What happened to EuroVelo10?

mateuszzz88 · 2011-08-20T13:25:02.000Z

Hello,
I noticed today that EV10 (see http://wiki.openstreetmap.org/wiki/WikiProject_Europe/EuroVelo , relation http://www.openstreetmap.org/browse/relation/63584 ) is practicaly wiped out. I remember last year it was much more throughly mapped. I can’t access it’s history due to long retrival time. Can someone check it? if it’s a vandalism, how can it be undone?

mateuszzz88 · 2011-08-20T14:46:04.000Z

Ok, i did some more digging. I could get the history of relation through API (not the browser). It turn’s out, that only latest modification wiped most of the relation - http://www.openstreetmap.org/browse/changeset/8920515 , probably accidentally. Can somebody undo it? I can’t seem to find such option.

Pieren · 2011-08-22T08:20:45.000Z

That’s the problem with such big relations. You want to cover thousands kilometers edited almost every day by dozen different contributors. 419 versions for EV10, 906 versions for EV2 ! Most of the contributors don’t understand what these relations are doing in their local data, especially when they are no evidence on the ground.

mateuszzz88 · 2011-08-28T13:48:17.000Z

Well, can we do something about this? I believe the data necessary to retrive this route still is in the database, just I can’t find out how to do that - that’s what we have changesets, do we not?

MikeN1 · 2011-08-29T12:11:57.000Z

I reverted it - some of the members had already been edited, so the ‘route’ is almost certainly broken by split ways. There are a huge number of members - 33,000+ if I read correctly. Perhaps some tool has a 32,768 member relation limit?

I would strongly agree with Pieren - this should be split into multiple regional relations on logical boundaries, then tied together with a super-relation http://wiki.openstreetmap.org/wiki/Super-Relation . It is very likely to be broken again in the near future.