[Talk-transit] Summary of Public Transport Proposal Criticism -> a real example from Zürich

Michael von Glasow michael at vonglasow.com
Sat Feb 5 00:32:29 GMT 2011

On 02/04/2011 12:09 PM, Richard Mann wrote:
> I've been attempting to order a relation using P2 (I don't recommend
> trying it yourself yet - the process needs streamlining). I managed to
> sort the nodes in a two-directions-with-loops relation:
> http://www.openstreetmap.org/browse/relation/85299
> and got a reasonable line-diagram, once I'd added forward_stop and
> backward_stop:
if I may just comment on the relation: I would start and end at the 
terminus (which seems to be The Oval) - that way the relation represents 
the longest way a passenger can travel (assuming services don't normally 
end at some point in the loop), which I think is most intuitive. I would 
also use "stop" rather than "forward_stop" and "backward_stop" for the 
roles since the outward and return directions of a spoon route are 
somewhat hard to tell apart. (Unless one stop in the loop is formally 
designated as the terminus where services routinely end.)
> I think this confirms that line diagrams will work fine with stops
> beside the way.
In fact - as I understand it, the tool ignores ways completely and just 
examines stop members and their order. As far as I know, retrieving the 
stops of a line on openbusmap works the same way.


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