[OSM-dev] Workflow for bulk upload of GPX files

[Ajay Singh1]

Hi Joseph,

Thanks for the detailed information. I'll try these options.

For leveraging the tasking-manager, I was assuming that I'll need a team of
mappers who will manually create the ways by looking at the trace I've
uploaded. Is there any alternative way? e.g. I can just upload and someone
else will make roads by looking at that trace.

On Mon, May 20, 2019 at 7:50 PM marc marc <marc_marc_irc at hotmail.com> wrote:

> if you want to add yourself all these missing ways in osm,
> a simpler workflow :
> give a part to each one
> load the gpx trace with the editor of your choice
> simplify and connect it to the concerned ways, add tags
> upload the new ways into osm.
> some will say you may send the trace too.
> once finished, delete the trace of your computer
> or move it to a "done" directory
>
> and so on with the next trace until you finish your part :)
>
> Le 20.05.19 à 15:12, Ajay Singh1 via dev a écrit :
> > Hi Joseph,
> >
> > Thanks for your response. I've extensively cleaned the GPX data and I'm
> > marking only those roads as 'missing' ones where I'm getting trace more
> > than a threshold number of times, say 5 times.
> >
> > Few questions -
> > 1. Should I use something like
> > https://github.com/hotosm/tasking-manager to manage the entire process?
> > 2. As you mentioned - "/If possible, the mappers should look at more
> > than one GPS trace on the/
> > /road: /", do the mapper has to look at GPS in one tab and then make the
> > corresponding change in openstreetmap.org <http://openstreetmap.org>?
> > I've checked various ways to upload GPX data on OSM but I'm not getting
> > it right.
> >
> > Is there any documentation/tutorial for this process?
> >
> >
> > On Mon, May 20, 2019 at 5:56 PM Joseph Eisenberg
> > <joseph.eisenberg at gmail.com <mailto:joseph.eisenberg at gmail.com>> wrote:
> >
> >     Ajay,
> >
> >     It's great that you are adding more GPS traces for mappers to use.
> >     These are really helpful for checking the offset of aerial imagery
> and
> >     finding roads and paths to map.
> >
> >     I think you first 2 steps look fine. As far as tags for GPS traces,
> >     you can look at some other traces in your area to see what mappers
> >     usually add. It's common to mention that the trace was obtained by
> >     motorcycle, for example
> >
> >     For the 3rd step, make sure you follow the best practice for adding
> >     highways to OSM. Don't import the GPS traces directly.
> >
> >     A single GPS trace along a road will be offset from the centerline,
> >     since the motorcyclist has to travel on one side of the road. Also,
> >     GPS traces may have errors due to problems with poor signal or
> >     reflections in some areas. And GPS traces have too many nodes on
> >     strait sections, but sometimes too few around curves.
> >
> >     If possible, the mappers should look at more than one GPS trace on
> the
> >     road: at least one from each direction, so that the center of the
> road
> >     is clear. If possible, also check aerial imagery and compare to the
> >     GPS trace. The mappers can use the GPS traces and the aerial imagery
> >     together to find the centerline of the highway and map that, using
> the
> >     right number of nodes for straight sections and curves.
> >
> >     Because of this, it's not possible to find out exactly how many of
> >     your GPX files have become roads. But if you are adding GPS traces on
> >     roads that are currently missing in OSM, it's very likely that your
> >     work will be a main reason that new roads are added, and it will also
> >     make them more accurate.
> >
> >     On 5/17/19, Ajay Singh1 via dev <dev at openstreetmap.org
> >     <mailto:dev at openstreetmap.org>> wrote:
> >      > Hi Team,
> >      >
> >      > I have got a few thousand cleaned GPX files of motorbikes. These
> >     trace
> >      > files majorly represent missing roads in OSM (which I have
> >     derived by using
> >      > months of bikers data and identifying tracepoints which are not
> >     near any of
> >      > the road segments in OSM).
> >      > I want to contribute to OSM on a regular basis and want to take
> >     an opinion
> >      > on my workflow for submission of these trace files to OSM.
> >      >
> >      > Workflow:
> >      >  1. Upload all GPX files in bulk using OSM UI(
> >      > https://wiki.openstreetmap.org/wiki/Upload_GPS_tracks) or using
> API(
> >      > https://wiki.openstreetmap.org/wiki/API_v0.6).
> >      >  2. Pass some GPS-tags, e.g. name, id, status, etc. So, that I
> >     can query
> >      > data that I have uploaded.
> >      >  3. Have a team of 2-3 people who can then use JOSM or other
> >     editors to
> >      > make ways/roads from this GPX data to OSM
> >      >
> >      > Questions:
> >      >  1. Is this a correct workflow for uploading and making
> >     ways/roads from GPX
> >      > files?
> >      >  2. Can I use GPS-tags to track of how many gpx files have been
> >     converted
> >      > into ways/roads?
> >      >
> >      > Also, Is there any alternative to have this capability?
> >      >
> >      > Awaiting a quick response.
> >      >
> >      > --
> >      > Regards,
> >      > Ajay Singh
> >      >
> >
> >
> >
> > --
> > Regards,
> > Ajay Singh
> >
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> > dev at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/dev
> >
>
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-- 
Regards,
Ajay Singh
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