It’s here: in Afidnes, north of Athens. We are still repairing ways wrongly mapped as dual carriageways by a very aggressive former user (source): we are still kinda spooked by the former user’s behaviour, so when similar editing practices come up we are more vigilant than usual.
If you see a hatched road with no physical separation that’s mapped as a “dual carriageway”, then it’s most likely done by the former user.
https://www.openstreetmap.org/#map=19/38.188469/23.854409
https://www.openstreetmap.org/#map=19/38.202770/23.856819
These are 2 examples that would be useful to be explained how should the ways be placed on the map.
Στις Παρ 27 Ιουν 2025, 08:39 ο χρήστης Sharks with laser beams attached to their heads! via OpenStreetMap Community Forum <community@noreply.openstreetmap.org> έγραψε:
I updated the map in the areas you provided.
Basically, we only split the highway where there is a physical divider. A raised kerb counts as a physical divider.
When we need to describe the road layout with hatched lines in the middle, the lanes[:*]=*, turn[:lanes:*]=* and change[:lanes:*]=* tags are useful (sadly I am a novice in the change=* tags).
Sorry for the delay in the reply.
YES, I mind them a lot, mapping them all the time, give ways, stop spots, crossings, gore_chevron, gore_diagonal, lane dividers (solid_line, double solid line are one heck of a road_marking to not overtake or u-turn). Although the ‘gore’ has 1000+ use, it somehow got completely ignored in the tagging proposal of the “road markings revised”… it went straight into voting
It did not got completely ignored. The aim of the proposal is to reorganize the existing “wildly growing” open-ended list of road_marking values into clear categories. The example section even show a gore case: road_marking=restriction + pattern=stripes.
(If you need it more explicitly, the proposal leaves open the possibility of using reason tags).
In France, the default legal speed limit is 110 km/h on roads with separated carriageways. It is 80 km/h on other roads.
Article R413-2
2° 110 km/ h sur les routes à deux chaussées séparées par un terre-plein central ;
3° 80 km/ h sur les autres routes.
Here there would not exist the links since there are no physical dividers
The layout is based on what @ManuelB701 described.
So we have to get the curve meter so that to find if it is other way?
The criterion “physical object or not” is simple, acceptable and universal.
He also replied it before he see the cases that I posted!
@manuelb701 please reply on my latest examples!
I really don’t like to post here just to confirm @ika-chan.
We’re explaining to you the whole time that exceptions do exist (and the fact that we’re discussing it for this long shows how far away this is from being “simple”).