[mkgmap-dev] RFC: Consider heightmeters for routing

Tue Apr 7 08:44:40 BST 2009

Johann Gail wrote:

> So my idea is, to virutally lengthen the roads by the height distance.
> This is, if a road has 1km and goes straight then it gets an entry of 1
> km in the routing data.. If another road has a length of 1km and a
> height difference of 10m, then it gets a length entry of 1.1km.

Have you thought about changing the road_speed instead of the length? I.e. a
road going up/downhill would get a lower road_speed than a flat one and when
calculating a fastest route the Garmin should prefer the flat one.