On Wed, Aug 26, 2009 at 04:37:37PM +0100, MarkS wrote: > Here is a possible patch for maxspeed. > > Around here lots of roads have been tagged with their speed limit (which > is 60mph). However, these are unclassified roads and you are unlikely to > get above 40mph. At the moment the default behaviour of mkgmap is set > overide the style file for these roads and set the road class > appropriate to 60mph, which is too fast. > > I could turn on ignore-maxspeeds which would fix these roads but in turn > that would result in the trunk roads in town getting too high a speed. > > The patch attempts to overcome this by offerring an extra option for > ignore-maxspeed, so the options become
Wouldnt it make sense to make it possible to apply factors based on road
class to the maxspeed setting?
e.g unclassified -> maxspeed*0.6
tertiary -> maxspeed*0.8
OTOH this should all be the responsibility of the routing engine
and at the moment as i understand we abuse the maxspeed (OSM) to set
an "average speed" in the Garmin dataset - not something like a
speed limit which is obviously broken anyway and just some
idea to make use of the maxspeed ...
Flo
--
Florian Lohoff [email protected]
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