[talk-au] Mapping easements

[Stéphane Guillou]

Thanks for raising the issue, Graeme.

I opened the issue but I have limited understanding of what an easement 
is in different jurisdiction.

Ben makes a good point in that an easement can be considered as an 
absence of something else, so might not need to be mapped, more 
specifically a space in between plots that can be built. Maybe why there 
is so little of it mapped on OSM?

Where the note points, I believe the reason it exists is access to the 
small bit of bushland and the creek, for emergency services for example. 
In that case, should it be tagged as a track rather than a footway? And 
what access tag should be used?

Cheers

On 18/3/22 15:29, Benjamin Ceravolo wrote:
> If there is no formed track (but vehicles do use it) then I would 
> think that highway=track or path, surface=grass, visibility=no, low, 
> etc. and access=private, otherwise landcover=grass would be fine in my 
> opinion.
> OSM is not a town planning serves it, it does not contain zoning codes 
> or laws so why should it contain easements?
> Further to this, easements are a lack of ground structure (due to an 
> underground, overground, or planned utility/road), therefore not 
> having anything mapped on top of them would not cause a problem (and 
> the eagle eyed may think there is an easement there)
>
> Ben
>
> On Fri, 18 Mar 2022 at 10:58, Graeme Fitzpatrick 
> <graemefitz1 at gmail.com> wrote:
>
>     A note had been raised concerning mapping a Council access easement:
>     https://www.openstreetmap.org/note/2883145#map=19/-27.50901/153.03017
>
>     Suggestion was made that these should be leisure=nature_reserve as
>     it is not to be developed on?
>
>     I suggested that they're just highway=footway + surface=grass,
>     possibly with access=private if so signposted e.g:
>     https://www.openstreetmap.org/way/538670878
>
>     Alternative suggestion was landuse=easement?
>
>     Have just done some searching &, strangely, there are basically no
>     easements in OSM!
>     https://taginfo.openstreetmap.org/search?q=easement
>
>     The 13 "easements" are all in Australia for gas pipelines:
>     https://overpass-turbo.eu/s/1gXr,
>     while the 28 "easement_filed" are all in Florida for power lines:
>     https://overpass-turbo.eu/s/1gXs
>
>     The only other mentions of easements are in the wiki for US Public
>     Lands:
>     https://wiki.openstreetmap.org/wiki/United_States/Public_lands,
>     together with a brief mention in Massachusetts:
>     https://wiki.openstreetmap.org/wiki/Massachusetts/Conservation
>
>     So, how would we like to map these areas?
>
>     3 alternatives would seem to be nature_reserve / landuse or highway?
>
>     Any other suggestions / thoughts?
>
>     What do we all think?
>
>     Thanks
>
>     Graeme
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Stéphane Guillou
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