[Talk-ca] Road directionality (direction ir route relation)

Jarek Piórkowski jarek at piorkowski.ca
Mon Apr 4 01:46:31 UTC 2022


On 01/04/2022 16:29, Daniel @jfd553 wrote:
> I keep seeing the following JOSM warning: Role “east, west, north or 
> south” is not part of expected values 
> “<empty>/forward/backward/link/guidepost”.
> 
> I’ve tried to understand why there is still a JOSM warning while this is 
> so widely used in Canada and the US. The wiki [1] suggests creating one 
> relation per direction and then a super-relation to group them. Isn’t it 
> the best (more universal) way to it? I don’t recall any discussion about 
> it in talk-ca.
> 
> Any thoughts about it?
> 
> Daniel
> 
> [1] https://wiki.openstreetmap.org/wiki/Route_directions 
> <https://wiki.openstreetmap.org/wiki/Route_directions>

I've seen the route super-relation used for the QEW and it seems to work 
well: https://www.openstreetmap.org/relation/102339. It is more work 
though. JOSM warnings are generally aimed at people with a lot of time :)

I'm also not sure if the expectation would be that: a) collector 
roadways are not included in the direction-relation; or b) collector 
roadways _are_ included, at cost of the relation members no longer being 
continuous/sortable?

--Jarek



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