[Talk-us] US Trunk road tagging

[Mateusz Konieczny]

May 5, 2021, 17:22 by baloo at ursamundi.org:

> On Tue, May 4, 2021 at 10:31 PM Bradley White <theangrytomato at gmail.com> wrote:
>
>> Here are some counterpoints as to why I'm not completely on board with
>> "importance" tagging yet:
>>
>> The issue of floating "trunk" segments on the main slippy map is
>> awful, agreed.
>>
>
> Aesthetics aside, such floating chunks does reflect the ground truth.
> It's not OSM's fault that highway departments, especially in rural
> parts of the country, prefer grand islands of expressway to nowhere.
> We just document it.
>
It depends whether highway=* tag is supposed to describe road
function/importance or be summary of physical characteristics.

AFAIK highway=* is at least supposed to be description of road
function/importance - so generally should not change between
settlements on every change in road quality
https://www.openstreetmap.org/?mlat=34.2595&mlon=-95.8543#map=10/34.2595/-95.8543 <https://www.openstreetmap.org/?mlat=34.2595&mlon=-95.8543#map=10/34.2595/-95.8543&layers=N>
(with possible exception for cases where only part of road are
of highway=motorway quality)

Note that there are lanes=*, surface=*, shoulder=* etc allowing
to describe exact physical characteristics already.

This tag are typically deliberately not used in rendering of national/global
road networks and it is fully intentional.
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