[Tagging] [Talk-us] Trunk VS primary

Mateusz Konieczny matkoniecz at tutanota.com
Sat Dec 21 12:17:42 UTC 2019

21 Dec 2019, 12:56 by ajt1047 at gmail.com:

> On 21/12/2019 11:40, Mateusz Konieczny      wrote:
>> 21 Dec 2019, 12:00 by >> wolfgang at lyxys.ka.sub.org>> :
>>> I suggest to keep the road classification consistent at          least within
>>> a country and try to solve the problem of roads in low-zoom          maps at
>>> the rendering level, by modifying the list of displayed          road classes
>>> until a target density of displayed roads is reached. That          might
>>> become easier to do when we move to vector tiles.
>> Seems not doable with OSM data - this
>> would require far more road classes
>> than we use.
>> lane and surface data is also almost
>> certainly not helpful here even with full
>> coverage
> Renderers can certainly use tags other than "highway" when      deciding what road class to render things as
I know, that is why I mentioned 
lane and surface tags
> Specifically, if a tertiary is particular narrow it gets rendered      as unclassified, and if an unclassified or residential is a gravel      track it gets rendered as a track with public access.
OSM Carto is using access tag in
this way. It works well for zoomed in
view but gets more problematic for
country level views or global ones.
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