On Sun, Mar 30, 2014 at 02:05:08PM +0200, Gerd Petermann wrote:
If I get that right the via way is a oneway going into the wrong
direction.
Oh, you are of course right. I will move the restriction to the proper
ways.
yes, I think mkgmap should try to detect unclear cases and ignore those
restrictions.
IMO, mkgmap should not silently ignore anything. We should generate a
warning too.
BTW, one more case that I do not know if you are handling yet: Issue a
warning if the result would not be any different if the turn restriction
did not exist. This is not only about oneway direction. For example, if
there is only_straight_on on a road with no junction, a warning should
be issued.
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 think that no_u_turn restrictions are somewhat a matter of a local
convention. In the US it is common to forbid left turns and U-turns
except in a few junctions. In Finland, that practice only exists on some
major through-routes in cities.
Marko
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