[Talk-GB] Surveying rural buildings

Mateusz Konieczny matkoniecz at tutanota.com
Wed Jul 22 20:25:13 UTC 2020


OSM building data was already used in Poland for flood preparation analysis.

It was used to supplement official building dataset, that was of much higher detail and accuracy, 
but also outdated (updated every N years) and was not including illegally constructed buildings
and buildlings not requiring planning permissions (as it was based on construction permits).

Jul 22, 2020, 21:37 by nick at foresters.org:

>
> Hi Mateusz
>
>
> Many thanks for your comments. 
>
>
> It would also be good to hear from others, particularly around      the question of the purpose of mapping. I was thinking that my      purpose was to provide other people (OSM mappers and the general      public) with the information that meets their needs. The problem      is that without knowing how people use the maps, identifying the      quality of the data is tricky. The other challenge for people      using the maps is not knowing what the quality is ~ e.g. how      comprehensively properties are mapped, precision in terms of      location etc. I also wonder if the quality is good, that people      might use OSM as the map to go to e.g. for Planning applications?
>
>
> Cheers
>
>
> Nick
>
> On 22/07/2020 13:20, Mateusz Konieczny      via Talk-GB wrote:
>
>>
>>
>>
>> Jul 20, 2020, 12:29 by >> nick at foresters.org>> :
>>
>>> Dear all
>>>
>>> I have been mapping a few properties using Bing maps with          local knowledge supplemented by some physical measuring (tape          measure or simply pacing). I now want to ramp up my mapping          but the challenge especially in rural areas is that sometimes          the outline of a building is not clear - either obscured (e.g.          trees) or unclear (e.g. decking or car ports). Also some          aerial imagery is offset. Also, most of the properties are not          along public roads. So my question is what are the preferred          methods for surveying that others are using?
>>>
>> Nobody replied so far so...
>>
>> I am not worried too much about geometry offset, especially        in rural areas where
>> moving building to fix offset is usually not problematic.
>>
>>> Supplementary question, do you include or exclude          conservatories, car ports etc. from the main structure of the          property?
>>>
>> It depends. I usually include them in case of armchair        mapping of aerial images (unless there is
>> a visible gap). In mapping during survey it depends whatever        car port is part of a building structure
>> or a separate structure standing next to house.
>>
>>> I guess at the back of my mind is what do people perceive          as the purpose of mapping (hope I have not opened a can of          worms).
>>>
>> In my case I map what is useful for projects that I use/like        or is very simple to map
>> (=available as StreetComplete quest).
>>
>> So right now I map parking lanes for >> https://github.com/dabreegster/abstreet
>> and in rural areas I tend to map hiking routes rather than        buildings.
>>
>> _______________________________________________Talk-GB mailing list>> Talk-GB at openstreetmap.org>> https://lists.openstreetmap.org/listinfo/talk-gb
>>

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