Deutz:
     - Central tracks largely used by long-distance trains not stopping 
in this station, NO freight trains.
     --> I'd prefer usage=main, but have never mapped this.
http://www.openrailwaymap.org/?lang=de&lat=50.9407615337433&lon=6.976785063743591&zoom=17&style=standard

* Siegburg / Bonn:
     - Only High Speed Service
     - 2 Central tracks for passenger trains without stop (at least 200 
km/h)
     - 2 Tracks right & left with platforms, only used for stopping there.
     --> usage=main for central tracks, usage=? for platform tracks
http://www.openrailwaymap.org/?lang=de&lat=50.79384089352182&lon=7.203474640846252&zoom=17&style=standard


Any other opinions are welcome.

regards
Christian


Am 01.05.2015 um 18:50 schrieb JJJ Wegdam:
>
>
>   Dear contributors,
>
>
> between two platforms, there can be two tracks to serve both 
> platforms, but there can also be more tracks. In the Netherlands, 
> these so called triple station track layouts are mostly found at 
> larger stations (4 or more platform tracks).
> These third tracks serve two main uses, as described in the attached 
> image. The tracks can be used for through trains (mostly freight), or 
> can be used to divide platforms, or both. Platform divisions are used 
> on Dutch stations that are reaching their capacity. Adding a crossover 
> in the middle of a platform allows two trains using the same platform 
> simultanuously (which doubles the stations capacity for trains up to a 
> certain length). In the example we see a red and green train route 
> using the same platform and a blue train route using a platform on its 
> own (which could be because of the train length). Such track use can 
> of course also happen at the outer platform tracks.
>
> The question is how to tag such a third track.
> In the situation without middle crossover, usage=industrial could 
> apply. But we should keep in mind that these tracks are also used to 
> shunt empty passenger trains (usage=yard).
> In the situation with middle crossover, usage=main, usage=branch, 
> service=crossover, service=yard and service=siding could be used.
>
> Please share your thoughts. Thank you in advance.
>
> Kind regards,
> Jeroen
>
>
>
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