[Imports] Road data imports from CC0 government database for Sweden

[NKA mapper]

Thank you, Anders - this is a very helpful and most welcome initiative.

I did not find a link to the import files - they are here may be reviewed:
http://nvdb-osm-map-data.s3-website.eu-north-1.amazonaws.com

I only have two issues, which would be good to resolve:

1) I would prefer to be able to see which roads are state/national roads
and which are county roads (primary/others), tagged as highway=trunk,
primary and secondary, respectively. This way I can make decisions about
up/downgrading them before uploading to OSM. Currently, the script is
making educated guesses about which tag to use, so that a county road could
be any of highway=trunk, primary, secondary and tertial. That makes it
difficult and time consuming to "read" the import file without spending
time on analysing highway numbers etc.

2) In my opinion there is too much highway=track at the moment. In many
mixed urban/rural municipalities such as for example Uppsala, several
residential and rural roads are tagged as track. I think it would be better
if highway=track is only used for the forestry roads. When importing, I
would spend too much time on retagging track to unclassified and service
with the current proposal.

Here are a few examples on how trunk/primary/secondary would look with
"standard" tagging: Examples
<https://www.jottacloud.com/s/0592631d082283b49939bb929c3050af021> (these
examples are just for illustration, they are not complete end products).

I already know Anders' opinion on these two questions, but it would be good
to understand the opinion of other members of the community.

In other respects an excellent job by Anders :)

/NKA

ons. 24. mar. 2021 kl. 11:05 skrev Anders Torger <anders at torger.se>:

> FYI, I just went through the archives of talk-se a bit further back and
> indeed there I see many names I recognize also from the OSM Sweden
> Facebook group, so it's known also by those users. My email there still
> seems stuck in a moderator queue though so it's not appeared yet and
> there have been no posts in that list since February 12.
>
> I've also just posted to the OSM forum,
> https://forum.openstreetmap.org/viewtopic.php?id=72307 but again much
> lower activity there than in the facebook group and fewer of the
> experienced mappers so I don't have high hopes for a lively discussion
> there, but we'll see. Just making sure that so many as possible is
> reached before we go ahead.
>
> Most discussion so far have taken place in the facebook group as well as
> the issue tracker when the translation script has been debugged and
> refined https://github.com/atorger/nvdb2osm/issues/, and there most
> feedback has been from a Norwegian import expert, the brain behind the
> Norwegian NVDB import so it's been very useful.
>
> In the broader facebook group there's overall only been a handful of
> individuals involved actively in the discussions which has mostly been
> by answering open questions I've put out to the community regarding best
> practices, plus we've had endorsement by end users and casual mappers
> that just want to see better quality in the Swedish OSM road data. The
> Swedish OSM community is pretty small, and the group of users with
> long-term experience that is also active today is even smaller so we do
> not expect a big discussion to take place within the Swedish community.
>
> One concern that has been raised not by OSM people but from the general
> GIS community which also is active in these forums is how we're supposed
> to keep in synch with NVDB, pushing the idea that an import would be
> meaningless if it can't keep up the changes. NVDB is indeed continously
> updated when new roads are built or traffic rules change, there's even
> an open live API to get live changes. Our response to that is that most
> of the road network is static, and once the overall quality of the OSM
> data is raised such that roads are actually positioned correctly and
> have good coverage it's much easier to make quality assurance tools that
> can automatically compare and make small diffs between NVDB and OSM say
> on a yearly basis for manual review and inclusion. It's an open question
> though, for the initial import work we don't have a plan to
> automatically keep track of changes.
>
> /Anders
>
> On 2021-03-24 08:36, Anders Torger wrote:
> > I've made an announcement to talk-se as the process requries, no reply
> > yet. But it was recent and there is very low activity in that group.
> > Still waiting. I actually do not know about the visibility, there's
> > relatively low activity in also in the Facebook group, lots of passive
> > listeners which I do not know the names of. That I ended up there is
> > by going through all the various forums etc to find where "all the
> > action were", and while relatively low activity it was more than in
> > the other places. (Facebook groups for all sorts of things is very
> > popular in Sweden).
>
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