[Talk-nz] Making the LINZ NZ Building Outlines available in RapiD

Thu Apr 22 11:36:14 UTC 2021

Hi all,

The NZ Buildings data is now available to be added in Rapid:
https://mapwith.ai/rapid
Click Rapid -> View/Manage Datasets -> Navigate to add the New Zealand
Buildings layer.
I suggest comparing the building outlines to the most recent aerial imagery
available for the area, and making any changes/refinements required, before
uploading. In my tests this was typically for large renovations which have
extended house footprints, full building rebuilds, and occasionally
ignoring buildings which have been entirely demolished.

The buildings can also be added using the MapWithAI plugin for JOSM:
https://josm.openstreetmap.de/wiki/Help/Plugin/MapWithAI

Happy mapping

> Hi all, hope you've had a nice long weekend
>
> Apologies I've let this drag out a while. I would like to proceed with
> having this layer made available in RapiD. I will request that Esri moves
> forward to the next stage of making this layer accessible in the RapiD
> editor. I believe this will then be a second review period, where the data
> is live in the editor but not yet able to be uploaded to OSM. Then a final
> confirmation will mean edits can begin.
>
> No changes have been made to the data since the first proposal, each
> building feature imported through the tool will have two tags:
> building=yes
> ref:linz:building_id={building_id}
>
> I will update when the layer is available for review in RapiD,
> Regards
> Tim
>
> On Tue, Feb 2, 2021 at 12:45 PM TimothÃ©e Duhamel <
> timothee.duhamel at gmail.com> wrote:
>
>> Hi everyone,
>>
>> I'm an Auckland based OSM contributor (username CoyKoi), and I've been
>> looking at ways to improve building coverage. Initially I was doing a lot
>> of my own additions through manual tracing, but I've slowed down on that as
>> it feels like unnecessary work, knowing that there are high quality
>> building outline datasets available. Many of you would have been involved
>> in the previous imports of building outlines, which are in various stages
>> of completion, and no longer active. For example, much of Auckland was
>> never completed. I've been following the changes in data and technology
>> available, and I believe there's an opportunity to begin a new building
>> outline import.
>>
>> So I am getting in touch with the NZ-OSM mailing list seeking the
>> community's support to have the LINZ building outline dataset made
>> available on RapiD. I have already made a quick query on the Maptime
>> Oceania slack channel, where I received support. Daniel Silk from LINZ
>> has been instrumental in working with the RapiD team to have the dataset
>> preprocessed, ready for inclusion.
>>
>> Please review the dataset, wiki page and FAQ below and let me know what
>> you think. I look forward to hearing feedback, discussion and hopefully
>> your support to proceed with the project.
>>
>> This is the original* NZ Building Outlines* dataset, on LINZ Data
>> Service: https://data.linz.govt.nz/layer/101290-nz-building-outlines/
>> Here is the dataset processed ready for community review, before being
>> enabled in RapiD:
>> https://www.arcgis.com/home/webmap/viewer.html?useExisting=1&layers=ef9136b079e24bbfb432be9bbdd246ff
>>
>> A *wiki page* for this project has been created,  with plenty of
>> information at
>> https://wiki.openstreetmap.org/wiki/Import/New_Zealand_Buildings
>>
>> *What is RapiD?*
>> RapiD is a special version of the standard iD web editor which offers
>> suggested features to the user. The user can select the features and choose
>> to include them in their changeset. Or they can choose to ignore a feature,
>> for example if they know a building doesn't exist, or would rather draw it
>> themselves. This means that the data is being added with a high degree of
>> oversight, compared to other import processes, and users are restricted to
>> adding only 50 features per changeset. There is also a JOSM plugin
>> available.
>>
>> *How does it work?*
>> I would suggest trying RapiD hands-on, to see how the suggestions work. I
>> have been testing it in Australia, where they have had Microsoft Buildings
>> available in RapiD since October. (I would note that the LINZ building
>> outlines are of higher quality than the Microsoft data available in
>> Australia)
>> Try RapiD here: https://mapwith.ai/rapid
>> Or the JOSM plugin instructions are here:
>> https://josm.openstreetmap.de/wiki/Help/Plugin/MapWithAI
>>
>> *Will this undo all my hard work drawing buildings already on OSM?*
>> *No *- RapiD only suggests features where there is no existing feature
>> already. Areas that are already well mapped will show very few, if any,
>> suggestions.
>>
>> *Is this an import?*
>> This is not a systematic bulk import like previous LINZ data imports, but
>> yes essentially this is enabling users to perform small, manual imports.
>> Having said that, I'm sure that a tasking manager project could be set up
>> to have a more systematic approach to reviewing and importing the data.
>>
>> *Any risks?*
>> The building outlines were generated from imagery up to 8 years old in
>> some areas, so in those places there will be buildings suggested which have
>> since been demolished. Correctly identifying and ignoring these features
>> will depend on users having local knowledge or consulting more recent
>> imagery when manually adding the buildings. Also there are false-positives
>> where caravans, shade sails, canopies have been digitised as buildings -
>> again these could be picked up by the user when manually reviewing the
>> buildings.
>>
>>
>>
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