[HOT] Trunks in Highway Tag Africa

Ralf Bernhardt raabee at gmx.de
Mon Jan 25 18:16:53 UTC 2021


could be also interesting:

https://wiki.openstreetmap.org/wiki/SADC_Regional_Trunk_Road_Network

Am 25.01.21 um 18:38 schrieb Pierre Béland via HOT:
> Hi Rafael,
>
> The best yes would be that we add a note adding exception for major
> road networks such as the Inter-African highway project sponsored by
> UN, Inter-African Bank and other regional partners. See
> https://wiki.openstreetmap.org/wiki/WikiProject_Trans-African_Highway
> <https://wiki.openstreetmap.org/wiki/WikiProject_Trans-African_Highway>
> that describes the OSM relations to describe this network.
>
> Some infos also in
> https://en.wikipedia.org/wiki/Trans-African_Highway_network
> <https://en.wikipedia.org/wiki/Trans-African_Highway_network>, where
> it says that  this is an infrastructure program across Africa and
> there are not necessarily signs on the roads.
>
> Pierre
>
>
>
> Le lundi 25 janvier 2021 11 h 34 min 30 s UTC−5, Rafael Avila Coya
> <ravilacoya at gmail.com> a écrit :
>
>
> Hi, Pierre:
>
> So we should add that to the wikis, right? Otherwise users will be
> confused as when to use the trunk or primary values.
>
> Cheers,
>
> Rafael.
>
> O 25/01/21 ás 16:40, Pierre Béland via HOT escribiu:
> > We have created the Highway tag Africa wiki page in 2013 to reflect the
> > fact that road structures and conditions vary in many countries and the
> > official Highway tag do not reflect this. Many discussions since 2013.
> > It was proposed to use the Trunk classification to reflect
> > inter-regional roads, this independantly of then road structure.  This
> > tagging schema is now quite generally used in countries / areas where
> > infhastructures differ from the «northern countries» standard.
> >
> > See this truck stuck on a North-Kivu road at the rainy season.
> > https://twitter.com/pierzen/status/1163096946300653570
> <https://twitter.com/pierzen/status/1163096946300653570>
> >
> > Even if the infrastructure is inadequate, this is stil a vital road
> link
> > in the region.
> > Pierre
> >
> >
> > Le lundi 25 janvier 2021 08 h 59 min 13 s UTC−5, Fernando Trebien
> > <fernando.trebien at gmail.com <mailto:fernando.trebien at gmail.com>> a
> écrit :
> >
> >
> > 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
> <https://wiki.openstreetmap.org/wiki/Highway_Tag_Africa>
> > [2]
> https://wiki.openstreetmap.org/wiki/East_Africa_Tagging_Guidelines
> <https://wiki.openstreetmap.org/wiki/East_Africa_Tagging_Guidelines>
> > [3]
> >
> https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access_restrictions
> <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
> <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
> <https://www.openstreetmap.org/?mlat=58.53671&mlon=125.38264>
> > [6] https://www.openstreetmap.org/?mlat=64.57219&mlon=142.27424
> <https://www.openstreetmap.org/?mlat=64.57219&mlon=142.27424>
> > [7] https://www.openstreetmap.org/?mlat=-3.68545&mlon=-53.56702
> <https://www.openstreetmap.org/?mlat=-3.68545&mlon=-53.56702>
> > [8] https://www.openstreetmap.org/?mlat=64.78732&mlon=-14.44138
> <https://www.openstreetmap.org/?mlat=64.78732&mlon=-14.44138>
> >
> > --
> > Fernando Trebien
> >
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