Personally, for shallow slip lanes like this, I map with the angle of the island and do not make curves where it joins the new road.
On Sat, 5 Mar 2022 at 10:28, Graeme Fitzpatrick <[email protected]> wrote: > Continuing on with that line of thought & looking at the example mentioned > in the other thread: > https://www.openstreetmap.org/edit#map=20/-31.99548/115.99338 > > How should that left turn from Tonkin Hwy to Hale Rd be mapped? > > As a relatively smooth curve the way it is now, or as an abrupt 45° angle > at the physical traffic island eg ___/_|__ ? > > Thanks > > Graeme > > > On Sat, 5 Mar 2022 at 08:58, Graeme Fitzpatrick <[email protected]> > wrote: > >> Looking back at the notes from the previous discussion & spotted this >> comment: >> >> "only split the way at the point where you can no longer physically change >> lanes." >> >> Physically, or legally? >> >> Looking at the Princes Hwy/William Rd >> <https://www.openstreetmap.org/way/779286918/history> example, yes, >> there's only a painted line & island that you can physically cross, but >> that would mean doing an illegal lane change. >> >> Are we supposed to worry about that, or not? >> >> Thanks >> >> Graeme >> >> >> On Fri, 4 Mar 2022 at 19:57, Luke Stewart <[email protected]> >> wrote: >> >>> (forgot to x-post to talk-au) >>> >>> Hi, >>> >>> The standard rule and the way that I map is to only begin a new way if >>> there is some form a physical separation, so extra turning ways which can >>> be completed with a box but are modelled as curves aren't following this >>> rule (same goes for ways that start when lanes start rather than branching >>> off where the physical separation begins). >>> >>> Whilst there are arguments like "it looks better" or "helps with >>> routing/direction finding/navigation", these are not reasons to break osm, >>> rather to improve software. >>> >>> In the case of the Princes Hwy/William Rd >>> <https://www.openstreetmap.org/way/779286918/history> intersection, the >>> residential road should be drawn straight through the intersection, with >>> the right turn lane specified with keys such as turn:lanes and change:lanes. >>> >>> As for how to resolve with this user, probably affirming a regional >>> consensus would be most convincing. >>> >>> Cheers, >>> Luke >>> _______________________________________________ >>> Talk-au mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/talk-au >>> >>
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