Possibly an application for end_date ?
https://wiki.openstreetmap.org/wiki/Key:end_date
On 13-Oct-17 07:45 AM, Andrew Davidson wrote:
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
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