[OSM-talk] [Talk-us] Am I mapping this wrong, or should the router be fixed for this?

Richard ricoz.osm at gmail.com
Thu Jul 30 19:26:01 UTC 2015

On Thu, Jul 30, 2015 at 08:52:57AM -0400, Greg Troxel wrote:

> The issue of on-ramps/off-ramps tagged as *_link has been a particular
> discussion focus.  The notion you expressed that these don't have actual
> posted limits, just sometimes yellow signs is indeed shared by most in
> the discussions.  And we generally agree that the right speed to use for
> them is more or less half the speed of the larger road from which the
> links go to/from.  Perhaps half the speed of the actual road, perhaps
> half the speed of a nominal road of that class, and perhaps slower.
> But these are fine details, and the consensus is pretty strong.
> I do not understand why the osmand devleopers don't just implement this
> notion; it seems relatively obviously correct, and people who have
> modified their routing.xml files report reasonable results.

There is
clearly supporting this idea, however the details are probably very country
and situation specific so the concept may be of little help in practice.


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