[OSM-legal-talk] distance calculations

[Simon Poole]

Am 16.12.2019 um 17:22 schrieb Nuno Caldeira:
> it's a derivated, therefore share alike. I'm glad they trusted OSM data.

I'm not sure what you are referring to here.

Yes the distances are a Produced Work which, if publicly used, implies
that if a Derivative Database was used to produce the distances that
should be made available, but likely this was unmodified OSM data so no
need to actually do that.

The centroids of the locations of the pupils houses and the school are
clearly a separate database and only serve as inputs to the routing
algorithm, per ODbL 4.5.b only the OSM database  component of a
Collective Database used to generate a produced work needs to be
licensed on ODbL terms.

It would seem that this is actually a school book example of when SA
does -not- apply.

Simon

PS: from the description it is not even clear if the output was publicly
used to start with.

>
> On Mon, 16 Dec 2019, 15:25 , <matthias.straetling at buerotiger.de
> <mailto:matthias.straetling at buerotiger.de>> wrote:
>
>     Dear IANALs,
>
>     I'm sorry to ask an additional question.
>
>     A while ago, I've listened to a talk about navigation of pupils
>     from their home to the school - it was used to decide whether the
>     pupil gets a free bus ticket or not.
>
>     The distance calculation was done by a land registry office, which
>     didn't have a route-able road & path network, but had trust in the
>     OSM data, since they inspected it for quite a while. For
>     completeness, they've used their own housing and school locations,
>     but didn't use any from OSM.
>
>     They routed from the pupil's house to the school on the OSM
>     network. Of course, the results were released in public.
>     Do such distance calculations also trigger share-alike on the
>     non-free data (here: schools & houses).
>
>     Regards,
>     Matthias
>
>
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