Property talk:P81

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Documentation

connecting line
railway or public transport line(s) subject is directly connected to. Use as a qualifier
Description The line (Q1067164) that the station (Q719456) connects to. Can be used as qualifier on adjacent station (P197). See also connecting service (P1192).
Represents line (Q1067164)
Data type Item
Domain
According to this template: station (Q719456) (not only railways)
According to statements in the property:
station (Q719456)
When possible, data should only be stored as statements
Allowed values line (Q1067164) (not only railroad line (Q728937)) (note: this should be moved to the property statements)
Usage notes Note that this is used for the physical line/track running through the station/stop. Use P1192 for a railway service.
Example
According to statements in the property:
Watford Junction railway station (Q10698)West Coast Main Line (Q19889)
When possible, data should only be stored as statements
Tracking: same no label (Q42533372)
Tracking: usage no label (Q38538177)
See also connecting service (P1192)
Lists
Proposal discussion Property proposal/Archive/1#P81
Current uses 40,083
[create] Create a translatable help page (preferably in English) for this property to be included here
Type “station (Q719456): element must contain property “instance of (P31)” with classes “station (Q719456)” or their subclasses (defined using subclass of (P279)).
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P81#Type Q719456, SPARQL
Value type “line (Q1067164), railroad line (Q728937): This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value line (Q1067164), railroad line (Q728937) (or a subclass thereof).
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P81#Value type Q1067164, Q728937, SPARQL

Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)


Purpose ?[edit]

What property is this supposed to show, and of what subjects? Janjko (talk) 21:40, 5 February 2013 (UTC)

Good question ;) See: Wikidata:List of properties#Added without discussion. --ThorstenX1 (talk) 11:55, 13 February 2013 (UTC)

Name[edit]

connected line, rather than connecting line, would be clearer to me. Danrok (talk) 01:58, 26 February 2013 (UTC)

I'd rather use it as qualifier of adjacent station (P197), so connecting line makes sense and the qualifier is important information. However, stating the line as a property of the station seems redundant to me. --JonnyJD (talk) 15:09, 31 October 2013 (UTC)

Use adjacent station as a qualifier?[edit]

Should we use adjacent station (P197) as a qualifier with this property?

I have entered a simple example here: New Brighton railway station (Q2194863). Some stations have many lines and many adjacent stations, so I think we must do it this way.

That seems reasonable. However, if it's not a terminus, there should be two adjacent stations for each line. Superm401 - Talk 04:51, 25 May 2013 (UTC)
Yes, or more. I've tried to solve Watford Junction railway station (Q10698). Danrok (talk) 11:03, 25 May 2013 (UTC)
I would prefer the opposite; connecting line (P81) should be used as a qualifier for adjacent station (P197). /Esquilo (talk) 13:48, 22 October 2013 (UTC)
Agreed. I am doing it like that. --JonnyJD (talk) 14:40, 29 October 2013 (UTC)
Agreed, property should be used as qualifier (for e.g adjacent station (P197)). Michiel1972 (talk) 08:59, 11 November 2013 (UTC)

Specify railway line using "part of"[edit]

For railway stations I use "part of" <railway line item> as claim, see e.g. Schiedam Centrum railway station (Q801405). 139.63.60.122 13:49, 8 November 2013 (UTC)

Infrastructure[edit]

I changed the dutch description to clarify not only stations part of a railway line could have this property, but also other infrastructure such as bridges or tunnels. Bennie91 (talk) 14:18, 29 November 2015 (UTC)

Mandatory as qualifier?[edit]

I find it a bit superfluous to have this property and connecting service (P1192) used on its own as a property and as a qualifier to adjacent station (P197), especially when using it in the latter manner tells us much more about a station's relationship with other stations. Is it about time that the two 'connecting' properties be required to be used as qualifiers? Mahir256 (talk) 18:15, 13 August 2016 (UTC)