[OSM-talk] Ways divided by paint?

Marc Gemis marc.gemis at gmail.com
Thu Jul 4 04:58:50 UTC 2019

I agree that in this case I would tolerate it, but is it still allowed
to turn from East Mineral avenue to the  North-South, unclassified
If not, one should add turn restrictions.



On Wed, Jul 3, 2019 at 11:11 PM Tom Pfeifer <t.pfeifer at computer.org> wrote:
> On 03.07.2019 22:03, Jack Armstrong Dancer--- via talk wrote:
> > I've always had the impression we should not create separate traffic lanes unless "traffic flows are
> > physically separated by a barrier (e.g., grass, concrete, steel), which prevents movements between
> > said flows."
> Yes, I agree in general. Nearly all cases can be modelled with turn:lanes (and maybe change:lanes).
> > https://www.openstreetmap.org/edit?changeset=70997250#map=20/39.57354/-104.98496
> This case -- and the aerial image is necessary to understand it -- would be one of the few
> exceptions where I would tolerate the current mapping of a separate lane for the left turn.
> Otherwise a navigation engine would not be able to create the appropriate turn instruction at the
> point where the lane forks off. A much more complicated data model would be necessary.
> tom
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