[OSM-talk] Activity statistics per city (or region)

[César Martínez Izquierdo]

Thanks to everyone for so many links and ideas. I like the idea of
combining active users + nodes to build the indicator.
Just to be sure I understand the existing approach: do you need to get
the figures from a planet snapshot (or even the whole history), or is
there any other API or service that provides access to existing users?

PD: I do not intend to do a complex study, so depending on the
complexity of the required processing I might finally base my
estimation on some of the indicators you have already created at
country level.

Greetings,

César Martínez


On 21 October 2015 at 23:45, Mateusz Konieczny <matkoniecz at gmail.com> wrote:
> On Wed, 21 Oct 2015 17:00:49 +0200
> César Martínez Izquierdo <cesar.izq at gmail.com> wrote:
>
>> Hi, we are interested on getting some OSM statistics per city.
>>
>> The idea is to get a rough idea of the activity of the community on
>> each city, by counting the number of active users or the number of
>> existing nodes on the city (which could be then divided with the total
>> number of inhabitants in order to get a relative indicator).
>>
>> As we only need rough estimates, we could also use region statistics
>> if they are easier to compute or already available. Our area of study
>> is cities having >= 50000 inhabitants in Europe.
>>
>> Do you know if someone has already produced such (or similar)
>> statistics? If not, do you have some ideas on how to compute them?
>
> Counting nodes is a poor idea. For start - only recently changed nodes
> should be counted (edited during last three month?). There are many
> cases of imported data that just sits there and slowly gets outdated
> as nobody maintains it.
>
>
> Counting number of active users may work better. It will suffer less
> from problems with imports - also, just because there is one massively
> active mapper does not mean that there is "community".
>
> But it may be tricky to exclude remote mapping - for example many
> places in Nepal were edited by many people but does not mean that there
> is any local community. But in Europe it may be a lesser problem.
>
>
> I would also consider using number of solved notes (within some
> time, like last two months). Notes may be less affected by imports
> (though it may be skewed by note spam).
>
>
> Probably some composite of multiple factors would give the best result.



-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
   César Martínez Izquierdo
   GIS developer
   -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
   Blog: http://geotechnotes.wordpress.com/
   ETC-SIA: http://sia.eionet.europa.eu/
   Universitat Autònoma de Barcelona (SPAIN)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -