Hi, As far as I know the map only stores the road_speed and road_class (not the speed in km/h: association road_speed vs. speed is demanded to Garmin devices or mapsource). The turn time penalties I tested was depending on the road_speed (but I presume the penalty is proportional to the speed). Anyway it was not related to the road_class. Do you have other results about those turn time penalties? for bikers, just put only road_speed=0 or 1 to all roads (maybe road_speed 2 for downward roads...) Ciao, Marco. --- Mer 3/6/09, Felix Hartmann <extremecarver@googlemail.com> ha scritto:

Da: Felix Hartmann <extremecarver@googlemail.com> Oggetto: [mkgmap-dev] max-speed and arbitrary values A: "Development list for mkgmap" <mkgmap-dev@lists.mkgmap.org.uk> Data: Mercoledì 3 giugno 2009, 12:06 Is it possible to encode arbitrary maxspeed values or can we only set in steps of 10km/h?

For example having road  road_speed=7 associated with 35km/h, road road_speed=6 with 27, road_speed=5 with 23, road_speed=4 with 20, road_speed=3 with 17, road_speed=2 with 10 and road_speed=1 with 5km/h. The difference this should make would be enough to only set road_class=2, 1 and 0 and avoid the big time penalties for sharp turns that happen in road_class 4 and 3.

This would be great for bicycle maps.

In Mapsource one can change the speed oneself, I noticed that dividing default speeds by a factor of 3.5 produces pretty good estimation of arrival times for bicylces (when using the car/motorcycle setting, as bicycle produces rubbish routes) but on the GPS this is not possible.

@Thilo, do you understand the code good enough to write a patch for this if possible.? I have problems understanding in which files the maxspeed is handled.

Cheers, Felix

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