Thanks everyone for the awareness and the discussion.
After reading through the discussion I totally understand the difficulties it may raise, and would like to elaborate.
The curve geometry tag was introduced a few years ago in order to solve a problem we had with curved roads, of course with hope it will also contribute to the OSM community.
This tag serves as a marker for where to break curved ways into edges when building a graph (in addition to intersections, which are straightforward breaking locations).
In the vast majority of cases we actually don’t need it anymore, but we do have some legacy parts in our system that still use it. We’re on the track of replacing those parts, so in the relatively near future (~1.5 years) we will not need it anymore.
If possible, we’ll be happy to keep it for this remaining period. As commented above, eventually it’s not a very common tag, so I guess it doesn’t affect that many places globally.
Of course, we’ll understand and respect any decision taken by the community.
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