[Tagging] Waterway equivalent of noexit=yes?

Volker Schmidt voschix at gmail.com
Mon Jul 20 22:19:40 UTC 2020


Manhole=drain has more than 2000 uses, most of them seem to be water
drainage grids with no access for humans.
But if you want to retag them with something different you would need to do
this manually.
I would not touch it, even if it is an unfortunate tagging.

On Mon, 20 Jul 2020 at 21:33, Alan Mackie <aamackie at gmail.com> wrote:

>
>
> On Mon, 20 Jul 2020 at 11:28, Paul Allen <pla16021 at gmail.com> wrote:
>
>> On Mon, 20 Jul 2020 at 10:59, Volker Schmidt <voschix at gmail.com> wrote:
>>
>>> manhole=drain is widely used in OSM for water drainage grids, that are
>>> not suitable for people to entr - se the photo on the wikipage
>>> <https://wiki.openstreetmap.org/wiki/Tag:manhole%3Ddrain>
>>>
>>
>> People have used manhole=drain for that purpose and the wikipage
>> for manhole=drain documents that use.  However, that photo appears
>> to be of a UK storm drain which is not a manhole by my definition
>> (too small for entry by a person) or by the wiki's definition for
>> Key:manhole which states "Hole with a cover that allows access to
>> an underground service location, just large enough for a human to climb
>> through."
>>
>> In my opinion we should deprecate manhole=drain except where
>> it really is large enough for access by a person.  We need a
>> better tag.  Well, two tags.  One for storm drains and one
>> for sinks that are too small to merit natural=sinkhole with
>> any of the current sinkhole=* types.  Oh, and a tag for
>> spreads, too.
>>
>> --
>> Paul
>>
>
> I think we also need one for "entrances" to pipes/tunnels of unknown
> extent where the entrance is by horizontal movement of the water rather
> than by falling into a hole. The presence/absence of gratings or mesh may
> be useful for these too.
>
>
>
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