2012/7/24 fly <[email protected]> > On 24/07/12 13:19, Mike N wrote: > > On 7/24/2012 6:38 AM, Jo wrote: > >> It would be a lot easier if it were possible to create route part > >> relations, for example from one stop to the next and then be able to use > >> these relations in the actual route relations. This would enable to map > >> deviations for longer lasting road works as well. > > So you want route part which might be used by several different routes > and its variants. > > I get your point and have to say I had thought about similar before but > I think it was/will get reject cause of complexity. You will end up with > at least one more level of relations with the relation hierarchy even > though it would save me a lot of work especially where I have several > lines with up to six or seven variants all following the same road. > > > There already exists relation type=route,route=bus. type=route_master > > then includes members of this relation. Does this address your issue? > > > > http://wiki.openstreetmap.org/wiki/Relation:route_master > > This is used to get all route variants in one relation > > Well, to be honest, I had hoped that everybody who is doing PT would have been screaming for this by now. It's a message on talk-fr by somebody who wants to start doing this for cycle route relations that triggered me into proposing it yet again. I have proposed it already when the PT scheme was introduced, but they didn't want to include it back then, as they feared it might be hard enough already to get it passed, without it.
Of course it's an extra layer in the hierarchy, but it would be a lot more logical than the way it's done now. As far as adding complexity goes, it would actually reduce the number of relations a particular way would be part of. Somebody told me they got a bit scared after seeing this video: http://www.youtube.com/watch?v=MlC4y30Jqxk&feature=relmfu There is a part 2: http://www.youtube.com/watch?v=jfBDJABASns Now, this operation would have been almost trivial with 2 route parts (one for each direction), which had been part of all the actual route relations making use of the ways connecting those stops. Here's hoping that it may someday become possible to do it that way, Polyglot
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