[OSM-talk] superways as relations ?

Dave Stubbs osm.list at randomjunk.co.uk
Wed Aug 6 10:59:04 BST 2008


On Wed, Aug 6, 2008 at 10:35 AM, vegard <vegard at engen.priv.no> wrote:
> On Wed, Aug 06, 2008 at 11:20:32AM +0200, Stefan Neufeind wrote:
>>
>> This leads me to another thought: How do editors handle cases where a
>> way is member of a relation and you split it? Would make sense to add
>> both parts to the relation imho. Does somebody know how editors handle
>> that currently?
>>
>
> Well, yes and no.
>
> One type of relation is for example turn restrictions. It can have
> exactly two ways, I guess, one from and one to-way. And regardless, it
> doesn't make much sense having a turn-restriction between two ways that
> don't connect :)
>
> I guess there are a lot of cases where it's not necessarily true.
> Someone who knows the implementation will have to tell how it's handled
> today, though.


Potlatch just makes sure both parts are added to the relation which
works well for routes. You're right though that ideally it would be
slightly more intelligent about it.




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