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[mkgmap-dev] Problem with turn restriction

From Gerd Petermann gpetermann_muenchen at hotmail.com on Mon Feb 3 08:15:24 GMT 2014

Hi WanMil,

the branch tries harder to avoid that such a small road is removed, 
e.g. in some cases the way is made a bit longer, but 
it still might happen that it is removed. I see a similar problem when this 
short way e.g. a highway=steps.

Anyhow, the branch has another problem with your example,
it seems to remove a way segment from way with name "Should use this way" ,
the one goes from to the south - eastern boundary.
When I add a small forest so that the way is not on a boundary
all looks good, the short way is not removed, and MapSource routes
the way you want it.

So, I will first check where the way segement gets lost.


Date: Sun, 2 Feb 2014 23:08:13 +0100
From: wmgcnfg at web.de
To: mkgmap-dev at lists.mkgmap.org.uk
Subject: [mkgmap-dev] Problem with turn restriction

attached test file shows a problem with turn restrictions defined on 
very short streets that are removed by mkgmap.
When routing from the parking space in the west to the parking space in 
the north the route should go over the oneway in the south. But because 
the turn restriction at the end of street 1 has a very short to-way the 
turn restriction is removed by mkgmap.
@Gerd: do you see any chance to fix that so that the turn restriction is 
not removed? (I have not tested the high precision branch).

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