But to push the average sample rate for an area up to a useful level you will need about a 100 trips on the same road - easy near a depot or a big customer, not so elsewhere. It might give a reasonable track in very slow-moving traffic.
Just uploading all the tracks to OSM and then looking at the combined download with JOSM will give you the average. I think Potlatch joins the points together with a line which might be distracting when they are three minutes apart. cheers, Chris ----- Original Message ---- > From: Gisle Sælensminde <gs...@broadpark.no> > To: Erik Söderström <e...@yi.se> > Cc: osm <talk@openstreetmap.org> > Sent: Sunday, 18 January, 2009 16:48:18 > Subject: Re: [OSM-talk] 68 GPS units donated to OSM > > > > > > My name is Erik Söderström and I live in Gothenburg, Sweden. > > I'm fairly new to this project, but have quickly been drawn in due to my > > fascination of all things free. > > > > I work as an IT-admin at a logistics company (haulage). We currently > > have six trucks that are GPS-enabled, and those send in data to our > > servers (which I then compile and contribute). The problem is that the > > data is sent 3 minutes apart so the tracks are in very low resolution. > > > These data can be useful if drivers drive the road multiple times, as a > logistics company surely does. Since these points has the same accuracy > as loggers that log each second, and probably does not map the exact > same spot each time it passes, it can over time be high enough > resolution to map the road. It is not low resolution, just low sampling > rate. Thus these data can still be valuable if collected over time. This > will require some work on the dataset, but there should be people that > can do this. I can help you with this. One could for example collect > all data, not by vehicle, but by area, so other people could use it for > mapping. These data would be annonymized, so that one would not know > anything of which driver drove where and when. > > Gisle Sælensminde > (email - gsale - broadpark - no) > > > > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk