[mkgmap-dev] highway=unclassified & area=yes

Mon Sep 14 16:26:14 BST 2020

Hi Bernd

Once you start looking you see all sorts of mapping errors - I've been
finding a lot of roads mapped as long closed ways. What seems like a
common fix to this is to create a correctly joined and tagged linear
way and leave the area untouched.

I don't understand what you mean by creating highway=virtual; if
editing OSM you might just as well create a correct road. If defining
style rules just respect or ignore the highway type in conjunction with
area=yes.

I thought about doing what Mike Baggaley does and dropping all but
pedestrian/service but I felt this might lose some important roads so I
only drop "unclassified" because this seems to be the type chosen for
an arbitary commented area. I think some mappers thought "unclassified"
was not a real road and so wouldn't be used for routing, rather than
the formal OSM definition as a "minor public road".

Ticker

On Mon, 2020-09-14 at 10:37 +0200, Bernd Weigelt wrote:
> Hi
> 
> I have made a test in the region nearby and got lots of ways with
> area=yes
> 
> changed your rule a little bit ;-)
> 
> ... & area=yes {echo '${highway}'}
> 
> 
> Most of this ways didn't have a virtual way between each node across
> the area,
> so they are possibly lost for routing and create lot of islands, when
> deleting
> highway=*
> 
> I think this problem can't be solved with rules, only in the map
> data.
> 
> Maybe creating virtual way (highway=virtual) in the area is a
> solution, then
> the area can be used without routing problems
> 
> Bernd
> 
> Am Sonntag, 13. September 2020, 18:18:40 CEST schrieb Mike Baggaley:
> > In my style I have the following:
> > 
> > (highway=motorway | highway=trunk | highway=primary |
> > highway=secondary |
> > highway=tertiary | highway=motorway_link | highway=trunk_link |
> > highway=primary_link | highway=secondary_link |
> > highway=tertiary_link |
> > highway=residential | highway=unclassified | highway=track |
> > highway=bridleway | highway=cycleway | highway=footway |
> > highway=path) &
> > area=yes {delete highway} # delete unwanted areas
> > 
> > I leave highway=service and highway=pedestrian as these are valid
> > but the
> > others are not.
> 
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