[Talk-GB] When is a hedge a wood?

Warin 61sundowner at gmail.com
Tue Aug 28 00:10:53 UTC 2018

On 28/08/18 04:00, Chris Hill wrote:
> On 27/08/2018 18:09, Martin Wynne wrote:
>>> Landuse=highway does have some usage, and certainly the term forbidden
>>> does not exist in OSM.
>>> There is no such thing as available, if you think a new tag is needed
>>> then you can use it.
>>> https://wiki.openstreetmap.org/wiki/Proposed_features/landuse%3Dhighway
>> Hi Phil,
>> I'm confused. If anyone can use anything, what is the meaning of 
>> having a vote about it?
>> That page says voting on landuse=highway was suspended 5 years ago, 
>> and there are more opposed to it than in favour.
>> There must be some distinction between "official" tags and home-made 
>> ones, otherwise how is the renderer to know what to do with them? If 
>> it is not rendered, and no-one knows it exists to be searched for, 
>> what is the point of adding it to the database? If I put 
>> landuse=ufo_landing_pad who would ever know that it is in there?
> There are no official or approved tags. 

There are 'approved' tags. These are ones voted on and reach the 
required number of votes, proportion of yes votes and the required 
minimum times for comments on the tagging list and time for voting.
Tags existed before that system .. these normally have the status 
defacto. Tags that have not been 'approved' but have large use might 
have the status 'inuse'.

> There are thousands of renders, each one is free to use the tags they 
> want. If you want a specialist cycle map or specialist sports map you 
> can create it, focussing on the items you want to show. The problem 
> with having a few maps on the landing page of OSM is that newcomers 
> assume they are the way things are rendered, when anything is possible.
> Voting is, IMHO, largely pointless and possibly a bad thing as it 
> lends an air of importance to a tag when in reality a couple of dozen 
> people said Yes to an idea they may know nothing about nor even ever use.
By seeking the tagging groups discussion a wider world view can be 
obtained rather than a local view possibly of one person.
The voting can be destructive. But the discussions can be helpful.

> The only metric that matters is whether a tag is used, and yes landuse 
> = highway is used and makes a lot of sense to me.

Agree that landuse=highway makes sense.

I disagree that landuse=highway would confuse a router.. routers look 
for the key highway=* ... not the value *=highway.
So I think the comment that landuse=hightway cannot be used is totally 

The acceptance of a tag by renders goes a long way to getting people to 
use it.
Catch 22 is that the renders don't like to use a tag unless it has 
significant use.
One way of encouraging use is to document it well on the OSM wiki.

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