[Talk-GB] Google maps added addresses!
Michael Collinson
mike at ayeltd.biz
Tue Dec 29 10:25:27 UTC 2020
+++1 to mapping addresses as standalone nodes!
While it is an alternative accepted style to put them on buildings, I
personally loathe it. A building is a building, an address is an
address. A one-to-one relation is common but not 100%. The address may
not even be logically applicable to a building, examples: schools (a
cluster of buildings on a site), recreation grounds (perhaps no building
at all).
Dividing a building vertically for the purpose of address in messy. Yes,
there is some logic to the concept of separate living/working volumes
but then that should apply to horizontal division as will, common in
some parts of the world. For me, a semi-detached house is a
semi-detached house and a terrace is a terrace.
And the worst thing, and my main motivation for writing, is that is
destroys simple 3-D modelling,
https://wiki.openstreetmap.org/wiki/Simple_3D_buildings . A
semi-detached house with a hipped roof becomes impossible to model if
two conjoined buildings or even building parts as far as I can see (?).
I suggest always modelling addresses as separate nodes placed in a
logical place for navigation.
A jolly Christmas rant brought to you by Mike. Best wishes to all.
On 2020-12-29 09:28, Simon Poole wrote:
>
> At the danger of pointing out the blatantly obvious: you can easily
> survey and add addresses as stand alone nodes without adding buildings
> before.
>
> It is quite a fast process and, at least for me, is only limited by
> walking speed and getting distracted by other details which you tend
> to only see when surveying on foot. It is what we used to do before
> aerial imagery was widely available and will result in fully
> functional routing. Given how painful correcting building geometries
> is I would always prefer an address node over mapping a building
> outline from a sub-par source.
>
> Simon
>
> Am 28.12.2020 um 17:21 schrieb Rob Nickerson:
>> Hi all,
>>
>> I just spotted that Google Maps has added house numbers to their map
>> of the UK. They are all over the place - does anyone recognise the
>> source?
>>
>> What can we do to improve coverage of addresses in OSM? I notice that
>> we have some pretty good aerial imagery now. Should we see if we can
>> get good building outline from an AI / machine learning approach? If
>> the quality is good we can then use these to help add addresses. For
>> example we can ask new mappers to add addresses using tools such as
>> StreetComplete.
>>
>> Any thoughts much appreciated. I have a feeling that if we can come
>> up with a plan we may be able to get some help from several of the
>> big tech companies now interested in the UK. It would be better if we
>> were steering this rather than it happening to us.
>>
>> Best wishes,
>> *Rob*
>>
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