logo separator

[mkgmap-dev] Road speed through urban areas

From Gerd Petermann gpetermann_muenchen at hotmail.com on Thu Jul 9 11:16:25 BST 2020

Hi all,

reg. maxspeed:practical  I think we should not use disputed tags in preference to well established tags in the default style.
reg. maxspeed:advisory: I see no problem with that.

What's the purpose of this rule? Is it meant to improve travel time estimation?
highway=motorway & maxspeed!=* & mkgmap:road-speed-max!=* & mkgmap:country!=DEU {set mkgmap:road-speed-max=6}


Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
Gesendet: Donnerstag, 9. Juli 2020 09:51
An: mkgmap development
Betreff: Re: [mkgmap-dev] Road speed through urban areas

Hi Greg & Gerd

Yes, this is what I mean, more or less. I don't know what the OSM
tagging policy is on applying maxspeed tags to every road, but mkgmap
applies its own limits based on highway type to everything except
motorway, and this patch now does motorways as well. There are a couple
of other countries that don't have max speed limits on some roads and I
haven't bothered with them explicitly, but if the road is tagged with
maxspeed/:practical/:advisory that is above 120kmh than it won't be

patch attached.


On Wed, 2020-07-08 at 20:14 -0400, Greg Troxel wrote:
> Ticker Berkin <rwb-mkgmap at jagit.co.uk> writes:
> > It also needs something at the end to limit motorways for most
> > countries:
> >
> > highway=motorway & mkgmap:road-speed-max!=* & mkgmap:country!=DEU
> >     {set mkgmap:road-speed-max=6}
> Do you mean
>   Except Germany, most/all countries have speed limits on motorways,
> but
>   some of them don't have explicit tags in OSM.  While this is a bug
> in
>   the data and should be fixed, mkgmap ought to do something sensible
> more or less?

More information about the mkgmap-dev mailing list