[Tagging] Drain vs ditch

[Markus]

On Sat, 2 Feb 2019 at 14:23, Hufkratzer <hufkratzer at gmail.com> wrote:
>
> If we were discussing a proposal I would agree, but replacing
> waterway=drain by waterway=ditch + usage=drainage or sth. like that is
> not such an easy task.  We already have 800k drains. I assume it
> requires a proposal with volting to deprecate drain, adaption of the
> presets, perhaps a mass edit. Who will do all this? Is the advantage of
> using waterway=ditch + usage=drainage instead of waterway=drain so
> immense that it is worth the effort?

It were more logical and would likely lead to less confusion and less
discussions. While i'm unsure that a mass edit is worth it, i see no
problem in introducing waterway=ditch + usage=drainage as an
alternative way to tag drainage ditches. (If it is successful,
waterway=drain would disappear gradually.) Note that
usage=irrigation;drainage seems to be required anyway for ditches that
are used for both irrigation and drainage.

Regards

Markus