Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
On 15/02/2018 08:52, Tom Pfeifer wrote: On 14.02.2018 17:39, Dave F wrote: https://www.openstreetmap.org/node/5408566797 It appears that you already engage in an edit war, although half a dozen people here tell you, from a variety of perspectives, that you are wrong. https://www.openstree

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
On 15/02/2018 09:11, Mateusz Konieczny wrote: Especially, as from looking at aerial images it is clear that these roads are not entering/leaving at the same point. It's very poor mapping to assume aerial imagery is current. DaveF ___ talk mailing

Re: [OSM-talk] Highway=trunk : harmonization between countries ?

2018-02-15 Thread Fernando Trebien
Landing on this discussion several months late. I've just heard of it by reading a wiki talk page [1]. Since 13 February 2009, the wiki [2] criticises highway classification as problematic/unverifiable. This has also been subject to a lot of controversy (and edit wars) in my local community (Brazi

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
If I'm judging the angles correctly, OsmAnd will not even announce that intersection: the angle between Wapping and Commercial is shallow enough that OsmAnd sees it as a single road, while the angle between Wapping and the roundabout is sharp enough to not require a "keep left" instruction. If

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
On 14/02/2018 20:19, Matej Lieskovský wrote: If two ways enter a roundabout at the same point, you can turn from road A into road B instantly, but going from B to A will require going around the entire roundabout. For a router to detect this, it would have to check (for every encountered node):

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
On 15/02/2018 10:05, Maarten Deen wrote: On 2018-02-14 19:39, Dave F wrote: On 14/02/2018 18:23, Johan C wrote: No, they are not. Roundabouts are special types of intersections.  Which is another type of intersection. They have a way on which you can drive round. And round. And round. And

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Dave F
On 15/02/2018 09:33, Andy Townsend wrote: On 14/02/2018 18:57, Dave F wrote: On 14/02/2018 18:32, Andy Townsend wrote: Having one exit node not joined to the next entry node better represents the real-world situation*. Disagree. Sharing a node should make no difference to the real world o

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Colin Smale
Just to throw another concept into the mix... so-called flare roads, where a road joining a roundabout (or other junction for that matter) splits into two short one-way segments which go either side of an obstacle. Mkgmap tries to recognise them by seeing if they come together within X metres. Why

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Maarten Deen
On 2018-02-14 19:39, Dave F wrote: On 14/02/2018 18:23, Johan C wrote: No, they are not. Roundabouts are special types of intersections. Which is another type of intersection. They have a way on which you can drive round. And round. And round. And they have other ways leading to and from th

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Andy Townsend
On 14/02/2018 18:57, Dave F wrote: On 14/02/2018 18:32, Andy Townsend wrote: Having one exit node not joined to the next entry node better represents the real-world situation*. Disagree. Sharing a node should make no difference to the real world or a router's perception of it. With separ

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Mateusz Konieczny
On Thu, 15 Feb 2018 09:52:19 +0100 Tom Pfeifer wrote: > May we ask you to undo your revert in CS 56352276? You still have not > explained how the two node solution "fudge OSM". Especially, as from looking at aerial images it is clear that these roads are not entering/leaving at the same point.

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Komяpa
> > > To repeat myself. You can determine if you need to "drive on this round > way" from a single node. No need for a section between entrance & exit. > You can. You're at it now. Someone else can be thinking of all the other cases while implementing their thing. Sometimes people think "this is

Re: [OSM-talk] Roundabouts - why is a separate segment required?

2018-02-15 Thread Tom Pfeifer
On 14.02.2018 17:39, Dave F wrote: https://www.openstreetmap.org/node/5408566797 It appears that you already engage in an edit war, although half a dozen people here tell you, from a variety of perspectives, that you are wrong. https://www.openstreetmap.org/changeset/56352276 On 14.02.2018 1