<html><head></head><body>Practical maxspeed is useless as well. A straight wide road may be capable of hosting land speed records, but traffic density is likely to be a far more important factor.<br><br><div class="gmail_quote">On 30 July 2015 19:56:41 CEST, Richard <ricoz.osm@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">On Thu, Jul 30, 2015 at 08:52:57AM -0400, Greg Troxel wrote:<br /><br /><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> The issue of on-ramps/off-ramps tagged as *_link has been a particular<br /> discussion focus. The notion you expressed that these don't have actual<br /> posted limits, just sometimes yellow signs is indeed shared by most in<br /> the discussions. And we generally agree that the right speed to use for<br /> them is more or less half the speed of the larger road from which the<br /> links go to/from. Perhaps half the speed of the actual road, perhaps<br /> half the speed of a nominal road of that class, and perhaps slower.<br /> But these are fine details, and the consensus is pretty strong.<br /></blockquote><br />if there is no hard limit this might help:<br /> <a
href="http://wiki.openstreetmap.org/wiki/Key:maxspeed:practical">http://wiki.openstreetmap.org/wiki/Key:maxspeed:practical</a><br /><br />another thing that could help - routers should add a cost for every<br />lane switch or changing to different road, likewise every implicit or <br />explicit yield which would be implied here. <br />However this has the problem that sometimes what looks as different <br />road in OSM data is a road that was split for some technical reason.<br /><br />Richard<br /><br /><hr /><br />talk mailing list<br />talk@openstreetmap.org<br /><a href="https://lists.openstreetmap.org/listinfo/talk">https://lists.openstreetmap.org/listinfo/talk</a><br /></pre></blockquote></div></body></html>