[mkgmap-dev] Estrange detours

Fri Jan 6 13:44:53 GMT 2017

Hi,

I have converted all trunks and primary into secondary roads and it 
didn't solve problem, so it is rather not connected to Garmin road type 
0x02. Still rules for trunks in Spain doesn't fit well into mkgmap 
conversion, there could be other problems, like for example weird 
navigation messages.

I have found another example for weird routing, where route turns form 
primary road into longer detour on service road, see picture angle2. In 
my case wrong routing is for car and motorcycle but  goes correctly for 
truck. If I change angle for service road like on picture angle2, 
routing is correct.

Attached is OSM data extract and test route for BaseCamp.

-- 
Best regards,
Andrzej

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