Talk:Tag:junction=roundabout

Contents 1 Why not junction=mini_roundabout? 2 Roundabout Names 3 Junction Names 4 Amount of Points 5 highway=*-tag of a roundabout 6 relation 7 ref tag

Why not junction=mini_roundabout?

Would not the key 'junction' be more appropriate than 'highway' for mini-roundabouts since this tag is only applied at the intersection of two or more ways? Also it would fit in better with junction=roundabout. --Milliams 18:36, 21 August 2007 (BST)

+1 Gorm 02:06, 20 December 2009 (UTC)

Roundabout Names

Is there any facility to add a name to a roundabout -- the main roundabouts here in Basingstoke, UK are named.

Certainly. Add the 'name' tag to the roundabout with the name in it. Morwen 20:45, 27 October 2007 (BST)

Is there any standard / common practice on naming roundabouts in the middle of a longer road? See here: http://www.openstreetmap.org/?way=30877938
==Knossou Avenue====(o)====Knossou Avenue====(o)====Knossou.. etc.
I believe they should have the same name as the bigger road. Zeptomoon 18:07, 1 September 2010 (BST)

As I understood it, the roundabout is a junction and therefore, does not belong to any of the intersecting roads. Consequently it should not carry the name of any road (bigger or smaller). --ALE! 19:49, 1 September 2010 (BST)

The intersection itself might be named, independently and differently from the roads crossing it. For example Prinsenkrysset in Trondheim, Norway. (Intersection of Prinsens Gate and Kongens Gate. If the roundabout is named in such a manner, than name=* is on its place. --Skippern 21:48, 1 September 2010 (BST)

I get the idea! Makes sense to me. I guess, I was tempted to tag for the renderer again...d'oh! Zeptomoon 12:05, 2 September 2010 (BST)

Strong support for this conclusion!--JeffH 21:19, 17 December 2010 (UTC)

Junction Names

A junction does not necessarily have a roundabout and can still have a specific name independent of the road names. For the moemnt I've just put a 'name' tag on the junction. --Le top 09:42, 29 January 2011 (UTC)

Amount of Points

The example shows some roundabouts and uses "just" 4 points. In the map a typical roundabout has 8 or more points be drawn. It might make sense to add a good hint on how many points are sensible to use (i have seen rounabouts with 30+ points) Flohoff 12:55, 18 May 2008 (UTC)

In my opinion roundabouts should have as many nodes that it takes to give it a round shape. Compare with how you draw a twisty road section. --Erik Lundin 22:53, 17 September 2008 (UTC)

highway=*-tag of a roundabout

Old text said: "If the larger road ends at this roundabout (so all other connecting roads are smaller), the roundabout should probably get the same highway=* tag as the smaller roads."

No, that was not a very good idea.

If a "larger road" ends at a roundabout then there must still be more traffic on any segment of the roundabout (traffic from the larger road plus traffic from the smaller roads) than on either of the directions on the larger road. So, the roundabout should be of the same class as the larger road.

Not necessarily. E.g. the roundabout at the end of a motorway is usually not part of the motorway itself - and is more likely to be something like trunk or primary. I've changed it to "usually". Richard B 16:22, 4 September 2008 (UTC)

Motorways would certainly be the exception - whatever's at the end of a motorway should generally not be tagged as motorway. Similarly, slip roads should be excluded when thinking of the "larger road" - a roundabout where "trunk" meets "primary" should be "trunk", but if it's grade-separated with slip roads the roundabout should be "primary". Such is my opinion, at least. Chriscf 16:30, 4 September 2008 (UTC)

relation

I think we need an example for how to tag a relation (e.g tags needed for the ways and tags needed for the relation)--skyper 13:46, 2 November 2009 (UTC)

I see very little use for adding such relation, maybe someone can enlighten us... Surely it's simple to group together consecutive ways tagged with junction=roundabout, before using them for any purposes needing a single entity for each roundabout? Alv 14:08, 2 November 2009 (UTC)

ref tag

Is it correct to remove ref tags from roundabouts? I personally think that this is ok as a roundabout is a junction and therefore belongs to two or more different roads. But please correct my reasoning if I am wrong. I want to get a second opinion on this. --ALE! 22:24, 3 January 2010 (UTC)

Is the highways parts of relations? In that case the ref is protected by the various highway relations, and not really needed on each road segment. If not, than maybe all the road refs should be included. But what about roads that starts or ends in a roundabout, should their refs be extended to the roundabout, or is this really only valid for roads crossing a roundabout? I tend to tag only the refs of roads passing the roundabout. --Skippern 08:43, 4 January 2010 (UTC)

I think the situation is analogous to the 'Roundabout names' issue discussed earlier: the roundabout does not belong to any of the roads and should therefore not have road refs on it. To be more concrete: if you're crossing a roundabout from one minor road to another, it just causes confusion to be told that you have to drive some metres on say a primary road with such and such number. And IMHO, adding refs from all classified roads would be just like including all the road names, just leading to even higher levels of confusion! However, as with names, if a country gives numbers to roundabouts themselves, then these can of course be tagged. I strongly agree with ALE, who started this topic, but I see a lot of misleading tagging here so it would be really good to get some clear guidance into the wiki itself. --JeffH 21:19, 17 December 2010 (UTC)