Wikidata:Property proposal/Engineer's Line Reference

Description	code for a railway line in Britain owned by Network Rail
Represents	Engineer's Line Reference (Q5377931)
Data type	External identifier
Template parameter	elr in Template:Infobox rail line (en)
Allowed values	[A-Z]{3}[1-9]?
Example 1	Ashford to Ramsgate Line (Q4805019) → ACR
Example 2	Catford Loop Line (Q5051993) → CAT
Example 3	Waterloo–Reading Line (Q6265162) → RDG1 applies to part (P518) Waterloo–Wokingham Jn → RDG2 applies to part (P518) Wokingham Jn–Reading
Source	en:Engineer's Line Reference
Expected completeness	eventually complete (Q21873974)

The ELR is a widely used code to identify railway lines in the UK.--PhiH (talk) 11:34, 18 August 2020 (UTC)[reply]

Comment if it's a unique reference, I think datatype should be external-id, not string. --- Jura 20:04, 20 August 2020 (UTC)[reply]
- @PhiH: Please address Jura's comment (and try and drum up some support). JesseW (talk) 02:17, 12 March 2021 (UTC)[reply]
  - Completely forgot about this. If an external id is correct here, I'm fine with that. --PhiH (talk) 06:27, 13 March 2021 (UTC)[reply]
    - OK, changed that. We still need to find at least one other person who is interested in adding these to comment here, and then (hopefully) a property creator will be willing to make it. JesseW (talk) 21:21, 13 March 2021 (UTC)[reply]
Support, an important property for the UK.--Arbnos (talk) 12:31, 20 December 2021 (UTC)[reply]
@PhiH, Jura1, JesseW, Arbnos: Done as Engineer's Line Reference (P10271). UWashPrincipalCataloger (talk) 00:35, 17 January 2022 (UTC)[reply]

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