[Tagging] Feature Proposal - RFC - Validity of Route Relations

[Andrew Davidson]

Do you want data users to consume this tag? Or is intended for other 
mappers to know when something needs to be updated?

There does appear to be a strong push against using tags that indicate 
something has gone from the map:

https://wiki.openstreetmap.org/wiki/Key:end_date

If this is for other mappers then maybe:

1. note:valid_until=*
2. source=* source:date=YYYY-MM (ie: more than 12 months ago needs to be 
updated).

On 13/10/17 06:10, Michael Reichert wrote:
> Hi,
> 
> every year timetables of many public transport services in Europe change
> on the second Saturday in December at 24:00. At this date lots of
> changes are necessary to route relations – operators change, reference
> numbers change or whole networks are restructured.
> 
> I would like to introduce a tag called timetable:valid_until=* which
> indicates until which date a route is valid. If you update a route, you
> usually know until when the corresponding timetable is valid.
> 
> For further information and the reasons why I did not choose a
> corresponding start tag, see
> https://wiki.openstreetmap.org/wiki/Proposed_Features/Validity_of_Route_Relations
> 
> Feedback is welcomed, especially if you have suggestions for the name of
> the key.
> 
> I crosspost to the Talk-transit mailing list, the German mailing list
> "Nahverkehr" and the German OSM forum because the German forum is place
> where people frequently discuss public transport mapping.
> 
> https://lists.openstreetmap.org/pipermail/talk-transit/2017-October/001876.html
> https://lists.openstreetmap.de/pipermail/nahverkehr/2017-October/000046.html
> https://forum.openstreetmap.org/viewtopic.php?pid=667930#p667930
> 
> Best regards
> 
> Michael
> 
> 
> 
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging
>