[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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