2nd issue. Basically I don't know, but until the data makes sense we can't expect osmand to make sense of it, so it seems like the first thing to try. I'm not sure I've been clear enough that I think the main issue is that the tagging isn't correctly placed. It needs to extend all the way to the turn. At the moment, I think it would be reasonable for osmand to assume straight on is 'left' and right is 'straight on' because the tagging doesn't get to the left turn. So evaluating the available roads at the point where the turn should be might match up like I've suggested.
First issue: To be honest, based on your (contemporary?) photo of the traffic light and the aerial imagery it seems reasonable to change the tagging and double check for inconsistency later (I'm not sure what would be appropriate if the traffic lights said one thing and paint another - might need to know Polish road rules but might be best to go with the 'right' answer / ask on osm forums). Hope that helps Tom On Sat, 20 Mar 2021, 13:30 damian....@gmail.com, <damian.badur...@gmail.com> wrote: > Sorry for late response. > > First issue: > I found that imagery from: Geoportal 2: high resolution confirms that the > most left lane allows to only turn left. I don't know how old is the > imagery from Geoportal 2, so to be sure I will take photo of this > intersection and fix it. > I attached the screenshot from Geoportal from osm web editor. > > Second issue: > Tom, you assume that fixing the first issue probably will fix the second > issue? > Ok, I will check it after fixing the first problem. > > Next week I will get photos of this intersection and provide them to be > 100% sure that there is a bug in Osm data. > > The Geoportal 2 imaginery is available in web editor of osm. > > > niedziela, 7 lutego 2021 o 14:50:51 UTC+1 tomcroc...@gmail.com napisał(a): > >> I agree Xavier. In this case the photo has a left arrow traffic light in >> the left hand lane. >> >> On Sat, 6 Feb 2021, 21:39 'Xavier' via OsmAnd, <osm...@googlegroups.com> >> wrote: >> >>> Somehow the photo is no longer attached to the messages I have. >>> >>> But only a left arrow on the left lane would say that the current >>> "through;left" is possibly incorrect and the suggested change to simply >>> "left" is correct per the markings on the ground. >>> >>> In any case, the correct tagging in OSM is that which will correctly >>> represent what is actually marked on the intersection (in combination >>> with what those marks mean in Poland). If the tagging is correct per >>> the markings, and OSMAnd still gives bad directions, then the issue >>> becomes one for the OSMAnd devs to investigate. >>> >>> On Sat, Feb 06, 2021 at 07:05:56PM +0000, Tom Crocker wrote: >>> >Xavier, a photo of the traffic lights was provided showing a left arrow >>> and >>> >two straight on arrows, and it's okay to use traffic lights, the only >>> >questions would be whether there are additional lane markings to justify >>> >tagging before the traffic lights, and the meaning of those traffic >>> lights >>> >in Poland. >>> > >>> >On Sat, 6 Feb 2021, 18:25 'Xavier' via OsmAnd, <osm...@googlegroups.com >>> > >>> >wrote: >>> > >>> >> On Sat, Feb 06, 2021 at 09:45:23AM -0800, damian....@gmail.com wrote: >>> >> > >>> >> >Hello, >>> >> >I noticed that this way: https://www.openstreetmap.org/way/342107973 >>> has >>> >> >such property >>> >> >``` >>> >> >turn:lanes=through;left|through|through >>> >> >``` >>> >> >It looks like an outdated information in maps according to photo >>> provided >>> >> >by me. >>> >> >>> >> None of the available satelitte imagery in JOSM is clear enough for me >>> >> to offer advice on what /should/ likely be marked there. >>> >> >>> >> The OpenStreetMap Wiki page that defines the contents of the >>> turn:lanes >>> >> key is here: https://wiki.openstreetmap.org/wiki/Key:turn:lanes >>> >> >>> >> You may wish to refer to the definitions as you decide what you >>> believe >>> >> should be correct. Do note that OpenStreetMap has a *strict* rule of >>> >> "do not map for the renderer" (which also in large part applies to >>> "the >>> >> router" as well). >>> >> >>> >> I.e., OpenStreetMap (OSM) desires their map data to accurately >>> reflect the >>> >> *on the ground* condition of the road in that intersection. If a map >>> >> renderer, or a route router, produces incorrect data, but the master >>> >> map data is correct per OSM's definitions, then OSM considers that a >>> >> bug in the render or routing engine, not a data problem for OSM. >>> >> >>> >> For the above key (turn:lanes=through;left|through|through) the >>> >> "through;left" tag says that the left most lane (looking in the >>> >> direction in which the OSM way points) is labeled with a lane marking >>> >> arrow that shows both "straight through" travel, and "left turn" >>> >> travel. I.e., this image from the OSM Wiki page I reference above: >>> >> >>> >> >>> https://wiki.openstreetmap.org/w/images/thumb/9/95/Turn-left-through.png/50px-Turn-left-through.png >>> >> >>> >> >>> >> >So OsmAnd provided correct micro instruction. >>> >> > >>> >> >So the correct property should be: >>> >> >``` >>> >> >turn:lanes=left|through|through >>> >> >``` >>> >> >If somebody confirm it I will fix it. >>> >> >>> >> This OSM data will indicate that the left most lane is marked with an >>> >> arrow of a left turn only (no straight through travel) I.e., an arrow >>> >> of this type from the OSM Wiki page: >>> >> >>> >> >>> https://wiki.openstreetmap.org/w/images/thumb/4/4a/Richtungspfeil_Links.jpg/50px-Richtungspfeil_Links.jpg >>> >> >>> >> The correct choice for OSM depends upon how the lane is marked/signed >>> >> on the ground in this intersection. As none of the satellite images >>> >> in JOSM are good enough for me to see any lane markings, I cannot >>> >> suggesst anything based on the satellite images. >>> >> >>> >> If you travel through this intersection, then the next time through, >>> >> make note of how the lanes are marked, and then verify the OSM >>> tagging, >>> >> using the Wiki page as a reference, correctly represents the markings >>> >> on the ground (i.e., painted on the lanes or signed on signage). >>> >> >>> >> If OSM's tags differ from the signage -- then correcting OSM to match >>> >> the current on the ground signage is proper. >>> >> >>> >> However, if OSM's tags match exactly the signage -- then modifying >>> >> OSM's tags would be a violation of OSM's rules. >>> >> >>> >> > >>> >> > >>> >> >This way https://www.openstreetmap.org/way/246174080 has such >>> property: >>> >> >``` >>> >> >turn:lanes=left|through|through;right >>> >> >``` >>> >> >>> >> through;right means a sign/painted arrow of this form: >>> >> >>> >> >>> https://wiki.openstreetmap.org/w/images/thumb/d/d4/Turn-through-right.png/50px-Turn-through-right.png >>> >> >>> >> And whether that is correct is again not something I can offer an >>> >> opinion on given the low quality of the JOSM satellite images in this >>> >> area. >>> >> >>> >> -- >>> >> You received this message because you are subscribed to the Google >>> Groups >>> >> "OsmAnd" group. >>> >> To unsubscribe from this group and stop receiving emails from it, >>> send an >>> >> email to osmand+un...@googlegroups.com. >>> >> To view this discussion on the web visit >>> >> >>> https://groups.google.com/d/msgid/osmand/20210206182545.GQ2001%40d820.dp100.com >>> >> . >>> >> >>> > >>> >-- >>> >You received this message because you are subscribed to the Google >>> Groups "OsmAnd" group. >>> >To unsubscribe from this group and stop receiving emails from it, send >>> an email to osmand+un...@googlegroups.com. >>> >To view this discussion on the web visit >>> https://groups.google.com/d/msgid/osmand/CAHmUbmd5DyS2_4m5BZFheqnHeyd9J4GLushf76V37BRXEO94uw%40mail.gmail.com >>> . >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "OsmAnd" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to osmand+un...@googlegroups.com. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/osmand/20210206213908.GR2001%40d820.dp100.com >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "OsmAnd" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to osmand+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/osmand/f4f48e38-36d3-4b82-8f18-66b5905ec340n%40googlegroups.com > <https://groups.google.com/d/msgid/osmand/f4f48e38-36d3-4b82-8f18-66b5905ec340n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "OsmAnd" group. 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