[OSM-talk-be] GR Flanders data available for mapping!

[Erik B]

Just take care with using the GPX files on the GR Vlaanderen website to 
_correct_ GR routes on OpenStreetMap without further concerns.
The GPX files on that GR website are not always up to date. You should 
at least take in account the route corrections 'Trajectwijzigingen' on 
the GR website 
<http://www.groteroutepaden.be/nl/route/45/gr-5-noordzee---middellandse-zee---deel-vlaanderen.html>.
Those corrections are sometimes in the GPX file and sometimes they 
aren't. And sometimes the route has been changed in the field but those 
changes are not in the GPX file nor is there already a change 
description on the GR website.
So using the GPX files on the GR website to correct GR routes on 
OpenStreetMap can lead to creating faults instead of correcting one. 
Checking in the field can't be improved.

Some examples I recently encountered in Limburg:

  *   the GR 561 between 'Dilserbos Parking' and Opoeteren. I had the GR
    GPX on my GPS when I ran that track and discovered that the marks in
    the field took me along a deviating route on some points.Afterwards
    I saw that the deviations in the field are described as
    'Trajectwijzigingen' on the GR website but they weren't on the GPX.
  * The GR5 between Bokrijk and Kinderboerderij Kiewit has been changed
    in the field recently. It no longer follows a asphalt road but goes
    through a meadow as other walking routes do. This change isn't on
    the GR website but it is correct on Openstreetmap
    http://hiking.waymarkedtrails.org/#?map=16!50.9625!5.3861
    <http://hiking.waymarkedtrails.org/#?map=16%2150.9625%215.3861>

Besides corrections I see the advantage of using GR GPX files to put a 
GR route on Openstreetmap that was't tagged. But that is only possible 
for so far tracks or paths that are used are already on OSM. The 
qualification of those ways aren't on the the GPX file. You can only 
know them by following the GR in the field.

But I like GR Vlaanderen because they already offer GPX files for free 
on their website. In contrary to GR Sentiers in Wallonie where you can 
only find the GPX files of GR's for free on Openstreetmap 
(Waymarkedtrails.org). 
<http://hiking.waymarkedtrails.org/#route?id=4580796&map=12%2150.6159%215.7517>
And they are all far better than GR Sentiers France that forced 
Openstreetmap to delete the tagged GR's because of copyright protection 
in France (after a holiday in the south of France I put a major part of 
GR /Route/ des /Cathares /on OSM. Meanwhile that GR relation that I did 
has been deleted but the paths that I added are still on the map. And 
there were new attempts to put that GR on OSM but for how long?).

Regards,

Erik //


what is on OSM it is result
Op 02-06-16 om 19:10 schreef joost schouppe:
> Good news everyone! We're going on a long hike!
>
> After contacts initiated by Jo, licencing advice by Glenn and Ben, and 
> a talk with Wouter and myself, the Flemish GR organization today gave 
> us the explicit permission to use the GPX files of their routes for 
> improving the GR routes mapped in OSM.
>
> This is only a first step, they are considering managing their route 
> information completely within OpenStreetMap. I hope we can support 
> them in this direction. There are all kinds of ways that they can help 
> us grow our community, and ways in which we can support them. Feel 
> free to start thinking out loud in this thread.
>
> Let's build something together which might inspire organisations 
> worldwide to follow their lead.
>
> But enough with the emotions.
>
> I already added them to the Contributors wiki [1] and I have uploaded 
> the supporting document to the wiki pages [2]. Maybe we can add a 
> little section to some more Belgium wiki pages too?
> I made a little UMAP [3] to help with my first corrections [4]. It's a 
> public map, so feel free to use it (and maybe make a simple tool out 
> of it for tracking our progress in our cleanup?). I started adding 
> #groteroutepaden to my changesets [4]. If we all do that, it might 
> help make some cool statistics.
>
> The GPX files can be downloaded when you get to the page for an 
> individual route at the bottom of the download section [5]. If you 
> spot an error in the GPX or reality, you can send it to them here [6].
>
>
> 1: 
> http://wiki.openstreetmap.org/wiki/Contributors#Grote_Routepaden_.28long_distance_paths_Flanders.29
> 2: http://wiki.openstreetmap.org/wiki/File:Licentie_GR_OSM.pdf
> 3: 
> http://umap.openstreetmap.fr/nl/map/gr-vlaanderen_88642#14/50.8065/4.6619
> 4: 
> http://www.openstreetmap.org/changeset/39738478#map=15/50.7593/4.2846&layers=N
> 5: http://www.groteroutepaden.be/route.php?itemno=68
> 6: http://www.groteroutepaden.be/nl/meld-probleem.html
>
>
> --
> joost schouppe
>
>
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> Talk-be at openstreetmap.org
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