Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Wolfgang Wienke

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=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449zoom=18layers=T


--
   Mit freundlichen Gruessen

 Wolfgang Wienke

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Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Hugo Hölscher
I do think there are situations were you want do a full roundabout.
Example: want toturn left on a road, but that is prohibited. Right is
allowed and there is a nearby roundabout. Then you will do a full-turn.
Hugo
Op 22 nov. 2012 10:03 schreef Maarten Deen md...@xs4all.nl het volgende:

 On 2012-11-22 09:41, Wolfgang Wienke wrote:

 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_Datahttp://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?


 No, because that is not necessary.
 The AND data was structured such that at every point where there is a
 juntion of three or more ways, a new way was created. You'll still see that
 in lots of parts of the Netherlands:
 http://www.openstreetmap.org/**?lat=51.319581lon=5.996067**
 zoom=18layers=Mhttp://www.openstreetmap.org/?lat=51.319581lon=5.996067zoom=18layers=M
 

 It is not necessary that the road Lindanusstraat is split up in 5 parts,
 but that is how the AND dataset came. You'll notice the AND_nosr_r tags on
 these ways, so you can see it came from AND that way. The same with
 roundabouts. Because every connecting road is a point where 3 ways connect,
 it was a different way.

 Routing engines have no adverse effects from this. There is no
 (sell-respecting) routing engine that will tell you to continue for 100
 metres a thousand times when the road is spilt up in smaller ways. So why
 would it do that on a roundabout?
 A roundabout is recognized by its tag: junction=roundabout. Not by its
 physical properties (a circular one-way street).

  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=51.32506lon=5.97571**
 zoom=17layers=Thttp://www.openstreetmap.org/?lat=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=50.791022lon=6.059449zoom=18layers=T


 I don't see the difference there because it has only single ways
 connecting to the roundabout.

 But let me ask this simple question: if you go from A to B via a
 roundabout, do you traverse the whole roundabout or only a part of it? Why
 then add the full roundabout to a relation that describes the route from A
 to B?

 It is also clearer not to add the full roundabout. Take this example: 
 http://www.openstreetmap.org/**?lat=51.333905lon=5.995042**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=51.333905lon=5.995042zoom=18layers=T
 

 It is immediately clear that bus 62 goes from east to west. If you had the
 complete roundabout in the relation, the whole roundabout would be red and
 you would not know which direction the relation had.

 Regards,
 Maarten


 __**_
 Talk-nl mailing list
 Talk-nl@openstreetmap.org
 http://lists.openstreetmap.**org/listinfo/talk-nlhttp://lists.openstreetmap.org/listinfo/talk-nl

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Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Jo
In that case you add all the ways of the roundabout to your route relation.
You'll have to admit it's rather the exception than the rule.

Jo


2012/11/22 Hugo Hölscher hugoholsc...@gmail.com

 I do think there are situations were you want do a full roundabout.
 Example: want toturn left on a road, but that is prohibited. Right is
 allowed and there is a nearby roundabout. Then you will do a full-turn.
 Hugo
 Op 22 nov. 2012 10:03 schreef Maarten Deen md...@xs4all.nl het
 volgende:

 On 2012-11-22 09:41, Wolfgang Wienke wrote:

 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_Datahttp://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?


 No, because that is not necessary.
 The AND data was structured such that at every point where there is a
 juntion of three or more ways, a new way was created. You'll still see that
 in lots of parts of the Netherlands:
 http://www.openstreetmap.org/**?lat=51.319581lon=5.996067**
 zoom=18layers=Mhttp://www.openstreetmap.org/?lat=51.319581lon=5.996067zoom=18layers=M
 

 It is not necessary that the road Lindanusstraat is split up in 5
 parts, but that is how the AND dataset came. You'll notice the AND_nosr_r
 tags on these ways, so you can see it came from AND that way. The same with
 roundabouts. Because every connecting road is a point where 3 ways connect,
 it was a different way.

 Routing engines have no adverse effects from this. There is no
 (sell-respecting) routing engine that will tell you to continue for 100
 metres a thousand times when the road is spilt up in smaller ways. So why
 would it do that on a roundabout?
 A roundabout is recognized by its tag: junction=roundabout. Not by its
 physical properties (a circular one-way street).

  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=51.32506lon=5.97571**
 zoom=17layers=Thttp://www.openstreetmap.org/?lat=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=50.791022lon=6.059449zoom=18layers=T


 I don't see the difference there because it has only single ways
 connecting to the roundabout.

 But let me ask this simple question: if you go from A to B via a
 roundabout, do you traverse the whole roundabout or only a part of it? Why
 then add the full roundabout to a relation that describes the route from A
 to B?

 It is also clearer not to add the full roundabout. Take this example: 
 http://www.openstreetmap.org/**?lat=51.333905lon=5.995042**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=51.333905lon=5.995042zoom=18layers=T
 

 It is immediately clear that bus 62 goes from east to west. If you had
 the complete roundabout in the relation, the whole roundabout would be red
 and you would not know which direction the relation had.

 Regards,
 Maarten


 __**_
 Talk-nl mailing list
 Talk-nl@openstreetmap.org
 http://lists.openstreetmap.**org/listinfo/talk-nlhttp://lists.openstreetmap.org/listinfo/talk-nl


 ___
 Talk-nl 

Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Hugo Hölscher
Agree more the exeption then the rule. But any action which prohibits
routing for this situation should be avoided,
Hugo
Op 22 nov. 2012 12:48 schreef Jo winfi...@gmail.com het volgende:

 In that case you add all the ways of the roundabout to your route
 relation. You'll have to admit it's rather the exception than the rule.

 Jo


 2012/11/22 Hugo Hölscher hugoholsc...@gmail.com

 I do think there are situations were you want do a full roundabout.
 Example: want toturn left on a road, but that is prohibited. Right is
 allowed and there is a nearby roundabout. Then you will do a full-turn.
 Hugo
 Op 22 nov. 2012 10:03 schreef Maarten Deen md...@xs4all.nl het
 volgende:

 On 2012-11-22 09:41, Wolfgang Wienke wrote:

 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_Datahttp://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?


 No, because that is not necessary.
 The AND data was structured such that at every point where there is a
 juntion of three or more ways, a new way was created. You'll still see that
 in lots of parts of the Netherlands:
 http://www.openstreetmap.org/**?lat=51.319581lon=5.996067**
 zoom=18layers=Mhttp://www.openstreetmap.org/?lat=51.319581lon=5.996067zoom=18layers=M
 

 It is not necessary that the road Lindanusstraat is split up in 5
 parts, but that is how the AND dataset came. You'll notice the AND_nosr_r
 tags on these ways, so you can see it came from AND that way. The same with
 roundabouts. Because every connecting road is a point where 3 ways connect,
 it was a different way.

 Routing engines have no adverse effects from this. There is no
 (sell-respecting) routing engine that will tell you to continue for 100
 metres a thousand times when the road is spilt up in smaller ways. So why
 would it do that on a roundabout?
 A roundabout is recognized by its tag: junction=roundabout. Not by its
 physical properties (a circular one-way street).

  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=51.32506lon=5.97571**
 zoom=17layers=Thttp://www.openstreetmap.org/?lat=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=50.791022lon=6.059449zoom=18layers=T


 I don't see the difference there because it has only single ways
 connecting to the roundabout.

 But let me ask this simple question: if you go from A to B via a
 roundabout, do you traverse the whole roundabout or only a part of it? Why
 then add the full roundabout to a relation that describes the route from A
 to B?

 It is also clearer not to add the full roundabout. Take this example: 
 http://www.openstreetmap.org/**?lat=51.333905lon=5.995042**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=51.333905lon=5.995042zoom=18layers=T
 

 It is immediately clear that bus 62 goes from east to west. If you had
 the complete roundabout in the relation, the whole roundabout would be red
 and you would not know which direction the relation had.

 Regards,
 Maarten


 __**_
 Talk-nl 

Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Jo
We were talking about roundabouts that were split in their composing ways,
nothing is impeding routing over a split roundabout, but the graph of the
routes is not as nice/clear/unambiguous when the roundabouts are not split.

Polyglot


2012/11/22 Hugo Hölscher hugoholsc...@gmail.com

 Agree more the exeption then the rule. But any action which prohibits
 routing for this situation should be avoided,
 Hugo
 Op 22 nov. 2012 12:48 schreef Jo winfi...@gmail.com het volgende:

 In that case you add all the ways of the roundabout to your route
 relation. You'll have to admit it's rather the exception than the rule.

 Jo


 2012/11/22 Hugo Hölscher hugoholsc...@gmail.com

 I do think there are situations were you want do a full roundabout.
 Example: want toturn left on a road, but that is prohibited. Right is
 allowed and there is a nearby roundabout. Then you will do a full-turn.
 Hugo
 Op 22 nov. 2012 10:03 schreef Maarten Deen md...@xs4all.nl het
 volgende:

 On 2012-11-22 09:41, Wolfgang Wienke wrote:

 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_Datahttp://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?


 No, because that is not necessary.
 The AND data was structured such that at every point where there is a
 juntion of three or more ways, a new way was created. You'll still see that
 in lots of parts of the Netherlands:
 http://www.openstreetmap.org/**?lat=51.319581lon=5.996067**
 zoom=18layers=Mhttp://www.openstreetmap.org/?lat=51.319581lon=5.996067zoom=18layers=M
 

 It is not necessary that the road Lindanusstraat is split up in 5
 parts, but that is how the AND dataset came. You'll notice the AND_nosr_r
 tags on these ways, so you can see it came from AND that way. The same with
 roundabouts. Because every connecting road is a point where 3 ways connect,
 it was a different way.

 Routing engines have no adverse effects from this. There is no
 (sell-respecting) routing engine that will tell you to continue for 100
 metres a thousand times when the road is spilt up in smaller ways. So why
 would it do that on a roundabout?
 A roundabout is recognized by its tag: junction=roundabout. Not by its
 physical properties (a circular one-way street).

  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=51.32506lon=5.97571**
 zoom=17layers=Thttp://www.openstreetmap.org/?lat=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=50.791022lon=6.059449zoom=18layers=T


 I don't see the difference there because it has only single ways
 connecting to the roundabout.

 But let me ask this simple question: if you go from A to B via a
 roundabout, do you traverse the whole roundabout or only a part of it? Why
 then add the full roundabout to a relation that describes the route from A
 to B?

 It is also clearer not to add the full roundabout. Take this example: 
 http://www.openstreetmap.org/**?lat=51.333905lon=5.995042**
 zoom=18layers=Thttp://www.openstreetmap.org/?lat=51.333905lon=5.995042zoom=18layers=T
 

 

Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Robert Elsenaar
At the other way,  as we do it in Holland every roundabout should be tags in a 
forward and backward way in relations when the roundabout is split up. One of 
the reasons relation get polluted. 

But your drawing argument is a illegal one.  We do not map for the renderers. 
And all relations are two sided so always the whole roundabout is used. 

When you draw a route from a to be the routing software has to be smart enough 
to colour only the part of the roundabout from way a to be into the right 
direction. 

Met vriendelijke groeten 
Robert Elsenaar

Maarten Deen md...@xs4all.nl schreef:

On 2012-11-22 09:41, Wolfgang Wienke wrote:
 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?

No, because that is not necessary.
The AND data was structured such that at every point where there is a 
juntion of three or more ways, a new way was created. You'll still see 
that in lots of parts of the Netherlands:
http://www.openstreetmap.org/?lat=51.319581lon=5.996067zoom=18layers=M

It is not necessary that the road Lindanusstraat is split up in 5 
parts, but that is how the AND dataset came. You'll notice the 
AND_nosr_r tags on these ways, so you can see it came from AND that way. 
The same with roundabouts. Because every connecting road is a point 
where 3 ways connect, it was a different way.

Routing engines have no adverse effects from this. There is no 
(sell-respecting) routing engine that will tell you to continue for 100 
metres a thousand times when the road is spilt up in smaller ways. So 
why would it do that on a roundabout?
A roundabout is recognized by its tag: junction=roundabout. Not by its 
physical properties (a circular one-way street).

 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=51.32506lon=5.97571zoom=17layers=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=50.791022lon=6.059449zoom=18layers=T

I don't see the difference there because it has only single ways 
connecting to the roundabout.

But let me ask this simple question: if you go from A to B via a 
roundabout, do you traverse the whole roundabout or only a part of it? 
Why then add the full roundabout to a relation that describes the route 
from A to B?

It is also clearer not to add the full roundabout. Take this example: 
http://www.openstreetmap.org/?lat=51.333905lon=5.995042zoom=18layers=T

It is immediately clear that bus 62 goes from east to west. If you had 
the complete roundabout in the relation, the whole roundabout would be 
red and you would not know which direction the relation had.

Regards,
Maarten


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Talk-nl@openstreetmap.org
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Re: [OSM-talk-nl] junction= roundabaout

2012-11-22 Berichten over hetzelfde onderwerp Maarten Deen

On 2012-11-22 12:23, Robert Elsenaar wrote:

At the other way, as we do it in Holland every roundabout should be
tags in a forward and backward way in relations when the roundabout 
is

split up. One of the reasons relation get polluted.

But your drawing argument is a illegal one. We do not map for the
renderers. And all relations are two sided so always the whole
roundabout is used.


Not all relations are two sided. A lot of bus relations are from A to B 
with a second relation from B to A.


Maarten



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