On Wed, Apr 06, 2011 at 08:37:37PM +0200, Markus Hetzmannseder wrote:
>In this situation my Garmin Dakota 20 is routing me up the oneway part 
>several roads around the block to get to the target just down the 
>street.

Could it be that we are incorrectly merging the oneway street with the 
non-oneway street, making the non-oneway section oneway? What are the 
criteria for merging ways? I think that the merging should be blocked if 
any of the routing attributes differ: oneway, toll, mkgmap:unpaved, 
access/motorcar/bicycle/foot, etc.

In http://www.openstreetmap.org/browse/node/101581030 the node is not 
part of a turn restriction relation. If it were, that would be a further 
reason not to merge the ways, I guess.

        Marko
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