[osm-hu] Road Network Improvements in Hungary

[Murad Vardzelyan]

Thanks for the detailed response, Peter.

The team will be notified on all the problem points you mentioned. We are 
going to translate the wiki to get familiar with the way you map roads in 
Hungary and in case of questions, we will reach out to you (For this, 
please decide which channel is the best to communicate, to avoid double 
discussions).

In case of any suspicious edit, please leave a comment on the changeset and 
if you feel there's a need, feel free to reach out to me through the main 
contact channel (yet to decide as mentioned above).

You are correct, we operate in Budapest and Debrecen therefore we got data 
largely for these two cities.

We use OSM data for route calculation and to provide navigation to drivers, 
and in order for us to be able to correctly do that, we need well mapped 
road network in OSM.

Looking forward for a productive cooperation.

Regards,
Murad

On Friday, March 12, 2021 at 1:33:07 PM UTC+4 grin wrote:

> Hello Murad,
>
> Thanks for replying and taking time to answer the questions! Keep up
> the good work! ;-)
>
>
> Generally, our community believes that Hungary, especially larger
> cities are well mapped and they are worried about changes which are
> not especially wrong but unnecessary (micromapping), and in due course
> create related errors (like changing road geometry while removing
> pedestrian crossing, or breaking public traffic relations, fo
> example).
>
>
> On Fri, Mar 12, 2021 at 9:36 AM 'Murad Vardzelyan' via
> openstreetmap-hungary <openstreet... at googlegroups.com> wrote:
>
> > 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 only if we're 100% 
> sure the candidate is valid (same goes for one-way tags, road access and 
> turn restrictions).
>
> There are a few possible problem points:
>
> - First: see "Bolt contribution" thread here as well as _multiple_
> questions in this thread. Expect to spend a bit more time on us in the
> beginning to prevent unresponded misunderstandings to escalate
> quickly. See especially the one about not responding to changeset
> comments. We try to use "Bolt" in the subject of Bolt related threads
> so you should really check those. It would be good if you also point
> us to a contact method where we can reach you in case of unresolved
> problems.
>
> - We have local orthophotos in multiple areas which are accurate to
> the sub-meters level, and definitely should not be updated by 7-10
> meters precise consumer GPS nor 5-25 meters "accurate" satellite
> photography.
>
> - Same goes to features using multiple manual measures or
> high-accuracy sources (like RTK). (We try to tag them accordingly but
> more often than not these are missing. :-( )
>
> - You should be familar - to some extent - the highway tagging scheme
> we use. Either translate the wiki page by a machine or request local
> team to translate it for you. If you have questions related to that
> feel free to ask, we hopefully can answer most of the questions. :-)
> We may clean up after you a few times but if happens too often it may
> cause friction.
>
>
> > Since we operate in Hungary, we reach to the local Bolt team when 
> there's a doubt, and they provide with ground data in such cases.
>
> Is it correct that you operate only within Budapest and Debrecen? Are
> you active only within the borders of these large (and usually very
> well-mapped) cities?
>
>
> > The GPS tracks are collected from smartphones, and we run internal 
> algorithms to detect possible candidates, and then we do manual editing 
> based on the mentioned GPS candidates, satellite imagery, street imagery 
> combined and never use just one source.
>
> Sounds good to me, but always keep in mind that visibly well mapped
> areas are usually cared for by people living there and they may have
> _extensive_ local knowledge, which may be more up to date than the
> armchair-mapping data available to you.
>
>
> > Please let me know if there are subjects that I missed to cover.
>
> How do you use, or plan to use the OSM data? Knowing your usage helps
> understanding what is important for you.
>
>
> Have a nice day,
> Peter
>
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