Wikidata:Property proposal/Railway station linear reference (line & milestone)
Railway station linear reference
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| Description | Stations are located on one or more railway routes, each at a given milestone. This makes it possible to situate them in the topology of a railway infrastructure. A linear reference system can be used to position any object on this topology. In this case, we would add one or more route (or line) number + milestone data pairs. |
|---|---|
| Represents | railway station (Q55488) |
| Data type | String |
| Allowed values | ^\d+(\.\d+)?:\d+(\.\d+)?$ |
| Example 1 | Strasbourg-Ville station (Q801473) → "142000:0" "70000:502" |
| Example 2 | Marseille-Saint-Charles station (Q371217) → "830000:862.05" |
| Example 3 | Gare d'Arcachon (Q2777199) → "657000:57.972" |
| Source | https://ressources.data.sncf.com/explore/dataset/liste-des-gares/table/ |
| Number of IDs in source | About 1 to 10 occurences by railway station |
| Expected completeness | eventually complete (Q21873974) |
| See also | milestone (Q10145) route number (P1671) |
Motivation
editIt is VERY useful to construct railway topology to make pathfinding along stations. It could be imported to OpenStreetMap (next step!).
I think we could better normalize (and reference) route number / milestone pair, but I don't know how to do that? Nethenic
In addition to the SNCF database, the RINF also contains such data. For example, here is Valenciennes railway station (Q1887294): https://data-interop.era.europa.eu/describe#https%3A%2F%2Fbackend.710302.xyz%3A443%2Fhttp%2Fdata.europa.eu%2F949%2FfunctionalInfrastructure%2FoperationalPoints%2F6cb1ddc5faf758084179dcfab543e777b13f2833
The railway location of an infrastructure object parameter contains the milestone + line number data pairs. – balint36 passenger complaints 22:22, 5 November 2024 (UTC)
Discussion
editDo we need a new property for this? Why not use connecting line (P81) with linear reference (P6710) as a qualifier? --PhiH (talk) 21:15, 12 November 2024 (UTC)