On Fri, Sep 5, 2014 at 7:39 AM, Dave F. <[email protected]> wrote:
> On 05/09/2014 12:31, Jo wrote: > >> >> In bus route relations the ways don't get roles. >> >> Why's that? How would you tag a circular route that goes only clockwise? I might use a role for the ways in that case, just for disambiguation. > > In this case some ways would be members twice. >> >> > As the Relation's IDs aren't necessarily consecutive, how does a router > know which to follow? Or is there a way to sort them into order? Yes, JOSM has sorting tools. Also, there's always the "From/Via/Destination" tags on the relation itself, in which routers can sort out the order themselves with relatively little effort. > > > In walking and cycling route relations we do use them. Those are >> bidirectional, whereas the bus and tram routes describe start to terminus >> for all variations. >> >> > I'm unsure how you can suggest bus routes aren't bidirectional. They can > go both ways along a way the same as walkers/cyclists. Bicycle and walking routes rarely loop back on themselves on otherwise linear routes.
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