On 6/08/2012 0:25, Bernhard Hiller wrote:
The ramps connect a secondary to a trunk. Hence, I'd tag them as trunk_link, not secondary_link. That could result in correct routing.
While I agree with that it wouldn't solve the problem if the ramps connected two secondary roads.
Since the ramps are very long in that special case, setting a speed limit explicitly might also help.
It might work, but doesn't address the fundamental problem that the ramps' default speed limit is lower than that of a dirt track.
Maybe the Garmin device did not reognize that U-turn correctly, or the
Mapsource routes the same.
"penalty" for a U-turn is to small. Which tags are required that a U-turn is recognized as a U-turn?
I'm afraid I haven't been able to find an answer to that question. I suspect that it doesn't work on dual carriageways with non-NT maps. Ramps created from trunk_link have a higher speed limit and I think that the other _link roads should also have them, for the same reasons. Kind regards, Peter.