<div dir="auto"><div>I don't think that's particularly harmful. I'm not against extending the criteria to published laws, particularly when those laws are documented in an official source.<br><br><div class="gmail_quote"><div dir="ltr">On Wed, Apr 4, 2018, 23:10 <<a href="mailto:osm.tagging@thorsten.engler.id.au">osm.tagging@thorsten.engler.id.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-AU" link="blue" vlink="purple"><div class="m_4715304138645199996WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Actually, it’s not just relatively harmless “noise”. Because such no_u_turn restrictions are indistinguishable from e.g. this one: <a href="https://www.openstreetmap.org/relation/8182004" target="_blank" rel="noreferrer">https://www.openstreetmap.org/relation/8182004</a> (which I just created), that actually has a sign “on the ground”: <a href="https://www.google.com.au/maps/@-27.2141567,153.0014115,3a,75y,100.42h,82.68t/data=!3m6!1e1!3m4!1s-vnw60jwbq7XyR_-zZfreg!2e0!7i13312!8i6656" target="_blank" rel="noreferrer">https://www.google.com.au/maps/@-27.2141567,153.0014115,3a,75y,100.42h,82.68t/data=!3m6!1e1!3m4!1s-vnw60jwbq7XyR_-zZfreg!2e0!7i13312!8i6656</a> (excuse the streetview link, don’t have another photo of it right now, but I’m driving past it almost every day and am well aware of it).<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><u></u> <u></u></span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Tod Fitch <<a href="mailto:tod@fitchdesign.com" target="_blank" rel="noreferrer">tod@fitchdesign.com</a>> <br><b>Sent:</b> Thursday, 5 April 2018 09:50<br><b>To:</b> Tag discussion, strategy and related tools <<a href="mailto:tagging@openstreetmap.org" target="_blank" rel="noreferrer">tagging@openstreetmap.org</a>><br><b>Subject:</b> Re: [Tagging] no_u_turn restrictions for every entry/exit into a roundabout when the way is split because of physical separation?<u></u><u></u></span></p></div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Seems like tagging “noise” to me. I’d expect a router to use the roundabout itself because exiting, making a U turn and then re-entering the roundabout will be longer and thus slower. Since the no U turn relations are there to make routing work and a reasonable router won’t need them, I’d say they are “noise”. If I were to go in to fix something on that intersection, I’d probably remove the no U turn restriction(s). But I don’t think I’d go out of my way to find them.<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Cheers!<u></u><u></u></p></div><div><p class="MsoNormal"><u></u> <u></u></p><div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><p class="MsoNormal">On Apr 4, 2018, at 4:36 PM, <a href="mailto:osm.tagging@thorsten.engler.id.au" target="_blank" rel="noreferrer">osm.tagging@thorsten.engler.id.au</a> wrote:<u></u><u></u></p></div><p class="MsoNormal"><u></u> <u></u></p><div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">I’ve noticed that someone from the Microsoft Open Map team is very busy adding turn restrictions all over the place (<span class="m_4715304138645199996apple-converted-space"> </span><a href="https://www.openstreetmap.org/user/shawat94/" target="_blank" rel="noreferrer"><span style="color:#954f72">https://www.openstreetmap.org/user/shawat94/</span></a><span class="m_4715304138645199996apple-converted-space"> </span>).<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">In my local neighbourhood, I noticed that he added no_u_turn restrictions to all the nodes where a road into in/out of a roundabout is splitting (because of physical separation). Which basically amounts to 4 no_u_turn restrictions for every single roundabout.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">e.g. here:<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><a href="https://www.openstreetmap.org/changeset/57747093" target="_blank" rel="noreferrer"><span style="color:#954f72">https://www.openstreetmap.org/changeset/57747093</span></a><u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><a href="https://www.openstreetmap.org/changeset/57674063" target="_blank" rel="noreferrer"><span style="color:#954f72">https://www.openstreetmap.org/changeset/57674063</span></a><u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">There is no actual no_u_turn sign in any of these locations, it’s just (mostly) physically a bad idea to attempt a u-turn here.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Just a few weeks ago I discussed exactly this in #osm and the conclusion was that it was neither necessary nor desirable to do this.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">I made a comment about that to the first of the two changesets linked above, but haven’t gotten a reply.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">So, what is the general opinion about this here? Should these turn restrictions be created or not?<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Cheers,<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thorsten<u></u><u></u></span></p></div><p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif">_______________________________________________<br>Tagging mailing list<br></span><a href="mailto:Tagging@openstreetmap.org" target="_blank" rel="noreferrer"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#954f72">Tagging@openstreetmap.org</span></a><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif"><br></span><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank" rel="noreferrer"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#954f72">https://lists.openstreetmap.org/listinfo/tagging</span></a><u></u><u></u></p></div></blockquote></div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div>_______________________________________________<br>
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