Disconnected roads at zooms < 6

[dnomadb]

Location
https://maps.protomaps.com/#map=5.5/42.624/-90.609&theme=light&renderer=maplibregl&tiles=https://build.protomaps.com/20240131.pmtiles

Screenshots

Required information

• Tileset version and source: https://build.protomaps.com/20240131.pmtiles (but also present in earlier builds)

[nvkelso]

If we could detect these are part of bigger road relations, we could bring the missing pieces (that aren't motorways) earlier?

[bdon]

Yeah, I think highway relations are the only way to solve this, because right now it's using a naive interpretation of highway=motorway to generalize. A approach similar to what we're doing with minAdminLevel in the boundaries layer could work.

[wipfli]

The ref tag in OSM can also help maybe. At least would for A2 which turns from highway=motorway to highway=trunk in the Gotthard tunnel in Switzerland... https://maps.protomaps.com/#map=9.47/46.6034/8.6464&theme=light&renderer=maplibregl&tiles=https://build.protomaps.com/20240131.pmtiles

[wipfli]

In the US this was fixed by #386. There are other places where roads are not continuous like Bretagne in France but let's close this issue for now. Feel free to share more locations @dnomadb