[mkgmap-dev] no_u_turn

Sun Oct 4 18:54:20 BST 2009

most signed u_turn restrictions should be created as no_left_turn or
right_turn in countries driving on the other side.
reason is that often we have 2 parallel ways with oneway direction and the
it's not allowed to turn from one to the crossing road and turn again to the
opposite direction other way.

only if a way is a single way with a single node on the crossing a no_u_turn
restriction is correct using this single node as a via point

Very tricky to understand and map. but it's a osm problem more than mkgmap

--
apo

On Sun, Oct 4, 2009 at 10:15 AM, Paul <news at pointdee.co.uk> wrote:

> When the turn restrictions were added was the no_u_turn restriction
> implemented as I have recently been told by my 605 to make a U turn
> where I have specifically added a no_u_turn restriction?
>
> I feel it's only fair to mention that some of these no_u_turn
> restrictions are flagged as invalid by JOSM but that is because it
> (wrongly in my opinion) seems to take the direction of the via way into
> account.
>
> Cheers
>
> Paul
>
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