https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
It is marked this way due to consistency that is 3 digit roads are primary. Of course there are exceptions and this could be marked to a lower category (imo not lower than tertiary).