Le sam. 27 avr. 2024 à 15:38, michael spreng (datendelphin) mailinglist@osm.datendelphin.net a écrit :
Now the primary in particular has problems for example in Zurich (I don't know the situation in Lausanne) where signage just vanishes inside the city. They really don't want you to drive through the city, but take the ring around it.
Michael
We also encountered problems in the canton of Geneva, where there is only one 1st class road, no blue road signs containing the number "1" , and it is not even clear where national road 1 officially ends. We therefore used a set of criteria inspired by OSM's general rules (the primary network is the network linking major towns), inspired by the road network hierarchy defined by the local authorities, and inspired by actual road signs and traffic. This makes armchair mapping more difficult, but produces a map that better reflects what's actually on the ground.
It should be noted that https://wiki.openstreetmap.org/wiki/Switzerland/Map_Features#Highway was discussed around 2007 https://web.archive.org/web/20081205060125/http://wiki.openstreetmap.org/wik... when the road network wasn't even fully mapped in OSM. 17 years later, these rules show some limitations, particularly with the deployment of policies against motorized traffic in cities.
Marc Mongenet