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, <[email protected]> wrote: > On Sat, Feb 06, 2021 at 09:45:23AM -0800, [email protected] 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It looks like an outdated information in maps according to photo provided 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 [email protected]. > 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osmand/CAHmUbmd5DyS2_4m5BZFheqnHeyd9J4GLushf76V37BRXEO94uw%40mail.gmail.com.
