[Talk-us] Percentage of data imported vs mapped

andrzej zaborowski balrogg at gmail.com
Wed Jun 23 17:23:35 BST 2010


On 23 June 2010 18:12, Dave Hansen <dave at sr71.net> wrote:
> On Wed, 2010-06-23 at 12:05 -0400, Richard Weait wrote:
>> On Wed, Jun 23, 2010 at 11:42 AM, McGuire, Matthew
>> <Matt.McGuire at metc.state.mn.us> wrote:
>> > Does anyone know the percentage of OSM data that is imported vs mapped in
>> > the US? How does this compare to other countries?
>>
>> When TIGER was imported it dominated the database and contributed data
>> from all countries combined.  The US community is growing and
>> individual contributions are growing, but so are imports from other
>> sources.

Hence the question for statistics.. I imagine. :)

>
> In Oregon, 48% of the objects have been most recently modified by
> non-TIGER sources.  Calculated this way:
>
> grep -o 'user="[a-zA-Z0-9]*"' oregon.osm | sort | uniq -c | sort -n | grep -vi tiger | awk '{sum += $1} END { print sum;}'
> grep -o 'user="[a-zA-Z0-9]*"' oregon.osm | sort | uniq -c | sort -n | awk '{sum += $1} END { print sum;}'

95% of the objects in Oregon edited by myself I'd still considered
TIGER-sourced (it was a massive name= change and based on TIGER docs
only).  grep -vi tiger\\\|balrog would be more accurate.

Cheers




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