> Date: Tue, 1 Apr 2014 16:10:52 +0300
> From: marko.makela@iki.fi
> To: mkgmap-dev@lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Turn restriction angle checks
>
> On Sun, Mar 30, 2014 at 02:34:07PM +0200, Gerd Petermann wrote:
> >>BTW, I accidentally loaded a relation somewhere in Russia and
> >>downloaded the surroundings. There were lots of no_u_turn on every
> >>crossing of a major road. That kind of micro-mapping does not exist
> >>over here; I guess that mappers expect people to apply common sense
> >>and not make a u-turn as soon as the navigator suggests it, no matter
> >>what.
>
> I found an example of this in Finland. IMO, these relations should
> simply be ignored, maybe emitting a NOTE or INFO (not WARNING):
>
> 2014/04/01 08:03:24 SEVERE (RoadNetwork): 63240002.osm.pbf: Turn
> restriction http://www.openstreetmap.org/browse/relation/1785864 (at
> http://www.openstreetmap.org/?mlat=60.224055&mlon=24.995477&zoom=17)
> check special case from = to arc
>
> Normally the navigator should not generate routes where you do a U-turn
> like this. Even if it did, the driver should know to make the U-turn at
> the next convenient place where it is both practical and not forbidden.
>
> Marko
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