[OSM-dev] OpenstreetMap Trace Analysys

[John Smith]

2009/10/12 John Robert Peterson <jrp.crs at gmail.com>:
> (dang -- I think I may have just sent that wrong -- apologies if you get it
> twice)
>
> I thought the options were:
>
> private: no one but you ever gets to see any of the data (not even totally
> anonymised)
>
> public: data is anonymised, but is otherwise publicly available.
>
> is this not right?

That's what I assumed in the first place, but it isn't the case. The
upload page next to the public/private tick box links to a wiki page
explaining it.

> @john smith:
> Unfortunately that won't work in this case. The GPS they use lumps
> several days worth of traces together, I'm not sure why it doesn't
> split them up based on when it's switched off but that's not
> happening, this problem could be over come by looking at time stamps
> but someone has to code something to do that.
>
> I've spent quite a while processing gps stuff lately, and may well be able
> to come up with something, what are the exact parameters of the data and the
> conditions applied?

I've converted it from nmea to gpx, the conditions are they don't want
people knowing their camping spots, but not all stops are camping
spots it could be just a place they pulled over to have lunch or visit
tourist info centres, it's not going to be very easy to anonymise the
data.