Martijn van Exel
m at rtijn.org
Tue Nov 20 19:32:19 UTC 2018
Nice to make your virtual acquaintance.
I noticed there was a bit of discussion as to how to snap _link / ramp roads to the main highway.
The Telenav team uses the convention as described on the wiki, snapping to the main road where the physical separation ends or begins. So the way you described it yourself is the ‘right’ way, as endorsed by the wiki. (See https://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway_junction <https://wiki.openstreetmap.org/wiki/Tag:highway=motorway_junction> )
In general, our team follows the conventions as described on the wiki, and if there’s no clear decision, we work with the community to reach one, and edir the wiki afterwards.
I agree fully with your use of destination tags, but according to the wiki they belong on the _link way and not on the junction node, https://wiki.openstreetmap.org/wiki/Key:destination#Where_to_use.3F <https://wiki.openstreetmap.org/wiki/Key:destination#Where_to_use.3F>
Motorway junction nodes should be tagged even if there is no junction number (not sure if those are common / signposted in Australia?) See again https://wiki.openstreetmap.org/wiki/Tag:highway%3Dmotorway_junction <https://wiki.openstreetmap.org/wiki/Tag:highway=motorway_junction> The destination should not go on junction nodes but on the _link road.
I have not used the placement=transition tag myself and am not sure how it is used in applications, but interesting!
I hope OpenStreetCam (and also Mapillary) will continue to be useful. For signposts and speed limits these are pretty much indispensable tools lacking official GIS data that has this info. Telenav created and maintains OpenStreetCam as you may know. I am happy to answer any questions about it that you may have. We are planning to hold a few mapping competitions in the near future for a few cities in Australia, I’ll make an announcement separately when we’re ready to do that. (Early next year I think)
Another tool I’ve found really useful for checking complete / correct tagging of motorways is CheckAutopista: https://wiki.openstreetmap.org/wiki/CheckAutopista <https://wiki.openstreetmap.org/wiki/CheckAutopista> . For M5: http://k1wiosm.github.io/checkautopista2/?id=7985811&lat=-27.5645&lon=152.8959&z=12 <http://k1wiosm.github.io/checkautopista2/?id=7985811&lat=-27.5645&lon=152.8959&z=12>
> On Nov 8, 2018, at 12:06 AM, Joel H. <joelh at disroot.org> wrote:
> Thanks for introducing yourself.
> A little while ago I fixed up the whole M5 motorway (and I believe some of the M3 as well) in Brisbane and wrote a diary post about it. Mostly with what I did.
> I was wondering whether what I did was correct, or if my method has given you any ideas?
> https://www.openstreetmap.org/user/Joel%20Hansen/diary/43896 <https://www.openstreetmap.org/user/Joel%20Hansen/diary/43896>
> On 8/11/18 4:10 am, Martijn van Exel wrote:
>> I’m new on this list. My name is Martijn van Exel. I am Dutch but live in the U.S.A. where I work for Telenav. I already introduced myself on Slack where I talked a bit about Telenav looking at possibly helping improve the map in Australia. I am just not sure if there’s folks here who are not on Slack so I wanted to say hi. We’re not making any improvements yet and we will keep you updated as our plans materialize.
>> We have a page on the OSM wiki that has more about how / what we typically work on in OSM: https://wiki.openstreetmap.org/wiki/Telenav <https://wiki.openstreetmap.org/wiki/Telenav>
>> Please do get in touch with any questions!
>> Happy mapping,
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>> Talk-au at openstreetmap.org <mailto:Talk-au at openstreetmap.org>
>> https://lists.openstreetmap.org/listinfo/talk-au <https://lists.openstreetmap.org/listinfo/talk-au>
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