Hello,
It is strange discussion about the use of another (commercial) map as
source for OSM. Did Michelin license the use of their maps?
On the other side: it is the gouvernement that decides about the road
classification.
For Wallonie the concept of the classification 'La hiérarchisation du
réseau' with RGG Réseau à Grand Gabarit, RESI Réseau Interurbain and RSR
Réseau Sous-Régional exists already 20 years. For the concept see
http://routes.wallonie.be/struct.jsp?chap=3&page=2(1)
For Vlaanderen the general concept of the classification is in
Ruimtelijk Structuurplan Vlaanderen 2011 (2) with Hoofdweg, Primaire Weg
Cat. I & Cat. II, Secundaire Weg and Lokale Weg.
And there is the Brussels region.
The question should be how we can translate those official
classifications to the limited categories of classification we have in
OSM. And that should come in the Wiki. For the moment the
Conventions/Highways in the Wiki is still based on the situation before
1989, when the Belgian roads became a matter of the Regions.
Regards,
Erik
(1) For Wallonie the lists of roads can be found in official
publications as
http://www.ejustice.just.fgov.be/cgi_loi/arch_a1.pl?sql=(text+contains+(%27%27))&rech=1&language=fr&tri=dd+AS+RANK&value=&table_name=loi&F=&cn=1993122263&caller=archive&fromtab=loi&la=F&ver_arch=001
<http://www.ejustice.just.fgov.be/cgi_loi/arch_a1.pl?sql=%28text+contains+%28%27%27%29%29&rech=1&language=fr&tri=dd+AS+RANK&value=&table_name=loi&F=&cn=1993122263&caller=archive&fromtab=loi&la=F&ver_arch=001>
(2) For Vlaanderen see
http://www.vlaanderen.be/nl/publicaties/detail/ruimtelijk-structuurplan-vlaanderen-geco-rdineerde-versie-2011
(page 487) and
https://rsv.ruimtevlaanderen.be/Portals/121/documents/publicaties/samenvatting_w.pdf
pages 83-87 and the map on page 126
Op 16-09-16 om 21:51 schreef André Pirard:
Hi Marc,
Could you please forward/translate this reply to Michael and anyone
who believe that Liège (and other places?) contain main road
classification errors that produce bad routing. One-way streets and
the like will be another subject.
I suggested below to compare the OSM classification with that of Michelin.
Martin Koppenhoefer replied down below that Michael is wrong because
"we" (they) "do more or less like Michelin". But he doesn't say if it
is more or less and how much.
He asks "Where do you see differences?", meaning that he did not try
to find them.
Consequently, I have made my own Michelin compatible overpass query
<http://overpass-turbo.eu/?q=CltvdXQ6anNvbl1bdGltZcSCxIQ2MF07Ci8vIGdhdGhlciByZXN1bHRzCigKICDElyBxdcSeeSDEqiB3YXlbImhpZ2jEtnkiPSJtb3RvcsS_Il0oe3tiYm94fX0pxJXEq8S_xLnEu8S9xYnFgnByxI1hcsWAxYvFjcWPxZHFk8WVxLTFl8S3xZnEvMS-xLfFgSJzZWPEiGTFocWjxYzFjsWQxZLFlMSVxLTFmMS6xa7FnCJ0xJ7EjMW4xYrFusWmxb3FqcWrxLjGgsWbxbDFgnVuY2xhc3NpZmllZMaKxaXFvMWoxZbEtcWsxpHFr8WAxYLEocabZGVuxohsxqHFu8Wnxb7EtArFqcStxZ5pxrDEoMSixKTEpgrEkCDFkGR5xJU-xJXHg3NrZWzErnTFv8WNc3R5bGU6CsSWKkRlZmHHgCDFs3TEjG5ncyBmxYfGpnlzKi8KxL8ge8S0b3BhY2nHlTowLjXGpXdpZMScOjPGpcW1bMWHOmJsxLDGpX3HmsWYxZrGqT3FhMWGxYjEt13Hs8Wqx7bHuMe6ece8LjnIgMiCyIQ0yIdvyIlyOsShZMiPyJHFrMiTxL89xrttxbjImse0xKsgyJ3Huce7x73Io8aAyKVoOsinxLTIiMiKyK3Ir8exyLHGg8S3PcWzxbVuxbfFosi4yJzHt8i9yKDIv8ikyIPJg8mFxKvJh8ireceOyIl3yYrIksmNeT3GhnLGiMmUyJvIusi8yJ_IocmAxZfJgsmEyKjIqjrJomzJpMmmyYzGksmpxqzIgsavxrHJlcmwyZfJssmayYHJnMm3yYbIqciKZ8Shx4fEtMiQx5rHm0jFrmzFrnQgxJxlIMe4xIx2yp_HsmFmyasgxpdpY2vGvGfHr8mLyKDKoWnKo8mvxKvJsci-yKLJm8iEOMm4yYjGn8mKCsWT&c=BL83OJVENO&R>
(thanks to the author of the original) that is using the same colors
as Michelin (1).
At *very first (short) sight*, I am surprised that Martin did not spot
that the ref=N3 road that's going north-west is primary (in red)
mostly but is interrupted by secondary segments (in yellow) Rue de
Hesbaye
<http://www.openstreetmap.org/way/301189193#map=17/50.64889/5.55263>
and Rue Eugène Houdret <http://www.openstreetmap.org/way/237917909>.
As well as in Rue Louis Jamme
<http://www.openstreetmap.org/way/368855374#map=18/50.63813/5.58499>
to connect Place Delcour <http://www.openstreetmap.org/way/28611081>
to primary N90 <http://www.openstreetmap.org/way/28659889> and primary
N610 <http://www.openstreetmap.org/way/368855373> (2). N610 should in
theory be secondary but I completely agree with Michelin to make it
debatable and make it primary like the Namur road should.
I did not investigate further (I'm short sighted indeed) but I suggest
that anyone contesting an OSM route compared it with the same routing
by Michelin, tried to find an explanation by comparing my overpass
<http://overpass-turbo.eu/?q=CltvdXQ6anNvbl1bdGltZcSCxIQ2MF07Ci8vIGdhdGhlciByZXN1bHRzCigKICDElyBxdcSeeSDEqiB3YXlbImhpZ2jEtnkiPSJtb3RvcsS_Il0oe3tiYm94fX0pxJXEq8S_xLnEu8S9xYnFgnByxI1hcsWAxYvFjcWPxZHFk8WVxLTFl8S3xZnEvMS-xLfFgSJzZWPEiGTFocWjxYzFjsWQxZLFlMSVxLTFmMS6xa7FnCJ0xJ7EjMW4xYrFusWmxb3FqcWrxLjGgsWbxbDFgnVuY2xhc3NpZmllZMaKxaXFvMWoxZbEtcWsxpHFr8WAxYLEocabZGVuxohsxqHFu8Wnxb7EtArFqcStxZ5pxrDEoMSixKTEpgrEkCDFkGR5xJU-xJXHg3NrZWzErnTFv8WNc3R5bGU6CsSWKkRlZmHHgCDFs3TEjG5ncyBmxYfGpnlzKi8KxL8ge8S0b3BhY2nHlTowLjXGpXdpZMScOjPGpcW1bMWHOmJsxLDGpX3HmsWYxZrGqT3FhMWGxYjEt13Hs8Wqx7bHuMe6ece8LjnIgMiCyIQ0yIdvyIlyOsShZMiPyJHFrMiTxL89xrttxbjImse0xKsgyJ3Huce7x73Io8aAyKVoOsinxLTIiMiKyK3Ir8exyLHGg8S3PcWzxbVuxbfFosi4yJzHt8i9yKDIv8ikyIPJg8mFxKvJh8ireceOyIl3yYrIksmNeT3GhnLGiMmUyJvIusi8yJ_IocmAxZfJgsmEyKjIqjrJomzJpMmmyYzGksmpxqzIgsavxrHJlcmwyZfJssmayYHJnMm3yYbIqciKZ8Shx4fEtMiQx5rHm0jFrmzFrnQgxJxlIMe4xIx2yp_HsmFmyasgxpdpY2vGvGfHr8mLyKDKoWnKo8mvxKvJsci-yKLJm8iEOMm4yYjGn8mKCsWT&c=BL83OJVENO&R>
with the Michelin map
<https://fr.viamichelin.be/web/Cartes-plans/Carte_plan-Liege-_-Liege-Belgique?>
(my "Michelin info" message helps the wise JOSM users too), and asked
people with local knowledge if they know better than Michelin.
Last point is what source:???=Michelin ??? to use to prevent a StijnRR
or like arbitrarily destructing well thought out tagging without
notifying the author. I suggest
source:highway=https://viamichelin.be/web/Cartes-plans 2016 2016.
Kéne afêre à Lîdje and I hope that this work will be useful elsewhere too,
Cheers
André.
(1) As white would not fit for residential, I used grey. I'm
surprised indeed that no unclassified roads turn up in blue but that
doesn't affect routing.
(2) why the heck do those people adore splitting?
On 2016-09-15 17:02, André Pirard wrote:
On 2016-09-13 18:21, Marc Gemis wrote:
Hallo,
I was contacted by a mapper from Germany with whom I worked on turn:lanes.
He has to following question, can someone with local knowledge inform
us about the road classifications ? I have the impression a lot of
streets are indeed residential. Feel free to reply in French, I'll
translate it to English for him.
[snipped]
Now I want ask you about another problem.
Coming from here
http://forum.mapfactor.com/discussion/comment/13515#Comment_13515
I checked Liege to find out the mapping of roads there:
http://overpass-turbo.eu/s/imn
My guess is, that unclassified is used wrong there and that is the
reason for strange routings. My opinion is that unclassified as the
lowest kind of connecting roads do not end at city borders and have or
need common connection to same or higher class inside of towns or
villages. For me routers should avoid residentials and lower as much
as possible. Do you have any idea to check and correct this in Liege
to make routing better?
If there are any questions, please ask.
Regards
Michael aka hurdygurdyman
In order to produce good routing using the *main* roads (1), ...
why not adopt in OSM the same classification as Michelin
<https://fr.viamichelin.be/web/Cartes-plans/Carte_plan-Liege-_-Liege-Belgique?>
(2)?
They should know something about routing, shouldn't they?
Michelin
BE ID/type
Nxx
Nxxx
other
many houses
rare houses
OSM
primary
secondary
tertiary
residential
unclassified
Inside town, the main advantage is that streets are then classified
as either secondary/tertiary or residential/unclassified
according to whether they should be used or not for routes from town
place to place.
Please note that when a street is promoted to tertiary status, the
fact that it contains houses gets disregarded
(and hence I wonder if it's a good idea to consider houses for road
classification rather than using an additional residential attribute
(yes, I know it's the way "we" do it)).
I am willing to explain JOSM users how to compare OSM and Michelin
easily.
Please send me a *private **reply* to the next message "Michelin
info" to get it.
I would do a part of Liège myself if it's organized by someone
distributing the tasks.
Cheers
André.
On 2016-09-15 17:26, Martin Koppenhoefer wrote:
Generally, I think we are doing it more or less like Michelin in your
table. Where do you see differences? Clearly the classification of a
road should not change just because it enters a settlement.
Cheers,
Martin
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