[Talk-GB] High quality NLS imagery of buildings and HOUSENUMBERS (!) available in London (and Scotland). Create a tasking manger to add this?

Mark Goodge mark at good-stuff.co.uk
Fri Oct 30 18:47:35 UTC 2020



On 30/10/2020 18:37, Mateusz Konieczny via Talk-GB wrote:
> 
> 
> 
> Oct 30, 2020, 16:28 by talk-gb at openstreetmap.org:
> 
>     It has come to my attention that the "Town Plan" map from 1944-1967
>     in NLS is available freely.
> 
> What are its licensing terms?
> 
> "available freely" does not mean "compatible with OSM license"

It's out of copyright, so there aren't any licensing issues in deriving 
data from it.

I would, though, be a little reluctant to use it as a basis for 
wholesale numbering without any supporting local knowledge or survey. 
House numbers can, and sometimes do, change, particularly when streets 
are renamed or rebuilt. So you can't be 100% certain that a house number 
in the 1950s is the same number it is now, even if the building is still 
the same.

Mark



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