[Tagging] Bridges and layers
Anthony
osm at inbox.org
Tue Jul 27 16:14:09 BST 2010
On Tue, Jul 27, 2010 at 11:06 AM, David Earl <david at frankieandshadow.com> wrote:
> On 27/07/2010 15:58, Anthony wrote:
>>
>> On Tue, Jul 27, 2010 at 6:27 AM, David Earl<david at frankieandshadow.com>
>> wrote:
>>>
>>> You cannot tell from our model, without additional information such as a
>>> relation, whether two parallel ways are part of a dual carriageway or
>>> just
>>> parallel roads.
>>
>> What's the difference? Just whether or not they have the same name?
>
> That's not sufficient. You'd have to do some kind of heuristic test to see
> whether they were approximately parallel as well
You said they were parallel. Twice in fact.
> But you're right to some extent, so I revise my statement: "You cannot
> *easily and accurately* tell from our model..."
Personally I think the name of the road should be part of a relation
which consists of all ways which make the road, not tagged on every
single way individually. If that's what you're getting at, I agree.
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