[Talk-GB] Invalid building levels and building (part) height license compatibility

Brian Prangle bprangle at gmail.com
Mon Mar 18 15:12:20 UTC 2019

Try this site
origin of building height data is Environment Agency LIDAR data under OGL



On Sat, 16 Mar 2019 at 19:20, Neil Matthews <ndmatthews at plus.net> wrote:

> Anyone mapping in Manchester might want to take a look for strange
> fractional building:levels.
> It's possible that some commercial editors found that they got better
> results with open source 3D renderers by using ~0.75 per building level,
> rather than the documented value of 1.
> We recently had a spate of strange edits around Aztec West -- with some
> 1-level mobile homes being labelled as 1.5 (presumably thought they were
> a "scaled" two storey house when satellite mapping).
> On a similar vein, what are acceptable data sources for building:height
> -- and how far should one ask for proof that these haven't come from a
> source that would be problematic to OpenStreetmap?
> Cheers,
> Neil
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