On Sun, 2023-01-29 at 14:31 +0100, Florian Lohoff wrote: > On Sun, Jan 29, 2023 at 12:12:06AM +0000, Philip Barnes wrote: > > > > When I first encountered Canadian four way stops in 1980, I did > > think these should be mini-roundabouts. > > Thats the main point. In Germany we have a solution of "last resort" > which is called "Rechts vor links" - So when there is no other > rules of priority its "Right before left".
That is a rule I believe exists in most of continental Europe. I certainly learned of it as ‘Priorité à droite’ in French lessons at school. > > Other jurisdications dont have this so there is a problem with > producing > junctions with "equal priority". The UK solution is the "mini > roundabout". > > So a mini roundabout is really "mini" or "tiny" - Not necessarily > round. A roundabout isn't necessarily round either :) It about going around, the name comes from the fairground roundabout (carousel in American English) or a children's roundabout in playground. A mini-roundabout in the UK, and in France which is the country which comes second in terms of my driving experience are signed with a blue sign with white arrows. Different to a normal roundabout. They are always traversable but doing so is often made uncomfortable for small vehicles by either building them up with concrete so they can be the height of a speed bump or with the use of setts. Others are just white paint at what was once a give way and nobody goes around the paint. They just make priority equal. https://www.mapillary.com/app/?pKey=381114187015295 I did spot this one today, https://www.mapillary.com/app/?pKey=509797140032524 which is traversable by a truck, but you wouldn't want to in a car. > The problem here starts with the imagery in the Wiki which IMHO dont > show mini roundabouts, but random roundabouts with traversable > center. Am not sure what you mean, all of the photos that say mini-roundabout, I would interpret as such. The one that looks different is https://wiki.openstreetmap.org/w/images/5/5e/Kreisverkehr.jpg but it has the mini-roundabout sign so I would treat it a a mini-roundabout. A large vehicle turning would have to cross the island. In reality most drivers would go straight over it. > > And main distinction people read in the wiki is "traversable center" > so > everything with a traversable center gets tagged by mappers as mini > roundabout. > I don't think I have ever come across a roundabout with a traversable centre, why would it even exist? > So we have a problem with the wiki documentation. It looks fine to me, although mini-roundabouts were common in the UK by the time I was learning to drive in the late 70s. Phil (trigpoint) _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
