[mkgmap-dev] roundabouts

Sun Feb 12 12:56:32 GMT 2017

Hi Gerd,

IMO you won't get good routing for cars, if you set all roundabouts to 
class 0. My understanding is, that roads with road_class 4 and 3 should 
create a proper, continuous network. If you break network at 
roundabouts, long distance routing will suffer.

I doubt you will get a nice rendering with all cases. Probably a 
roundabout will be still visible below road type 0x06. But if you are 
satisfied with rendering, I suggest to use pairs: roundabout with proper 
road_class/road_speed and non-routable line in range 0x108xx, these 
looks like standard roads: 0x10800 == 0x01, 0x10801 == 0x02 and so on.

-- 
Best regards,
Andrzej