[OSM-talk-fr] Road Network Improvements in France

Florian LAINEZ winnerflo at free.fr
Ven 12 Mar 08:43:14 UTC 2021 

Hi Murad,
Thanks for reaching out to us and thanks in advance for your involvement.
This is a collaboratively written answer.

First of all, here’s a little introduction of the local context.

The coordinated effort of the French community already achieved to map all
the primary network (Including motorways) and the secondary network.

At this point, there isn’t any coordinated effort to complete the road
types.

A current task is to finish to map all the roads, your help is very welcome
with this.
Here’s a list of missing (named) roads according to a comparison between
OSM and IGN’s data:
https://osmose.openstreetmap.fr/fr/errors/?item=7170&class=1&country=france

IGN is *Institut Géographique National*, the French National Geographic
Institute.

The french local chapter, approved by the OSM foundation, is a non-profit
organization called “OpenStreetMap France”.
Since 2017, OSM France signed an agreement
<https://www.openstreetmap.fr/signature-dune-convention-de-partenariat-avec-lign>
with IGN enabling the community to use their very good aerial imagery (20
cm or better locally) (*BD Ortho* layer on Josm). In the next few months we
will use in some areas an even more precise imagery (5 cm) from Enedis (the
French National Energy company). We also have a lot of aerial imagery made
available by local authorities (20 cm or better) with different vintages.
They are all compiled on our servers and on JOSM: *Ortho_tous* layer and
*Ortho_HR* layer

Since january 2021, IGN also published a very wide part of its database
(see
https://geoservices.ign.fr/documentation/diffusion/telechargement-donnees-libres.html).
Therefore the community is still under process to compare and integrate
these datasets (see
https://lists.openstreetmap.org/pipermail/talk-fr/2021-January/102794.html).
For example we collectively corrected the shape of the secondary network
these last 2 months.
There is definitely gold to find to make sure we map the whole road
network, including bridges, tunnels and more.
Therefore your support is welcome to understand, analyze, compare and
integrate this very rich data source.
Please don’t integrate IGN data as it is: it’s not a perfect data source
and the community's local knowledge should be taken into account in the
process.

We suggest that:

   1. You begin with small, localised edits that the community could review
   2. You help with the current Osmose tasks involving roads
   3. You communicate a lot with the local community. We created a
   dedicated thread on our forum where we can discuss in French and English :
   https://forum.openstreetmap.fr/t/bolt-road-improvment-en-anglais/6283
   4. We discuss further on the forum to understand your operations and QA
   involvment and explain you better our own activities

For example, we can imagine that you create new Osmose tasks and get
involved in our *projects of the months* (projets du mois) available on
https://projetdumois.fr

Regards

Le ven. 12 mars 2021 à 08:01, Murad Vardzelyan via Talk-fr <
talk-fr at openstreetmap.org> a écrit :

> Désolé, j'ai oublié de poster la version française.
>
> Bonjour à tous !
>
> Merci beaucoup pour toutes vos questions, suggestions et objections !
>
> Je vais utiliser https://www.deepl.com/fr/translator et écrire en français
> également.
>
> Nous utilisons les traces GPS (privées et non téléchargeables) générées par
> nos conducteurs pour améliorer le réseau routier. Pour l'instant, les
> améliorations portent sur les routes manquantes, les balises à sens unique,
> les accès routiers, les restrictions de virage. Le processus comprend la
> détection d'éventuelles routes manquantes sur la base des données GPS dont
> nous disposons → examiner les candidats à l'aide de sources accessibles au
> public (telles que OSC et Mapillary) → modifier la carte si le candidat est
> valide (il en va de même pour les balises à sens unique, les accès routiers
> et les restrictions de virage). Comme nous opérons en France, nous
> contactons l'équipe locale de Bolt en cas de doute, et ils fournissent des
> données de terrain dans de tels cas.
>
> En ce qui concerne la classification des routes : C'est l'un des cas où
> nous avons besoin d'un consensus sur la classification locale. Un exemple
> pourrait être le suivant : sur la base de nos données GPS, nous voyons
> qu'un véhicule à 4 roues est passé par une autoroute=chemin de terre → nous
> l'examinons et voyons qu'il s'agit en fait d'une route de service → nous ne
> le modifions que si nous sommes sûrs à 100% que la classification de la
> route est incorrecte.
>
> A partir de maintenant, j'utiliserai le sujet dédié du forum ici comme
> suggéré :
> https://forum.openstreetmap.fr/t/bolt-road-improvement-en-anglais/6283.
>
> Concernant les jeux de données que nous utilisons : jusqu'à présent,
> ceux-ci sont privés.
>
> Veuillez me faire savoir s'il y a des sujets que j'ai oublié de couvrir.
>
> Merci encore une fois pour cette discussion active.
>
> Salutations,
>
> Murad de Bolt Map Production
>
> On Fri, Mar 12, 2021 at 10:59 AM Murad Vardzelyan <
> murad.vardzelyan at bolt.eu>
> wrote:
>
> > Hey Everyone!
> >
> > Thank you a lot for all your questions, suggestions and objections!
> >
> > I will use https://www.deepl.com/fr/translator and write in French as
> > well.
> >
> > We use GPS traces (private and non-downloadable) generated by our drivers
> > to improve the road network. For now, improvements include missing roads,
> > one-way tags, road access, turn restrictions. The process includes
> > detecting possible missing road candidates based on the GPS data we have
> →
> > review the candidates using publicly available sources (such as OSC and
> > Mapillary) → editing the map if the candidate is valid (same goes for
> > one-way tags, road access and turn restrictions). Since we operate in
> > France, we reach to the local Bolt team when there's a doubt, and they
> > provide with ground data in such cases.
> >
> > Regarding the road classifications: This is one of the cases when we need
> > the local classification consensus. An example could be the following:
> > based on our GPS data we see that a 4-wheel vehicle passed through a
> > highway=footpath → we review it and see that actually it's a service
> road →
> > we edit it only if we're 100% sure the road classification is incorrect.
> >
> > From now on, I will use the dedicated forum topic here as suggested:
> > https://forum.openstreetmap.fr/t/bolt-road-improvement-en-anglais/6283.
> >
> > Regarding the datasets we use: so far those are private.
> >
> > Please let me know if there are subjects that I missed to cover.
> >
> > Thank you once more for the active discussion.
> >
> > Regards,
> >
> > Murad from Bolt Map Production
> >
> >
> >
> > On Thu, Mar 11, 2021 at 10:15 PM ades.sept <ades.sept at orange.fr> wrote:
> >
> >> en complément,
> >>
> >> peut importe qui contribue, mais dans le cas présent, peut-être que
> >> juste une annonce d'erreur possible suffirait… style osmose donc, quitte
> >> à dire toujours la même chose, c'est le terrain qui prime, pas le
> >> fauteuil !
> >>
> >> Le 11/03/2021 à 12:37, Murad Vardzelyan via Talk-fr a écrit :
> >> > Hey Cyrille37,
> >> >
> >> > Thanks for your reply.
> >> >
> >> > Sorry for not being able to write in French. Is there any other
> contact
> >> > channel of the French OSM community, that you find more convenient to
> >> use?
> >> >
> >> > Regards,
> >> > Murad
> >> >
> >> > On Thu, Mar 11, 2021 at 1:30 PM Cyrille37 OSM <
> >> cyrille+talk-fr at giquello.fr>
> >> > wrote:
> >> >
> >> >> Hello Murad , and welcome.
> >> >>
> >> >> The majority of regular contributors subscribed to this discussion
> list
> >> >> will not be able to exchange accurately in English. I am one of them,
> >> >> despite this little message in English ;-)
> >> >>
> >> >> Regards, Cyrille37.
> >> >>
> >> >> Le 11/03/2021 à 10:02, Murad Vardzelyan via Talk-fr a écrit :
> >> >>> Hi there,
> >> >>>
> >> >>> I’m Murad from Bolt.
> >> >>>
> >> >>> We are going to start improving the road network in France. Project
> >> >> details
> >> >>> can be found here:
> >> >>>
> https://wiki.openstreetmap.org/wiki/Organised_Editing/Activites/Bolt.
> >> We
> >> >>> would like to get familiar with local mapping guidelines if there
> are
> >> >> any.
> >> >>> Please, also, let me know if you have preferred contact channels
> other
> >> >> than
> >> >>> this talk-list.
> >> >>>
> >> >>> Waiting for your reply.
> >> >>>
> >> >>> Regards,
> >> >>>
> >> >>> Murad from Bolt Map Production
> >> >>> _______________________________________________
> >> >>> Talk-fr mailing list
> >> >>> Talk-fr at openstreetmap.org
> >> >>> https://lists.openstreetmap.org/listinfo/talk-fr
> >> > _______________________________________________
> >> > Talk-fr mailing list
> >> > Talk-fr at openstreetmap.org
> >> > https://lists.openstreetmap.org/listinfo/talk-fr
> >> _______________________________________________
> >> Talk-fr mailing list
> >> Talk-fr at openstreetmap.org
> >> https://lists.openstreetmap.org/listinfo/talk-fr
> >>
> >
> _______________________________________________
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>


-- 

*Florian Lainez*
@overflorian <http://twitter.com/overflorian>

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