[HOT] Trunks in Highway Tag Africa

[Vao Matua]

Fernando,

Are there some specific locations where you feel the highway tagging is not
correct?
In Tanzania over the last 4 years there has been a great deal of work to
get the transportation network to an appropriate tagging scheme including
trunk roads to match the Tanzania Ministry of Transport designations.
Hopefully this effort won't be used to reverse the progress made in east
Africa.

Regards,

Emmor

On Mon, Jan 25, 2021 at 5:58 AM Fernando Trebien <fernando.trebien at gmail.com>
wrote:

> Hi!
>
> The current definition of highway=trunk for Africa [1] and East Africa
> [2] appears to reflect mapping practices in some highly developed
> countries that are not common in most developing countries. The two
> points that I find very restrictive:
>
> 1. Restricted to motorised vehicles: not mandatory even in many
> developed countries [3]
> 2. Motorway-like layout with multiple lanes: does this include single
> carriageways with 2 lanes, 1 lane per direction?
>
> In the English wiki, the definition of highway=trunk is less
> restrictive, and so are many of its translations. In addition, many
> highways mapped as highway=trunk in Africa (and East Africa) do not
> meet these requirements and apparently did not at the time [4] of the
> edit.
>
> Sometimes trunk roads may not even be paved. Examples include the
> A-360 [5] and P-504 [6] routes in the Russian Far East and the
> Trans-Amazonian Highway (BR-230) [7] in the North Region of Brazil.
> Iceland's Ring Road [8] was also unpaved until recently in some parts.
>
> So, I would like to propose changing the definition in [1] to
> something like what the English wiki says: "The most important roads
> in a country's system that are not motorways." Possibly adding that
> these are generally the main routes between very large cities. What do
> you think?
>
> [1] https://wiki.openstreetmap.org/wiki/Highway_Tag_Africa
> [2] https://wiki.openstreetmap.org/wiki/East_Africa_Tagging_Guidelines
> [3]
> https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access_restrictions
> [4]
> https://wiki.openstreetmap.org/w/index.php?title=Highway_Tag_Africa&type=revision&diff=1337238&oldid=1337236
> [5] https://www.openstreetmap.org/?mlat=58.53671&mlon=125.38264
> [6] https://www.openstreetmap.org/?mlat=64.57219&mlon=142.27424
> [7] https://www.openstreetmap.org/?mlat=-3.68545&mlon=-53.56702
> [8] https://www.openstreetmap.org/?mlat=64.78732&mlon=-14.44138
>
> --
> Fernando Trebien
>
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