Am 22.11.2012 07:50, schrieb Maarten Deen:
On 2012-11-21 20:48, Wolfgang Wienke wrote:
Am 21.11.2012 18:48, schrieb Maarten Deen:
On 11/21/2012 06:45 PM, Maarten Deen wrote:
On 11/21/2012 06:41 PM, Wolfgang Wienke wrote:
> Hi,
> I'm mapping in NL near Aachen. Can someone tell me, why there is more
> that ONE way in a dutch roundabaout?
There isn't. A roundabout is always one way. If there are two
directions
it is not a roundabout but a circular road.
Just after sending this I realized that I must have misread your
question. You mean why most roundabouts are made up of more than one
way.
Initially it is because of the AND import. The AND dataset was such that
between every junction of 3 or more roads there was a sperate way.
What means the AND dataset?
AND donated their dataset in 2007 and was subsequently integraded into OSM.
<http://wiki.openstreetmap.org/wiki/AND_Data>
I do not find there any special about roundabouts. I think, that it is
important to recognize a roundabout for navys to tell the user something
like "leave the rounabout at the second street".
Is there no discussion in Netherlands to join the automatically
generated part of a roundabout manually?
Now it is just convenient if you have different relations (like a bus
line) over the roundabout. Then you can indicate exactly which side a
relation takes.
Well, this is really not necessary because you drive the roundabout
alwas in the same direction.
In Germany we only have roundabouts made of ONE way. If you use the
relation-editor of JOSM, than you can easily recgnize a roundabout.
Would it not be easier, to use only ONE way in a roundabaout?
I think this looks much tidier than when roundabouts are always one way.
<http://www.openstreetmap.org/?lat=51.32506&lon=5.97571&zoom=17&layers=T>
Also, if you make a route over a roundabout, you never use the full
roundabout, so why would you want the full roundabout in the relation?
Of course this is true, but I think it looks tidier the other way, look
here. You see at once, that there is a roundabout.
http://www.openstreetmap.org/?lat=50.791022&lon=6.059449&zoom=18&layers=T
--
Mit freundlichen Gruessen
Wolfgang Wienke
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