>
> 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>https://
> viamichelin.be/web/Cartes-plans 2016 2016.
>


You can't just use Michelin as a source. It is copyrighted data. The site
explicitly states you are only allowed to use their content for personal
use.
 So source:classification=michelin is probably a good idea, makes it easier
to revert.
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