On 08.12.2009 16:59, Nakor wrote:
Well I have never seen such a setting where you can exclude roads by type from routing. 0x01-0x13 is routable, and then with limitation 0x1a and 0x1b so how the fuck are you excluding a road type?
On my eTrex Vista I have the option to avoid highways. I was just wondering how this gets determined by the GPS. To make things clear I have attached a screen capture of the routing options. Ah now I see what you mean. That setting is a big mistery of what it does depending on each unit and map.
One would need to run many tests and setup a table to document what (type, road_class, road_speed) in which combination has what effect. Also it does not work over long distances on Garmin maps. Twould be nice know how it really works, so you can go and have a try contructing testmaps and then report back. That particular setting is the one that never interested me due to its reported problems.