I regularly get QA messages about this when I use the "ImproveOSM" in iD - just about every roundabout near me has at least one.
I've been marking them as false positives as to my mind it's obvious that you wouldn't U-turn there (but equally, it would be legal to do so). But the points about machine routing make me think maybe I shouldn't be closing these off? Any thoughts? Eg, at node https://www.openstreetmap.org/node/26187838 Missing Turn Restriction Description 0 of 326 recorded trips (travelling west) make a turn from Bretton Gate to Bretton Gate at this node. There may be a missing "no_right_turn" restriction. On Sat, 3 Oct 2020 at 20:01, James Derrick <[email protected]> wrote: > Hi Dave, > > Thanks for answering my original router logic question! :-) > > > On 03/10/2020 17:52, Dave F via Talk-GB wrote: > > I've just tested in JOSM. It flagged no such validation warning. > > https://www.openstreetmap.org/way/3403352 > > Interesting - you're right, I couldn't easily reproduce the 'Sharp > Angle' validation warning in the latest JOSM either. > > After hunting out the code, the warning currently isn't triggered unless > the segment leading to a <45deg angle is <10m: > > https://josm.openstreetmap.de/browser/josm/trunk/src/org/openstreetmap/josm/data/validation/tests/SharpAngles.java > > Looking at a couple of local roundabouts via imagery, a flare this short > verges on a single node highway=mini_roundabout, unless lots of extra > nodes have been added to the flare to give a curved approach. > > After over a dozen years of using JOSM, it still surprises me with extra > features. > > Happy Mapping, > > > James > -- > James Derrick > [email protected], Cramlington, England > I wouldn't be a volunteer if you paid me... > https://www.openstreetmap.org/user/James%20Derrick > > > _______________________________________________ > Talk-GB mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-gb >
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