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 exam
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
On Wed, Sep 30, 2009 at 5:59 AM, Matt Williams wrote:
>
> Thoughts/comments/suggestions?
First, I am assuming you are interested in solutions that are possible
now, without major changes to the OSM database structure. etc.
In that case, use a relation. Two options:
1) http://wiki.openstreetmap.
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
ca
On Wed, Sep 30, 2009 at 8:35 AM, Frederik Ramm 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 far enough
you could model it like this (see attached, colours are just
indicating the ways, not highway-classes)
cheers,
Martin
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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.
S
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=52.596517&lon=0.376144&zoom=18&layers=B000FTF
Even though the ker
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 th
2009/9/30 Blaž Lorger :
> 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 indicate
> this. The
On Wednesday 30 September 2009 21:00:12 Martin Koppenhoefer wrote:
> 2009/9/30 Blaž Lorger :
> > 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 ha
2009/9/30 Blaž Lorger :
> I was not able to open last one, but first two are cases where road with right
> of way is not the one going straight.
this is, what this thread is about, read the first post, first sentence ;-)
cheers,
Martin
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On Wed, Sep 30, 2009 at 8:27 PM, Richard Mann
wrote:
>
> So I'd much prefer a giveway instruction (giveway=yes or giveway=-1) on the
> way that gives way, probably on a node near the junction, and inferring the
> direction from the way that the node is on.
>
> I lost the will to read when much the
On Wed, Sep 30, 2009 at 7:35 PM, David Earl 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.
> http://www.openstreetmap.org/?lat=52
ichard Mann
Sent: 30 September 2009 11:27
To: talk@openstreetmap.org
Subject: Re: [OSM-talk] Clarifying and representing road markings at
junctions
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
2009/9/30 Roy Wallace :
> On Wed, Sep 30, 2009 at 7:35 PM, David Earl
> 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.
>>
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 ju
On 30/09/2009 22:05, Roy Wallace wrote:
> On Wed, Sep 30, 2009 at 7:35 PM, David Earl
> 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,
On Thu, Oct 1, 2009 at 8:05 PM, David Earl 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 works "visually", that i
On 01/10/2009 11:47, Roy Wallace wrote:
> On Thu, Oct 1, 2009 at 8:05 PM, David Earl 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
On Thu, Oct 1, 2009 at 9:35 PM, David Earl 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 a left turn, wher
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