This is probably a can of worms that needs opening - there are a number of AU specific things that I think most of us apply a "best-fit" approach to, that really need further discussion so we can come up with some level of standardisation. Roundabouts are one, seasonal closures a second, and personally I think the edit war around surface/smoothness/usability has relevance to AU mappers given the prevalence of unmade roads once you are outside the suburban areas. Add to that things like placarded load restrictions for tunnels, roads requiring permits (eg: Arnhem Land), emergency boom gates across roads where there aren't train lines and suddenly you start to appreciate the limitations of the UK centric system we are using (or perhaps it's the richness of the AU road system).
My two cents on roundabouts: Given the existing defintion on the wiki, it's probably a coin toss as to the better way - personally, I think mini_roundabout is fine. For standard suburban roundabouts in Melbourne, it about correct, and drawing a diamond shape to make a roundabout is just butt ugly. At least with a single node, you can choose to do something decent renderer wise ( a nice pretty circle or icon or whatever). The core idea, which is the fact that there is a roundabout at that point, is represented either way. I'm sure there's more I have to say on this issue, but I've had too many beers, and my fingers aren't working... Matt Liz wrote: > On Thu, 11 Dec 2008, Ian Sergeant wrote: > >> I feel the approach you are taking is wrong. There are reasonable >> arguments to use a mini-roundabout tag in Australia where it is currently >> being used. If you want to convince people to not use it, and to map using >> junction, take the time to understand and address those arguments, and >> convince people that the best way is the way you are suggesting. Don't >> dismiss its proponents as lazy, or worse still as disruptive. Many of its >> these people have been valuable contributors to getting the map done. >> >> Ian. >> > > I'd like to second Ian's request for more information to be discussed. > Darrin, could you please put up some photographs of the sort of roundabouts > you are discussing. We may all agree that they are apples in the end. > > I have put on the wiki some information culled from wikipedia. > http://wiki.openstreetmap.org/wiki/Roundabouts > The Germans (in a Germanic way) have the definition down to the metre of the > Mini, small and large roundabout. The Poms are the odd ones out in their > definition of the mini-roundabout with the curious painted circle on the > ground. > > > We should not be making up the definitions of these things for OSM. We should > be using definitions either from RTA (NSW) or Transport SA or other local > authority. If they don't exist or can't be revealed to us then the work of > people who write Wikipedia and have the time knowledge and inclination to > research these definitions should be a next resource. > If we have access to University Departments of Traffic Engineering; > Geographic > Information Systems or Urban Planning they may also be sources of > definitions. > > > I'm pragmatic about the roundabouts. > Does putting 4 nodes on the map with a one way loop improve the usability of > the map? > Junction=roundabout has been seen mapped onto a single node, and then doesn't > render in JOSM. It requires at least a few nodes and a way drawn in the > direction of travel. > > I would like to draw the discussion away from the subjective "laziness". This > immediately draws battle lines and polarises the discussion, so that we can't > reach any consensus. I have put up sample roundabout photos consistent with > the Wikipedia English definition, and am happy to view others photos and > discuss further. > > _______________________________________________ > Talk-au mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-au > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.176 / Virus Database: 270.9.16/1842 - Release Date: 12/10/2008 > 6:53 PM > > _______________________________________________ Talk-au mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-au
