[mkgmap-dev] max-speed and arbitrary values

Thu Jun 4 15:33:11 BST 2009

I think I can confirm what said here. My nuvi 255 seems to learn the speed I drive on each road (with impact on routing decision next time I drive the same area).

Also I confirm that many roads has a max speed info that is shown on the screen while I drive the road.

--- Gio 4/6/09, Wolfgang v. Hansen <wvhansen at fom.fgan.de> ha scritto:

> Da: Wolfgang v. Hansen <wvhansen at fom.fgan.de>
> Oggetto: Re: [mkgmap-dev] max-speed and arbitrary values
> A: "Development list for mkgmap" <mkgmap-dev at lists.mkgmap.org.uk>
> Data: Giovedì 4 giugno 2009, 16:24
> On Wed, 3 Jun 2009, Thilo Hannemann
> wrote:
> 
> > Somebody mentioned also that the GPS units will
> "learn" the speed you are actually driving and use that for
> their calculation. If this is speculation or based on facts
> I don't know. At least with my Oregon 300 I doubt it: As I
> use it all the time with my maps I'm cycling always in the
> car mode. So far the ETAs are still very wrong. If the GPS
> would learn the speed they should become more realistic over
> time.
> 
> At least the car navs (StreetPilot, nüvi) do learn your
> speed profile -- don't know about the outdoor navs though.
> These are probably the same set of speeds that you can set
> in MapSource.
> 
> In addition, there should also be a slot for the max. speed
> for each road in the maps. Newer devices (I don't have one
> of them though) along with current maps tell you when you
> are driving too fast. This is a feature that had been
> introduced by Garmin/Navteq quite recently.
> 
> 
> -Wolfgang
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