[Tagging] Route members: ordered or not
Warin
61sundowner at gmail.com
Thu May 3 21:46:35 UTC 2018
I have ordered a few bus, train, cycling and walking routes.
In principle:
Both bus and train routes need to be ordered in version 2 of public transport (both stop positions and ways need to be ordered from start to finish).
Cycling and walking routes should be ordered for correct interpretation by data users.
On 04/05/18 04:13, James wrote:
> bus route relations can get very complexe if they are not ordered. I
> order them to make sure I haven't missed anything
>
> On Thu, May 3, 2018, 11:28 AM Yves, <yvecai at gmail.com
> <mailto:yvecai at gmail.com>> wrote:
>
> Un-ordered route members make it very hard to detect a broken route.
> Best practice :
> 1. If you edit a route, order it at best and check if you haven't
> broken it.
> 2. If you find an unordered route, order it, check if broken and
> try to repair it.
>
> Use for instance http://ra.osmsurround.org/.
> Yves
>
> Le 3 mai 2018 17:05:32 GMT+02:00, Michael Andersen <osm at hjart.dk
> <mailto:osm at hjart.dk>> a écrit :
>
> I regularly edit a number of cycle routes (primarily the danish national
> cycleroutes) and do my best to sort/order the members (it's helpfull when
> looking for gaps and other peculiarities in JOSM), but have found that it's
> often near impossible to make them perfectly sorted.
>
> Consider for examplehttps://www.openstreetmap.org/relation/20828. Where's the
> end points here?
>
> Also note that inexperienced mappers doing minor edits somewhere along a route
> cannot be expected to reorder it.
>
> On torsdag den 3. maj 2018 07.38.04 CEST Tod Fitch wrote:
>
> While I’ve mapped a number of trails most of them are not
> part of a designated larger route so I am not 100% sure,
> but I think hiking routes are much like highway routes:
> The ways in the relation should be ordered. Not sure why
> you’d need a node in there, especially without an explicit
> role. If the route ways are ordered it is obvious where
> the end points are. Cheers!
>
> On May 3, 2018, at 5:06 AM, David Marchal
> <Penegal at live.fr <mailto:Penegal at live.fr>> wrote:
> Hello, there. I recently worked a bit on hiking
> routes, and noticed that some routes have unordered
> members. That's particularly noticeable on
> waymarkedtrails.org <http://waymarkedtrails.org>
> <http://waymarkedtrails.org/>, as it makes the
> elevation graph rubbish and useless. I read the
> relation:route wiki page, but there is only advice
> regarding stops order, and not way members order.
> Shouldn't there be a note on this page regarding the
> importance of sorting the ways to have a more useful
> relation than only spaghettis? By the way, I saw some
> hiking relations having a node without explicit role,
> seemingly as a start point; is it a generally
> accepted, used feature, or only an idiosyncrasy?
> Awaiting your answers, Regards.
> ------------------------------------------------------------------------
>
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