[mkgmap-dev] Problem routing over very short roads

Thu Jun 4 11:11:17 BST 2009

> okay, that might be the problem. In potlatch I could not discover this.

It's a common mistake. I had some problems myself with these multiple copies of ways. This could help:

http://wiki.openstreetmap.org/wiki/Stammtisch_Hannover_Tipps#Doppelte_Wege_finden (German)

http://wiki.openstreetmap.org/wiki/Potlatch/Keyboard_shortcuts (English, look for '/' key description)

Markus

> I did touch the node however already, deleting and and re-adding it to 
> make sure it's connected, maybe It's now longer than 3.4m. It was just 
> around 3m before.
> I have just uploaded my source data, try your calculation on it, I think 
> it will fail too for you as well.
> 
> http://openmtbmap.x-nation.de/maps/Debug/63660008.osm.gz
> 
> Mark Burton wrote:
> > Just discovered a weirdness in that map.
> >
> > The short segment at the northern end of the bridge is actually two
> > ways (one on top of the other). Using the middle mouse button in josm
> > you can see that. Perhaps, this is the cause of your problems.
> >
> > Cheers,
> >
> > Mark
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> >
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