Maarten Deen schreef: > On Tue, Jul 15, 2008 at 12:01:10PM +0200, Dirk St?cker wrote: > >> On Thu, 10 Jul 2008, Frederik Ramm wrote: >> >> >>> If I were you I'd write a simple script to parse a planet file and >>> dump the tags of every way where the last node equals the first. >>> Straighforward to write, doesn't even require memory (node id >>> equality is sufficient, node position not required), just a few hours >>> of cpu time. That will give you a very good idea of how people tag >>> areas; of yourse you'll have some circular roads, roundabouts etc. as >>> well but it should be obvious to the human being which are meant so >>> be areas. >>> >> Results are (europe): >> >> closed unclosed >> 36769 : 16527 : junction=roundabout >> >> --> Here probably the check needs to be disabled. User input required for >> decision. >> > > I have noticed that in general the roundabouts that where imported with > the AND data for the Netherlands are not closed. They normally are laid > out as seperate ways between each connecting road (so a roundabout with > 4 connecting roads consists of 4 unclosed ways). These ways all have > different AND reference numbers. > I have been connecting a few of them, I'm cc'ing this mail to the OSM-NL > list to get more comments, most imporantly if this AND reference number > is still of use. > I wouldn't do that. I find that I'm breaking up roundabouts a lot in order to include parts of them in relations for bicycles and buses. For buses the parts will have different roles (backward, forward) in a route relation. For bicycle routes, often it's only a part of them that is part of the relation.
Polyglot _______________________________________________ josm-dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/josm-dev
