Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-10-01 Thread Richard Mann
Picking up Ray's point that observing the back of the giveway sign is a rather indirect way of saying follow the road round to the right, the simplest/clearest is probably a relation on the through route linking the ways before/after the junction, saying this is the priority route through the

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-10-01 Thread David Earl
On 30/09/2009 22:05, Roy Wallace wrote: On Wed, Sep 30, 2009 at 7:35 PM, David Earl da...@frankieandshadow.com wrote: On 30/09/2009 10:20, Martin Koppenhoefer wrote: you could model it like this (see attached, colours are just indicating the ways, not highway-classes) Yes, that's also what

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-10-01 Thread Roy Wallace
On Thu, Oct 1, 2009 at 8:05 PM, David Earl da...@frankieandshadow.com wrote: It shows visually which the main road is at the junction and is a good model of the physical arrangement. IMHO it does not *explicitly* show the continuations of roads at the junction. And even if you do think it

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-10-01 Thread David Earl
On 01/10/2009 11:47, Roy Wallace wrote: On Thu, Oct 1, 2009 at 8:05 PM, David Earl da...@frankieandshadow.com wrote: It shows visually which the main road is at the junction and is a good model of the physical arrangement. IMHO it does not *explicitly* show the continuations of roads at the

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-10-01 Thread Roy Wallace
On Thu, Oct 1, 2009 at 9:35 PM, David Earl da...@frankieandshadow.com wrote: Ah, so are you saying that, in Martin's attached image, the red way and the yellow way should/could meet at the junction? If so, then IMHO it is even *less* clear that, e.g. traveling from the red to the grey way is

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Martin Koppenhoefer
you could model it like this (see attached, colours are just indicating the ways, not highway-classes) cheers, Martin attachment: Bildschirmfoto.png___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Richard Mann
You could record it as a type of turn-restriction relation, but I have a prejudice against those, having copied them down a bus route for quite a way until I realised I'd picked up a stray. That (of course) may be a problem with the editor I'm using, but keeping it simple is always a good maxim.

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread David Earl
On 30/09/2009 10:20, Martin Koppenhoefer wrote: you could model it like this (see attached, colours are just indicating the ways, not highway-classes) Yes, that's also what I typically do, e.g. http://www.openstreetmap.org/?lat=52.596517lon=0.376144zoom=18layers=B000FTF Even though the kerb

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Blaž Lorger
On Tuesday 29 September 2009 21:59:10 Matt Williams wrote: I've been noticing recently a problem we're going to/already have in our data when it comes to routing directions particularly. It concerns how to define continuations of roads at junctions and/or the road markings that delineate that.

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Martin Koppenhoefer
2009/9/30 Blaž Lorger blaz.lor...@triera.net: I don't see where problem lies. Is it that routing software will not be able to choose right route? You never stated it clearly, but if I understand correctly road from segment a to b has right of way over segment c. So all you need is a way to

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Blaž Lorger
On Wednesday 30 September 2009 21:00:12 Martin Koppenhoefer wrote: 2009/9/30 Blaž Lorger blaz.lor...@triera.net: I don't see where problem lies. Is it that routing software will not be able to choose right route? You never stated it clearly, but if I understand correctly road from

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-30 Thread Roy Wallace
On Wed, Sep 30, 2009 at 7:35 PM, David Earl da...@frankieandshadow.com wrote: On 30/09/2009 10:20, Martin Koppenhoefer wrote: you could model it like this (see attached, colours are just indicating the ways, not highway-classes) Yes, that's also what I typically do, e.g.

[OSM-talk] Clarifying and representing road markings at junctions

2009-09-29 Thread Matt Williams
I've been noticing recently a problem we're going to/already have in our data when it comes to routing directions particularly. It concerns how to define continuations of roads at junctions and/or the road markings that delineate that. This problem manifests itself in many ways but for a first

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-29 Thread Frederik Ramm
Hi, Matt Williams wrote: On the left you will see the physical plan of a road junction near where I live. The way that it would be represented in the OSM data model is shown on the right. [...] Your problem can and should be solved by a relation that models: to travel from node X to node Y

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-29 Thread Frederik Ramm
Hi, Roy Wallace wrote: In that case, use a relation. Two options: 1) http://wiki.openstreetmap.org/wiki/Relations/Proposed/Segmented_Tag [...] 2) http://wiki.openstreetmap.org/wiki/Relations/Proposed/Collected_Ways Both don't go far enough in my opinion. This is not a question of how can I

Re: [OSM-talk] Clarifying and representing road markings at junctions

2009-09-29 Thread Roy Wallace
On Wed, Sep 30, 2009 at 8:35 AM, Frederik Ramm frede...@remote.org wrote: Roy Wallace wrote: In that case, use a relation. Two options: 1) http://wiki.openstreetmap.org/wiki/Relations/Proposed/Segmented_Tag 2) http://wiki.openstreetmap.org/wiki/Relations/Proposed/Collected_Ways Both don't go